Research Article |
Corresponding author: Ruth Kiew ( ruth@frim.gov.my ) Academic editor: Ricarda Riina
© 2020 Ruth Kiew, Lim Chung-Lu.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation:
Kiew R, Chung-Lu L (2020) Checklist of vascular plants of Klang Gates Quartz Ridge, Malaysia, a 14-km long quartz dyke. PhytoKeys 166: 57-77. https://doi.org/10.3897/phytokeys.166.55778
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The Klang Gates Quartz Ridge (KGQR) is proposed for protection as National Heritage and as a UNESCO World Heritage Site because of its spectacular size, exceptional beauty and significant biodiversity. The checklist of vascular plants documents 314 species that comprise a unique combination that grows on lowland quartz and that is distinct from the surrounding lowland equatorial rain forest by the absence of orchids, palms, gingers and tree canopy families. The Rubiaceae, Gramineae, Moraceae, Apocynaceae, Melastomataceae and Polypodiaceae are the most speciose families. The summit vegetation at 200–400 m elevation is dominated by Baeckea frutescens (Myrtaceae) and Rhodoleia championii (Hamamelidaceae) and shows similarities to the plant community on rocky mountain peaks above 1500 m. About 11% of its species are endemic in Peninsular Malaysia and four are endemic to KGQR: Aleisanthia rupestris (Rubiaceae), Codonoboea primulina (Gesneriaceae), Spermacoce pilulifera (Rubiaceae), and Ilex praetermissa (Aquifoliaceae). All four are provisionally assessed as Critically Endangered. Two, Eulalia milsumi (Gramineae) and Sonerila prostrata (Melastomataceae), are endemic to KGQR and a few neighbouring smaller quartz dykes. They are assessed as Endangered. The KGQR is a fragile habitat and conservation management is urgently required to halt the spread of the aggressive alien grass, Pennisetum polystachion and to prevent further habitat degradation from visitors. Based on KGQR being a threatened habitat, its biodiverse flora, and endangered species, it qualifies as an Important Plant Area.
Alien species, endangered species, endemic species, flora, Important Plant Area, quartz dyke, Selangor, UNESCO World Heritage Site
The Klang Gates Quartz Ridge (KGQR), renamed Gombak Selangor Quartz Ridge (
Composed of pure quartz, the dyke was exposed as the surrounding granite material weathered away revealing sheer pale grey or white vertical cliffs rising above the surrounding vegetation. Though about 200 m wide at the base, in places the summit ridge is a knife edge only a metre or so wide with precipitous drops on either side. Jagged like a dragon’s spine, it is dissected by vertical faults giving it the appearance of limestone karst, so it has been termed a pseudo-karst formation. It is pierced by three rivers that flow through narrow gullies. The pure quartz weathers to coarse sand that is very nutrient poor, has poor water retention, and has crumbled to form a steep base of colluvium with 30–35° and in places up to 60° slopes.
Adaptation to the extremely poor nutrient status and water retention has resulted in a distinctive flora with a unique assemblage of plants that includes several rare and/or endemic species restricted to the KGQR. It is markedly different from the surrounding tropical lowland rain forest not only in species composition, but also in physiognomy (with sparse stunted trees), complexity (not multi-layered and without the epiphyte flora) and lower species diversity (
Its striking topography and unique flora have long attracted botanists. The first botanical collections were made by H.N. Ridley, who made three visits in 1908, 1916 and 1921 that mainly concentrated on the summit ridge flora. He wrote the first account of the flora (
Being so close to the capital Kuala Lumpur, it has suffered disturbance from agricultural activities, urbanisation, visitor pressure, and the invasion of alien weeds. All these activities threaten the continued existence of its flora and species of conservation importance. On the Kuala Lumpur side, encroachment from housing and road building threatens. The north side is protected by the Hulu Gombak Forest Reserve Extensions and the Klang Gates Dam.
