Corresponding author: Lin-Dong Duan (
Academic editor: Xiao-Hua Jin
A new species,
Zhou S-S, Li R , Quan R-C, Shine L, Duan L-D (2020)
The genus
The Natma Taung (Mt. Victoria) National Park is located in the south-western part of Myanmar. Mount Victoria is the highest mountain in this region and has been regarded as an ecological refugium, offering a temperate zone that is absent from neighboring regions (
A morphological description (
Diagnostic morphological characters of
Characters |
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Leaf | principal veins flat on both sides of leaf blade; stipules subulate, 4–6 mm long | principal veins raised on both sides of leaf blade; stipules broadly triangular, 2–4 mm long |
Inflorescence | inflorescence fasciculate, 3- or 4-flowered; peduncle glabrous; bracts linear, ca. 1 mm long, glabrous | inflorescence axillary, 1-flowered; peduncle puberulous; bracts lanceolate to subulate, 1–2mm long, puberulous |
Flower | calyx puberulent to glabrescent, 3–4 mm long; lobes slightly longer than calyx tube; corolla funnelform, 11 mm long, glabrate outside | calyx pilose,1–2 mm long, lobes and tube equal in length; corolla narrowly funnelform, 15 mm long, puberulous outside |
MYANMAR. Chin State. Natma Taung (Mt. Victoria) National Park, under evergreen broad-leaved forest in tropical mountainous areas forest, 2500–2600 m, 18 July 2018, Shi Shun-Zhou 15305 (holotype: RAF!; isotype: HITBC!, Herb. Bar. Code No. 169316).
Herbs, creeping to weakly ascending, 15–30 cm tall; stems drying purplish brown, puberulous. Petioles 0.5–1 cm long, puberulous; leaf blade drying membranous to papery, adaxially green, abaxially grayish-green, broadly ovate or elliptic, 2–4 × 1–2.5 cm, adaxially scattered puberulous, abaxially moderately puberulous along principal veins, base obtuse, apex acute; secondary veins 4–5 pairs; stipules broadly triangular, 2–4 mm long, glabrous. Inflorescences axillary, 1-flowered; peduncle puberulous, 6–8 mm long; pedicel ca. 2 mm long, puberulous; macrostylous: bracts lanceolate to subulate, 1–2mm, puberulous. Calyx pilose, 1–2 mm; hypanthium 5-ribbed; lobes lanceolate; lobes and tube equal in length. Corolla white, 15 mm long, narrowly funnelform, puberulous outside, pilose inside; tube densely villous in throat; lobes triangular-lanceolate, 3–3.5 mm long, dorsally ribbed at least in bud. Stamens reaching the tube throat; anthers linear; style reaching the tube mouth; Capsules obcordate, ca. 2 × 4.5 mm.
The new species was named after Mountain Victoria, Natma Taung National Park, Chin State, southwestern Myanmar, where it was discovered in a vast area of mountain forest.
Flowering in July to August, fruits in August to September.
The new species most resembles
The authors are grateful to the Forest Research Institute of Myanmar for their support and collaboration of this study in Myanmar. Local staffs from Natma Taung National Park and nearby villagers are also thanked for their help during the field survey. This work was financially supported by the Southeast Asia Biodiversity Research Institute (SEABRI), Chinese Academy of Sciences (Grant No. Y4ZK111B01), the Education Department in Hunan Province (grant No. 16A194), and the reviewers are thanked for their important and useful suggestions for the manuscript.