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Research Article
A reappraisal of Adinobotrys Dunn (Fabaceae) with two new combinations
expand article infoJames A. Compton, Brian D. Schrire§
‡ Spilsbury Farm, Tisbury, United Kingdom
§ Royal Botanic Gardens, London, United Kingdom
Open Access

Abstract

Two new species from Borneo that have been described in the genus Callerya are shown here to belong in Adinobotrys. The new combinations A. katinganensis and A. sarawakensis have consequently been made, bringing the total number of species in the genus to four. A morphological key and taxonomic conspectus is provided for all species.

Keywords

Adinobotrys, Callerya, Leguminosae, morphological key, Tribe Wisterieae

Introduction

Schot (1994: 15) included Pongamia atropurpurea Wall., in her revision of the genus Callerya Endl. (Endlicher 1843) as Callerya atropurpurea (Wall.) Schot., the species having already been segregated from Millettia (Wight & Walker-Arnott 1834) and Padbruggea Miq. (Miquel 1855) into the genus Adinobotrys Dunn, on the basis of apparently having a stipitate ovary and one-seeded pods (Dunn 1911: 194). Schot regarded Adinobotrys to be synonymous with Padbruggea Miq. The distinction between Adinobotrys and the genera Padbruggea and Whitfordiodendron Elmer, 1910 was fully discussed in Compton et al. (2019: 35). Adinobotrys was typified on the species A. atropurpureus (Wall.) Dunn by Geesink (1984: 83) based on Pongamia atropurpurea Wall. (Wallich 1830).

Research based on morphology, NrDNA and CpDNA sequence data has led to the redefinition of the Callerya Group of genera within the Inverted Repeat-lacking clade (IRLC) of legumes as an enlarged Tribe Wisterieae Zhu (Zhu 1994) comprising 36 species within 13 genera (Compton et al. 2019). The same research revealed that the genus Adinobotrys (Dunn 1911) was sister to Glycyrrhiza L., (Linnaeus 1753) and Tribe Wistereae and that another tree species Callerya vasta (Kosterm.) Schot, also belonged in Adinobotrys (Compton et al. 2019: 20).

Adinobotrys as circumscribed by Compton et al. (2019) comprised two species; A. atropurpureus (Wall.) Dunn and A. vastus (Kosterm.) J.Compton & Schrire. Adema (2019) has subsequently described two new tree species in Callerya sens.lat. (Schot 1994) from Borneo, which are placed here in Adinobotrys, bringing the total to four species.

Several morphological characters separate Adinobotrys from Callerya sens.str. (Compton et al. 2019: 35): Adinobotrys comprises species of evergreen trees (vs. lianes in all genera of Tribe Wisterieae); its bracteoles are persistent, placed on the calyx (vs. mostly caducous and placed on the pedicel in Callerya sens.str.); its standards are glabrous (vs. sericeous in Callerya sens.str.) and its wing petals are ± equal to the keel in length (vs. much shorter than the keel in Callerya sens.str.).

Although the position of Adinobotrys with respect to its sister genus Glycyrrhiza and the other genera in tribe Wisterieae is not yet fully resolved (see discussion in Compton et al. 2019), it is nevertheless fully supported in being excluded from Tribe Wisterieae and is morphologically distinct from Callerya sens.str. as noted above. Accordingly we make the two new combinations here in Adinobotrys with a new key emended from Adema (2019).

Taxonomic conspectus

Adinobotrys Dunn, Bull. Misc. Inform. 1911: 194 (1911)

Millettia Sect. Nothomillettia Miq., Fl. Ned. Ind., Eerste Bijv. 2: 301 (1861).

Millettia subgen. Nothomillettia (Miq.) Kurz, J. Asiat. Soc. Bengal, Pt. 2, Nat. Hist. 45(2): 273 (1876).

Key to species of Adinobotrys

1 Leaves with 5–9 leaflets, lateral leaflets ± equal-sided at base; flowers 12–17 mm long; pod not inflated, flattened, narrowly elliptic to narrowly obovate; seeds 2–4, flattened lenticular, 3–9 mm thick (unknown for A. vastus) 2
Leaves with 7–11 leaflets; lateral leaflets oblique at base; flowers 17–20 mm long; pod inflated, elliptic to obovate, 7–20 × 3–6 cm; seeds 1–2, ovoid, 20–26 mm thick A. atropurpureus
2 Indumentum grey; bracteoles at base of calyx 3
Indumentum brown; floral bracts 1.6 mm long; bracteoles halfway along calyx; pod 14–23 × 2.5–3 cm A. katinganensis
3 Floral bracts 2.8–5 mm long; calyx sericeous; disk c. 2 mm high; pod 19–24 × 2.5 cm A. sarawakensis
Floral bracts 1.2 mm long; calyx almost glabrous; disk c. 0.5 mm high; pod 23–24 × 4–4.5 cm A. vastus

Adinobotrys atropurpureus (Wall.) Dunn, Bull. Misc. Inform. 1911(4): 194 (1911)

Pongamia atropurpurea Wall. Pl. As. Rar. 1(4): 70 t. 78 (1830). Type: Myanmar. “Martaban [Mottama] ad Amherst [Kyaikkami] 15 July 1827”, Wallich Cat. No. 5910, holotype K! [K-000881026]; isotypes BM! [BM-000997335]; BO n.v.; CAL x 2 n.v.; P! [P-02141756]

Millettia atropurpurea (Wall.) Benth. Pl. Jungh. [Miquel] 2: 249 (1852).