Agricultural activities were a particular problem in the 1970s and 1980s (
The impact of urbanisation began with the building of a bungalow in 1883 on the top of the ridge above the gully through which the Klang River flows. Between 1893 and 1895 this gully was dammed to form a reservoir (
The KGQR’s easy accessibility and proximity to Kuala Lumpur has long encouraged rock climbers and hikers who are rewarded by a panoramic view of the Kuala Lumpur skyline in one direction and the reservoir lake and virgin rain forest in the other (Figure
The natural open nature of the KGQR flora makes it vulnerable to invasion by weeds. Formally, it was an island surrounded by rain forest that acted as a buffer against weed dispersal. Now this has gone from the southern side, so the KGQR is open to invasion by any weed that can withstand harsh conditions for plant growth. The agricultural activities mentioned above led to a great increase in the number of weed species recorded from the KGQR (
In 1936, 130 ha of the KGQR were gazetted as the Klang Gates Wildlife Reserve to protect all wildlife and in particular the serow, Capricornis sumatraensis, a totally protected animal in Malaysia (
In anticipation of the KGQR becoming a UNESCO World Heritage Site, this account aims to make available essential baseline data on the unique assemblage of plants that make up its flora by providing:
• a complete checklist of vascular plant species
• details of the endemic and rare species of conservation importance
• a complete bibliography for the botany of the KGQR.
Accessibility and proximity to Kuala Lumpur means that many botanists have from time to time collected plants there so its flora can be said to be well-collected. This has meant that it has been possible to build the checklist using herbarium specimen data from the herbaria at KEP, KLU and SING that hold the majority of KGQR collections. Herbarium codes follow Index Herbariorum at http://sweetgum.nybg.org/ih. Herbarium specimens provide a permanent record and, should there be questions about a species’ identity, they can be verified at any time in the future by reference to the specimen. An example of the importance of making herbarium specimens is illustrated by the case of Hoya mappigera, a species only described in 2011 but that had been collected from the KGQR in 1962 (Sinclair 10730) under the name Hoya campanulata.
The database software Botanical Research and Herbarium Management System (BRAHMS) in the National Herbarium of Malaysia (KEP) at the Forest Research Institute Malaysia, Selangor, Malaysia, enabled records to be extracted from its extensive holding. Not included are exotic weeds, invasive species or plants from the surrounding lowland rain forest.
For cases where species are recorded from KGQR in the literature but specimens were not cited, for instance
The checklist compiled in this study contains 314 species of vascular plants in 233 genera and 105 families (Table
Families, genera and species of vascular plants of Klang Gates Quartz Ridge.
Group | Families | Genera | Species |
---|---|---|---|
Lycophytes | 1 | 1 | 2 |
Ferns | 16 | 24 | 36 |
Gymnosperms | 1 | 1 | 1 |
Flowering plants | 87 | 207 | 275 |
Total | 105 | 233 | 314 |
In the checklist, four species proved to be endemic to KGQR, namely Aleisanthia rupestris, Codonoboea primulina, Ilex praetermissa and Spermacoce pilulifera (Figure
Without a doubt, it is the summit flora that is of greatest botanical interest for its unique combination of species. Baeckea frutescens and Rhodoleia championii are the dominant tree species, while shrubs include Austrobuxus nitidus and Vaccinium bancanum and several epiphytic species, for instance Fagraea auriculata, Ficus deltoidea var. angustifolia and Rhododendron longiflorum, that here grow directly on the quartz rocks. The ground layer is sparse with mats of the white moss Leucobryum aduncum covering the thin peat layer. The endemic grass Eulalia milsumi forms sparse tussocks in soil-filled cracks and crannies. Aleisanthia rupestris as its name suggests grows in crevices on the sheer cliff faces in full sun. In contrast, Ilex praetermissa grows in forest on steep slopes in partial shade where there is an accumulation of peat. The gorges that pierce the ridge present a completely different cool, humid, shaded environment where lush herbs, for instance Begonia sinuata, Codonoboea primulina and gingers, can thrive.
Notable in the checklist is the absence or poor representation of trees typical of the canopy of lowland equatorial rain forest (
It might be expected that the quartzite flora would share similarities with the limestone flora that also grows on a rocky, free-draining substrate with poor soil development. However, comparison with the flora of Batu Caves with 269 species (
The repeated burning of a large section of the southern face has resulted in long-term detrimental consequences. The steep slope is still covered by secondary vegetation among which the aggressive fern Dicranopteris linearis smothers competing vegetation. Many of the trees recorded by
Among the site endemic species, Ilex praetermissa populations are now found only on the northern side suggesting that they are unable to disperse and become established in secondary vegetation on the southern side. This species is critically endangered having an extremely small population size and, in addition, it is a dioecious species (
The endemic grass, Eulalia milsumi, is also seriously threatened by disturbance. Although reasonably common in less disturbed habitats,
Fortunately, Aleisanthia rupestris appears to be less influenced by disturbance (
The very small population of Codonoboea primulina of less than 150 individuals that grows in an extremely small area measuring about 50 m2 (
The proposal by the Selangor Town and Country Planning Department to protect the KGQR under the National Heritage Act 2005 (Act 645) status is long overdue. Globally, it is indeed unique for a combination of its great size, the tall exposed quartz dyke with its pseudo-karst morphology, and its unique assemblage of plant species that includes endemic and rare plants. It meets all three criteria for being designated an Important Plant Area (
This study was supported by Universiti Pertanian Malaysia (currently Universiti Putra Malaysia), Serdang, Selangor, Malaysia, and the Flora of Peninsular Malaysia Project, the latter funded by the Ministry of Science, Technology and Innovation under Project No. 01-04-01-000 Khas 2 entitled ‘Safeguarding the Forest Plant Diversity of Peninsular Malaysia’. We thank the Curators of the National Herbarium of Malaysia (KEP) and the Singapore Botanic Gardens Herbarium (SING) for permission to study specimens and databases in their care. Special thanks go to S. Anthonysamy for his excellent support in the field, to T.L. Yao for going through the checklist and to Mdm Saripah Barom for help with accessing the BRAHMS database.
