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| Ficus pongumphaii Chantaras. & Sungkaew
in Chantarasuwan, Sungkaew, Pruesapan, Baas & van Welzen, 2019.
ไทรผ่องอำไพ || DOI: 10.3767/blumea.2019.64.02.02
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Abstract
A deciduous shrub previously included in Ficus talbotii for many years, is now regarded as a new species, Ficus pongumphaii. It is morphologically distinct from F. talbotii with as typical characters the densely brown pubescent to tomentose or villous on leafy twig; the elliptic, suborbicular to obovate leaf blades that are brown tomentellous on the upper surface and brown floccose tomentose to villous underneath; the pedunculate figs are obovate, brown floccose or villous outside and have internal hairs. The leaf anatomy shows a multiple epidermis on both surfaces; enlarged lithocysts on both sides of the lamina, which are more abundant adaxially and with very few abaxially. The species, endemic to Thailand, is named after the great Thai dendrologist, Associate Professor Somnuek Pongumphai.
Keywords: Ficus; Moraceae; leaf anatomy; new species
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| Fig. 1 Ficus pongumphaii Chantaras. & Sungkaew. a. Twig with leaves and figs; b. figs; c. fig in longitudinal section; d. staminate flower; e. stamen; f. sessile pistillate flower; g. pedicelled pistillate flower (B. Chantarasuwan 180910-4, THNHM).
— Drawing: Pajaree Inthachup, 2015.
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| Fig. 2 Photos of live Ficus pongumphaii Chantaras. & Sungkaew. a. Habit in natural habitat; b–d. twigs with leaves and figs; e. fig; f. fig in longitudinal section. — Photos by Bhanumas Chantarasuwan. |
Ficus pongumphaii Chantaras. & Sungkaew, sp. nov.
Shrub, at least up to 3 m high. Leafy twig brown pubescent to tomentose to villous. Leaf lamina elliptic to suborbicular to obovate, upper surface whitish or brown tomentellous, lower surface brown floccose tomentose to villous. Fig pedunculate, basal bracts persistent, strigose. Receptacle obovate, brown floccose or villous. Synconial internal hairs present. Epidermis multi-layers. Enlarged lithocysts abundant adaxially and only few abaxially.
— Type: B. Chantarasuwan 180910-4 (holo THNHM; iso L), Thailand, Lop Buri, Thawung, Wat Khao Samorkhorn, 18 Sept. 2010.
Distribution & Habitat — A species seemingly endemic to Thailand, occurring on limestone hills at a 30–600 m elevation.
Bhanumas Chantarasuwan, Sarawood Sungkaew, Kanchana Pruesapan, Pieter Baas and P.C. van Welzen. 2019. Ficus pongumphaii (Moraceae), A New Species from Thailand, Compared with the Ambiguous Species F. talbotii. Blumea - Biodiversity, Evolution and Biogeography of Plants. DOI: 10.3767/blumea.2019.64.02.02