Phaseoloides atropurpureum (Wall.) Kuntze, Revis. Gen. Pl. 1: 201 (1891).

Whitfordiodendron atropurpureum (Wall.) Dunn, Bull. Misc. Inform. Kew 1912(8): 364 (1912).

Callerya atropurpurea (Wall.) Schot, Blumea 39(1–2): 15 (1994).

= Millettia paniculata Miq., Fl. Ned. Ind., Eerste Bijv. 2: 301 (1861). Type: Indonesia, Sumatra “Sumatra orient. in prov. Palembang prope Kebur Lahat (T.)” 3675 H.B. Leguminosae, Masiboengan, Hortus Botanicus 023149 Utrecht, J.E.Teijsmann s.n., holotype U! [U-0003669].

= Padbruggea pubescens Craib, Bull. Misc. Inform. Kew 1927(2): 61 (1927) Type: Thailand, Prov. Nakawn Panom [Nakhon Phanom], Ta Uten, elev. 1200 m, 15 February 1924, tree, fls pink. Ki Mo., A.F.G.Kerr 8457, holotype K! [K-000881016]; isotypes ABD n.v.; BM! [BM-000997332]; E! [E00275433].

Whitfordiodendron pubescens (Craib) Burkill, Bull. Misc. Inform. Kew 1935(5): 319 (1935).

Callerya atropurpurea (Wall.) Schot var. pubescens (Craib) P.K.Lôc, Bot. Zhurn. (Moscow & Leningrad) 81(10): 98 (1996).

Illustrations

Lôc and Vidal in Fl. Cambodge, Laos & Vietnam 30: 34, t. 8 [9 – 11] (2001). https://singapore.biodiversity.online (in Home Page enter Callerya atropurpurea).

Distribution

Cambodia; India; Indonesia (Java, Sumatra); Laos, Malaysia (Malay Peninsula); Myanmar; Thailand and Vietnam.

Habitat

A component of evergreen forests from sea level to 1200 m.

Adinobotrys katinganensis (Adema) J.Compton & Schrire, comb. nov.

Callerya katinganensis Adema, Blumea 64(3): 275 (2019). Type: Indonesia, Borneo, Kalimantan, Upper Katingan river, c. 96 km west of Batu Badingding, K. T. C. logging area west of base camp, elev. c. 200 m. 20 December 1982. J.P.Mogea 4276 holotype L! [L-0772470]; isotype L! [L-0772469]; BO n.v.

Note

For a full description, details of habitat and ecology see Adema (2019: 275).

Adinobotrys sarawakensis (Adema) J.Compton & Schrire, comb. nov.

Callerya sarawakensis Adema, Blumea 64(3): 276 (2019). Type: Malaysia, Borneo, Sarawak, third division, Bukit Raya, Kapit elev. 300 m. 26 November 1963. P.P.K.Chai S-18911 holotype L! [L-0772465]; isotypes BO! [BO-1711732]; BO! [BO-1714048]; KEP! [KEP-195256]; MEL n.v.; SING! [SING-0263900]; SING! [SING-0263901].

Note

For a full description, details of habitat and ecology see Adema (2019: 276).

Adinobotrys vastus (Kosterm.) J.Compton & Schrire, Phytokeys 125: 50 (2019)

Millettia vasta Kosterm., Reinwardtia 5: 349 (1960). Type: Indonesia, Kalimantan [Borneo], Belajan River near Muara Lempong, June 1956, A.J.G.H.Kostermans 12516A, holotype BO! [BO-1249898]; isotypes BM! [BM-000997327]; K! [K-000880991]; L! [L-0018805]; P! [P-03081895]

Callerya vasta (Kosterm.) Schot, Blumea 39(1–2): 36 (1994).

Distribution

Borneo: Brunei; Indonesia (Kalimantan); Malaysia (Sabah, Sarawak).

Habitat

Component tree in woods and forests from sea level to 250 m.

Acknowledgements

Thanks to Deby Arifiani (BO), Richard Chung (KEP), Boon Chuan Ho and Derek Liew (SING) for locating and providing images of type material of Callerya sarawakensis. Thanks to Gwilym Lewis and Patrick Herendeen for helpful review comments.

References

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