Checklist of vascular plant species collected from the Klang Gates Quartz Ridge, Selangor, Malaysia.
(Endemism: E – endemic in Peninsular Malaysia, EE – endemic in KGQR, E? – possibly endemic in Peninsular Malaysia).
Family classification follows the Flora of Peninsular Malaysia for ferns (
Where details of herbarium specimens are not available, the literature source is provided, namely
LYCOPHYTES
SELAGINELLACEAE
E Selaginella strigosa Bedd.
Sinclair SFN 40140
Selaginella stipulata (Blume) Spring
Molesworth-Allen
FERNS
ADIANTACEAE
Haplopteris ensiformis (Sw.) E.H.Crane
Piggott
Haplopteris scolopendrina (Bory) C.Presl
Piggott
ASPLENIACEAE
Asplenium affine Sw.
Syahida FRI 55109
Asplenium nitidum Sw.
Kiew RK 1090, Parris 10968, Sinclair SFN 40142
Asplenium pellucidum Lam.
Molesworth-Allen, Piggott
BLECHNACEAE
Blechnopsis orientalis (L.) C.Presl
Piggott
CIBOTIACEAE
Cibotium barometz (L.) J.Sm.
Anthonysamy SA 374, Molesworth-Allen, Piggott
DAVALLIACEAE
Davallia denticulata (Burm.f.) Mett. ex Kuhn
Molesworth-Allen
Davallia heterophylla J.Sm.
Ng FRI 22112, Molesworth-Allen, Piggott
Davallia repens (L.f.) Kuhn
Piggott
Davallia solida (G.Forst.) Sw.
Molesworth-Allen, Piggott
DENNSTAEDTIACEAE
Microlepia speluncae var. hancei (Ptantl) C.Chr. & Tardieu
Piggott
Pteridium esculentum (Forst.) Cockayne
Molesworth-Allen, Piggott
DIPTERIDACEAE
Dipteris conjugata Reinw.
Piggott
GLEICHENIACEAE
Dicranopteris linearis (Burm.f.) Underw.
Piggott
HYMENOPHYLLACEAE
Hymenophyllum blandum Racib.
Molesworth-Allen, Piggott
NEPHROLEPIDACEAE
Nephrolepis biserrata (Sw.) Schott
Anthonysamy SA 373
Nephrolepis falciformis J.Sm.
Piggott
OLEANDRACEAE
Oleandra neriiformis Cav.
Kiew RK 1080, Piggott
POLYPODIACEAE
Drynaria rigidula (Sw.) Bedd.
Piggott
Goniophlebium percussum (Cav.) W.H.Wagner & Grether
Piggott
Lepisorus longifolius (Blume) Holttum
Strugnell FMS 14623
Leptochilus macrophyllus (Blume) Noot.
Piggott
Microsorum membranifolium (R.Br.) Ching
Ingram FMS 14605
Pyrrosia angustata (Sw.) Ching
Symington 39403, Piggott
Pyrrosia lanceolata (L.) Farw.
Anthonysamy SA 372, Piggott
Selliguea heterocarpa (Blume) Blume
Piggott
Selliguea lateritia (Baker) Hovenkamp
Kiew RK 1088
Selliguea stenophylla (Blume) Parris
Piggott
PTERIDACEAE
Pteris biaurita L.
Strugnell FMS 14603
Pteris longipinnula Wall. ex J.Agardh
Molesworth-Allen, Piggott
E Syngramma dayi (Bedd.) Bedd.
Parris 10967, Sinclair SFN 40139
SINOPTERIDACEAE
Cheilanthes tenuifolia (Burm.f.) Sw.
Piggott
TECTARIACEAE
Tectaria fissa (Kunze) Holttum
Kiew RK 1089, 1091, Parris 10969, Hume 7065
Tectaria singaporiana (Wall. ex. Hook. & Grev.) Copel.
Molesworth-Allen
WOODSIACEAE
Diplazium polypodioides Blume
Ingram FMS 14602
GYMNOSPERMS
GNETACEAE
Gnetum gnemon var. brunonianum (Griff.) Markgr.
Henderson
Gnetum sp.
Kiew RK 991
Flowering Plants
ACANTHACEAE
Peristrophe acuminata var. acuminata
Henderson
Pseuderanthemum graciliflorum Ridl.
Henderson
E Pseuderanthemum selangorense (C.B.Clarke) Ridl.
Henderson
Staurogyne kingiana C.B.Clarke
Henderson
ACHARIACEAE
E Hydnocarpus humei Ridl.
Hume 7256
E Ryparosa fasciculata King
Henderson
ANACARDIACEAE
Buchanania sessilifolia Blume
Henderson
Semecarpus velutina King
Mohd. Hashim FMS 102
Swintonia schwenckii Teijsm. & Binn. ex Hook.f.
Henderson
ANISOPHYLLEACEAE
Anisophyllea corneri Ding Hou
Watson 538, Kiew RK 992
ANNONACEAE
Alphonsea elliptica Hook.f. & Thomson
Syahida FRI 55106
Mitrella kentii (Blume) Miq.
Symington KEP 39393
Trivalvaria pumila (King) J.Sinclair
Sinclair SFN 40143, Kiew RK 1170
APOCYNACEAE
Alstonia scholaris (L.) R.Br.
Henderson
Chilocarpus costatus Miq.
Henderson
Dischidia bengalensis Colebr.
Kiew RK 211
Epigynum ridleyi King & Gamble
Henderson
E Hoya campanulata Blume
Strugnell FMS 13033
Hoya mappigera Rodda & Simonsson
Sinclair SFN 10730
Hoya revoluta Wight
Kiew RK 1155, Strugnell FMS 55109
Kibatalia maingayi (Hook.f.) Woodson
Watson 533
Pottsia laxiflora (Blume) Kuntze
Henderson
Willughbeia edulis Roxb.
Mohd. Hashim FMS 402, Kiew FRI 65534, Symington KEP 39395
AQUIFOLIACEAE
EE Ilex praetermissa Kiew
Kiew RK 215, RK 1255, Strugnell FMS 33213, Symington KEP 39398
ARACEAE
Aglaonema nebulosum N.E.Br.
Henderson
Amydrium medium (Zoll. & Moritizi) Nicolson
Henderson
Anadendrum microstachyum (de Vriese & Miq.) Backer & Alderw.
Kiew RK 1150
Homalomena humilis (Jack) Hook.f.
Hay AH 2023, Kiew RK 1175, Saw FRI 34265
Homalomena pendula (Blume) Bakh.f.
Hay AH 2024
Rhaphidophora montana (Blume) Schott
Henderson
Schismatoglottis scortechinii Hook.f.
Henderson
ARALIACEAE
Arthrophyllum diversifolium Blume
Henderson
Schefflera oxyphylla (Miq.) R.Vig.
Henderson
ARISTOLOCHIACEAE
Thottea piperiformis (Griff.) Mabb.
Kiew RK 1139, Stone 15648
BEGONIACEAE
E Begonia holttumii Irmsch.
Henderson 7291
Begonia wrayi Hemsl.
Ridley 13430
Begonia sinuata Wall. ex Meisn.
Kiew RK 1084, Sinclair SFN 40132, Saw FRI 34264
CAMPANULACEAE
Lobelia zeylanica L.
Henderson
CAPPARACEAE
Capparis versicolor Griff.
Ridley s.n., Henderson
COMMELINACEAE
Amischotolype gracilis (Ridl.) I.M.Turner
Ridley s.n. (1908), Kiew RK 1180
COMPOSITAE
Blumea balsamifera (L.) DC.
Henderson
Vernonia arborea Buch.-Ham.
Henderson
CONNARACEAE
E Rourea rugosa Planch.
Henderson
CONVOLVULACEAE
Argyreia capitiformis (Poir.) Ooststr.
Henderson
Neuropeltis maingayi Peter ex Ooststr. var. maingayi
Henderson
COSTACEAE
Cheilocostus speciosus (J.Koenig) C.D.Specht.
Henderson
CYPERACEAE
Cyperus compressus L.
Henderson
Cyperus cyperoides (L.) Kuntze
Kiew RK 1142
Cyperus laxus Lam.
Kiew RK 1147A
Fimbristylis thouarsii (Kunth) Merr.
Symington KEP 33210, KEP 39410
Mapania palustris (Hassk. ex Steud.) Fern-Vill.
Kiew RK 1144
DICHAPETALACEAE
E Dichapetalum griffithii (Hook.f.) Engl.
Henderson
DILLENIACEAE
Tetracera asiatica (Lour.) Hoogl.
Julius FRI 54873
DIOSCOREACEAE
Dioscorea pyrifolia Kunth
Anthonysamy SA 195
DIPTEROCARPACEAE
Shorea bracteolata Dyer
Watson 741
Shorea parvifolia subsp. parvifolia
Watson 739
DRACAENACEAE
Dracaena elliptica Thunb.
Kiew RK 224
E? Dracaena maingayi Hook.f.
Kiew RK 1124, RK 1140
Dracaena umbratica Ridl.
Kiew RK 1194
EBENACEAE
Diospyros sumatrana Miq.
Henderson
ELAEOCARPACEAE
Elaeocarpus mastersii King
Kiew RK 77, Symington 33207, Burkill SFN 10028
Elaeocarpus nitidus var. nitidus
Phoon 108, 110
Elaeocarpus stipularis var. stipularis
Phoon 107
ERICACEAE
Rhododendron longiflorum Lindl.
Ridley s.n., Symington KEP 33215
Vaccinium bancanum var. tenuinervium J.J.Sm.
Symington KEP 33206, 39404
EUPHORBIACEAE
Croton oblongus Burm.f.
Henderson
Epiprinus malayanus Griff.
Henderson
Euphorbia ridleyi Croizat.
Wong FRI 35270
Macaranga gigantea (Rchb.f. & Zoll.) Müll.Arg.
Henderson
Macaranga hullettii King ex Hook.
Henderson
Macaranga hypoleuca (Rchb.f. & Zoll.) Müll.Arg.
Henderson.
Mallotus macrostachyus (Miq.) Müll.Arg.
Henderson
Pimelodendron griffithianum (Müll.Arg.) Benth.
Henderson
FAGACEAE
Castanopsis inermis (Lindl. ex Wall.) Benth. & Hook.f.
Mohd Hashim FMS 305
Castanopsis megacarpa Gamble
Henderson
Lithocarpus ewychkii (Korth.) Rehder
Henderson
Lithocarpus sundaicus (Blume) Rehder
Mohd Hashim FMS 29
GENTIANACEAE
Fagraea auriculata Jack
Henderson
GESNERIACEAE
Aeschynanthus pulcher (Blume) G.Don
Kiew RK 1081, Syahida FRI 55108
EE Codonoboea primulina (Ridl.) Kiew
Ridley s.n., Kiew RK 1182, Soh FRI 471218, Syahida FRI 55105
Codonoboea quinquevulnera (Ridl.) C.L.Lim
Kiew RK 1077, Symington KEP 39407, Syahida FRI 55107
GRAMINEAE
Acroceras tonkinense (Balansa) C.E.Hubb.
Chew FRI 51872
Axonopus compressus (Sw.) P.Beauv.
Chew FRI 51866
Centotheca lappacea (L.) Desv.
Chew FRI 51873
Chrysopogon aciculatus (Retz.) Trin.
Chew FRI 51868
Cyrtococcum patens (L.) A.Camus
Chew FRI 51875
Digitaria fuscescens (J.Presl) Henrard
Chew FRI 51864
Eragrostis brownii (Kunth) Nees
Chew FRI 51863
Eriachne pallescens R.Br.
Chew FRI 51862, Kiew RK 1126, Symington KEP 47125
EE Eulalia milsumi Ridl.
Symington KEP 39405, Chew FRI 51879
Lophatherum gracile Brongn.
Chew FRI 51871
Melinis repens (Willd.) Zizka
Chew FRI 51867
Ottochloa nodosa (Kunth) Dandy
Chew FRI 51874
Panicum brevifolium L.
Chew FRI 51876
Paspalum conjugatum P.J.Bergius
Chew FRI 51880
Pennisetum polystachion (L.) Schult.
Chew FRI51865
GUTTIFERAE
E Calophyllum ferrugineum var. oblongifolium (T.Anderson) P.F.Stevens
Wyatt-Smith 66609
E Mesua elegans (King) Kosterm.
Ridley 13527
E Mesua kunstleri var. kunstleri
Symington KEP 47132
HAMAMELIDACEAE
Rhodoleia championii Hook.f.
Foxworthy KEP 10031, Strugnell KEP 10991, Kiew RK 210
HUGONIACEAE
Indorouchera griffithiana Planch. Hallier f.
Henderson
ICACINACEAE
Gomphandra quadrifida (Blume) Sleumer
Henderson
IXONANTHACEAE
Ixonanthes icosandra Jack
Henderson
Ixonanthes reticulata Jack
Symington KEP 33220, 37450
LABIATAE
Callicarpa longifolia Lam.
Henderson
Callicarpa pentandra Roxb.
Henderson
Clerodendrum deflexum Wall.
Henderson
Rotheca serrata (L.) Steane & Mabb.
Kiew RK 209, Anthonsamy SA 163
E Vitex longisepala King & Gamble
Henderson
LAURACEAE
Alseodaphne nigrescens (Gamble) Kostem.
Henderson
Litsea umbellata (Lour.) Merr.
Mohd Hashim FMS 198
Litsea costalis (Nees) Kosterm.
Mohd Hashim FMS 277
LECYTHIDACEAE
Barringtonia macrostachya (Jack) Kurz
Kiew RK 1107
Barringtonia scortechinii King
Kiew RK 1179
LEGUMINOSAE
Archidendron contortum (Mart.) I.C.Nielsen
Henderson
Archidendron jiringa (Jack) I.C. Nielsen
Henderson
Derris elegans Grah. ex Benth.
Strugnell FMS13389
Bauhinia bidentata Jack
Mead FMS 30765
Flemingia strobilifera (L.) W.T.Aiton
Strugnell FMS 13387
E Fordia albiflora (Prain) Dasuki & Schot
Henderson
LOGANIACEAE
Norrisia malaccensis Gardner
Symington KEP 37448
LORANTHACEAE
Macrosolen cochinchinensis (Lour.) Tiegh.
Symington KEP 37446, Stone 15641
Scurrula ferruginea (Jack) Danser
Kiew RK 1125
LOWIACEAE
E Orchidantha longiflora (Scort.) Ridl.
Henderson
MALVACEAE
Durio griffithii (Mast.) Bakh.
Symington KEP 47126
Grewia laevigata Vahl
Henderson
Microcos tomentosa Sm.
Henderson
Pterospermum javanicum Jungh.
Watson 531
MARANTACEAE
Donax canniformis (G.Forst.) K.Schum.
Henderson
MELASTOMATACEAE
E Anerincleistus pauciflorus Ridl.
Sinclair SFN 40137
Diplectria divaricata Kuntze
Henderson
Medinilla crassifolia (Reinw. ex Blume) Blume
Poore 1086
Melastoma malabathricum L.
Omar FMS 9936
Oxyspora bullata (Griff.) J.F.Maxwell
Kiew RK 1178
Oxyspora exigua (Jack) J.F.Maxwell
Henderson
Pogonanthera pulverulenta (Jack) Blume
Kiew RK 993, Putz FRI 21901, Wyatt-Smith KEP 66610
Pternandra echinata Jack
Henderson
Sonerila obliqua Korth.
Kiew RK 1086, Sinclair SFN 40133
E Sonerila prostrata Ridl.
Ridley s.n., Foxworthy KEP 10039, Symington KEP 47134
MELIACEAE
Chisocheton pentandrus subsp. paucijugus (Miq.) Mabb.
Henderson
Dysoxylum arborescens (Blume) Miq.
Mohd Hashim FMS 1310
MELIOSMACEAE
Meliosma sumatrana (Jack) Walp.
Henderson
MEMECYLACEAE
Memecylon dichotomum var. dichotomum
Henderson
MENISPERMACEAE
Pericampylus glaucus (Lam.) Merr.
Henderson
MORACEAE
Artocarpus gomezianus Wall. ex Trécul
Henderson
Ficus chartacea (Wall. ex Kurz) King
Henderson
Ficus deltoidea var. angustifolia (Miq.) Corner
Mohd Hashim FMS 1103, Kiew RK 214, Strugnell FMS 13029
Ficus deltoidea var. kunstleri (King) Corner
Kiew RK 93, Mead FMS 30761, Symington KEP 39390
Ficus fulva Reinw. ex Blume
Henderson
Ficus hispida L.f.
Anthonysamy SA 167
Ficus obscura var. borneensis (Miq.) Corner
Henderson
Ficus pellucidopunctata Griff.
Henderson
Ficus punctata Thunb.
Davies 2837
Ficus sagittata Vahl
Henderson
Ficus sumatrana Miq.
Symington KEP 39394
Ficus trichocarpa Blume
Henderson
Ficus villosa var. villosa
Henderson
Hullettia dumosa King
Kiew RK 1171
MYRISTICACEAE
Gymnacranthera forbesii (King) Warb.
Henderson
Horsfieldia majuscula (King) Warb.
Henderson
Horsfieldia polyspherula (Hook.f. ex King) J.Sinclair var. sumatrana (Miq.) W.J.de Wilde
Watson FMS 537
Knema furfuracea (Hook.f. & Thomson) Warb.
Henderson
Knema hookeriana (Wall. ex Hook.f. & Thomson) Warb.
Henderson
Knema malayana Warb.
Henderson
E Knema plumulosa J.Sinclair
Mohd Hashim FMS 279
Myristica cinnamomea King
Kiew RK 222
MYRSINACEAE
E Antistrophe caudata King & Gamble
Kiew RK 1181, Sinclair SFN 40132
Ardisia colorata Roxb.
Henderson
Ardisia lanceolata Roxb.
Henderson
Ardisia villosa Roxb.
Henderson
Grenacheria amentacea Mez
Henderson
Grenacheria lampani Mez
Henderson
Labisia pumila (Blume) Fern.-Vill.
Kiew RK 1148
MYRTACEAE
Baeckea frutescens L.
Symington KEP 37441
Syzygium attenuatum (Miq.) Merr. & L.M.Perry
Strugnell FMS 13036, Symington KEP 33202
Syzygium chloranthum (Duthie) Merr. & L.M.Perry
Mead FMS 30764
Syzygium gratum (Wight) S.N.Mitra
Kiew RK 850
Syzygium subdecussatum (Wall. ex Duthie) I.M.Turner var. subdecussatum
Kiew RK 213, Symington KEP 47123
OCHNACEAE
Campylospermum serratum (Gaertn.) Bittrich & M.C.E.Amaral
Henderson
OLEACEAE
Jasminum elongatum (P.J.Bergius) Willd.
Kiew RK 1154
OPILIACEAE
Champereia manillana (Blume) Merr.
Henderson
Lepionurus sylvestris Blume
Henderson
ORCHIDACEAE
Renanthera sp. (Spider orchid)
Adam obs.
Dendrobium acerosum Lindl.
Strugnell FMS 13398
PALMAE
Calamus javensis Blume
Henderson
Eugeissona tristis Griff.
Adams obs, Kiew obs.
Licuala triphylla Griff.
Kiew RK 1079, RK 1172
Pinanga disticha (Roxb.) Blume ex H.Wendl.
Kiew RK 1173
PANDACEAE
Galearia fulva (Tul.) Miq.
Hume 7146
PANDANACEAE
Benstonea ornata (Solms.) Callm. & Buerki
Kiew RK 1145, Rk 1810
PENTAPHRAGMATACEAE
Pentaphragma horsfieldii (Miq.) Airy Shaw
Henderson
PENTAPHYLACACEAE
Eurya acuminata DC.
Henderson
PHRYMACEAE
Cyrtandromoea grandis Ridl.
Kiew RK 1146
PHYLLANTHACEAE
Antidesma salicinum Ridl.
Henderson
Aporosa benthamiana Hook.f.
Henderson
Baccaurea brevipes Hook.f.
Henderson
Breynia discigera Müll.Arg.
Henderson
Bridelia tomentosa Blume
Burkill SFN 10033, Julius FRI 54866
Glochidion superbum Baill.
Henderson
Phyllanthus pulcher Wall.
Henderson
Sauropus androgynus (L.) Merr.
Henderson
PICRODENDRACEAE
Austrobuxus nitidus Miq.
Kiew RK 848, Symington KEP 37444, Wyatt-Smith KEP 6612
PIPERACEAE
E? Piper porphyrophyllum N.E.Br.
Henderson
Piper stylosum Miq.
Kiew RK 1176
POLYGALACEAE
Salomonia cantoniensis Lour.
Kiew RK 208
Xanthophyllum griffithii Hook.f. ex A.W.Benn.
Watson 529
Xanthophyllum wrayi King
Henderson
PRIMULACEAE
Maesa ramentacea (Roxb.) A.DC.
Henderson
PROTEACEAE
Helicia attenuata (Jack) Blume
Hume FMS 7251
RHIZOPHORACEAE
Carallia eugenoidea King
Ridley s.n. (1921), Strugnell FMS 33208, Symington KEP 39396
Carallia suffruticosa Ridl.
Sinclair SFN 40136
ROSACEAE
Prunus grisea var. tomentosa
Henderson
RUBIACEAE
EE Aleisanthia rupestris (Ridl.) Ridl.
Ridley s.n., Symington KEP 33201, Kiew RK 216
Argostemma pictum Wall.
Kiew RK 1185
Chassalia curviflora (Wall.) Thwaites
Henderson
Greenea corymbosa (Jack) K.Schum.
Kiew RK 1153
Hedyotis auricularia L.
Henderson
Hedyotis capitellata Wall. ex G.Don
Henderson
Hedyotis corymbosa (L.) Lam.
Henderson
Hedyotis dichotoma J.Koenig ex Roth
Kiew RK 207
Hedyotis vestita R.Br. ex G.Don
Henderson
Ixora concinna R.Br. ex Hook.f.
Kiew RK 1143
Ixora congesta Roxb.
Kiew RK 1152
Ixora javanica var. javanica
Henderson
Ixora lobbii Loudon
Henderson
Ixora pendula var. pendula
Kiew RK 1151
Lasianthus densifolius Miq.
Henderson
Lasianthus maingayi Hook.f.
Henderson
EE Lasianthus oblongus King & Gamble
Henderson
Mitragyna speciosa (Korth.) Havil.
Henderson
Mussaenda villosa Wall. ex G.Don
Henderson
Nauclea subdita (Korth.) Steud.
Henderson
Neonauclea pallida (Reinwa. ex Havil.) Bakh.f.
Henderson
Ophiorrhiza communis Ridl.
Henderson
Ophiorrhiza discolor R.Br.
Henderson
Pavetta graciliflora Wall. ex Ridl.
Henderson
Porterandia anisophylla (Jack ex Roxb.) Ridl.
Henderson
E? Psychotria maingayi Hook.f.
Henderson
Psydrax sp.
Kiew RK 213
Rothmannia macrophylla (R.Br.) Bremek.
Kiew RK 1149
EE Spermacoce pilulifera (Ridl.) I.M.Turner
Henderson
Timonius wallichianus (Korth.) Valeton
Kiew RK 989
Uncaria lanosa var. glabra (Blume) Ridsdale
Henderson
Urophyllum hirstum (Wight) Hook.f.
Henderson
RUTACEAE
Glycosmis chlorosperma var. chlorosperma
Henderson
SALICACEAE
Homalium caryophyllaceum Benth.
Henderson
Osmelia maingayi King
Henderson
SAPINDACEAE
Guioa diplopetala (Hassk.) Radlk.
Symington KEP 37447
Lepisanthes tetraphylla Radlk.
Kiew RK 1141, Symington Keo 37449
Pometia pinnata J.Forst. & G.Forst.
Henderson
SAPOTACEAE
Payena lucida DC.
Henderson, Mohd Hashim FMS 37449
SIMAROUBACEAE
Eurycoma longifolia Jack
Kiew RK 990, RK 1073
SMILACACEAE
Smilax myosotiflora A.DC.
Kiew RK 1147B
STYRACACEAE
Styrax benzoin Dryand.
Henderson
THYMELAEACEAE
Gonystylus maingayi Hook.f.
Henderson
TORRICELLIACEAE
Aralidium pinnatifidum (Jungh. & de Vreise) Miq.
Henderson
URTICACEAE
Nothocnide mollissima (Blume) Chew
Henderson
Poikilospermum suaveolens (Blume) Merr.
Henderson
VIOLACEAE
Rinorea anguifera (Lour.) Kuntze
Henderson
Rinorea horneri (Korth.) Kuntze
Henderson
VITACEAE
Ampelocissus cinnamomea (Wall.) Planch.
Henderson
Cayratia mollissima (Wall.) Gagnep.
Henderson
Cayratia japonica (Thunb.) Gagnep.
Kiew RK 223
Cissus hastata Miq.
Henderson
Leea indica (Burm.f.) Merr.
Henderson
ZINGIBERACEAE
Camptandra parvula (King ex Baker) Ridl.
Kiew RK 1177, Saw FRI 34267
Etlingera littoralis (J.Koenig) Giseke
Henderson
Globba patens var. costulata S.N.Lim
Kiew RK 1082
Globba pendula var. pendula
Henderson
E Globba variabilis var. variabilis
Henderson
Zingiber gracile Jack
Kiew RK 1174