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| Aspidistra heterotepala T.C. Hsu & Luu, in Hsu, Luu & Li, 2022. |
Abstract
A new species of Aspidistra (Asparagaceae) from Southern Vietnam, A. heterotepala T.C. Hsu & Luu (Asparagaceae), is described and illustrated. A. heterotepala is similar to A. ventricosa Tillich & Škorničk. but distinguishable by the significantly narrower leaves, ellipsoidal perigone tube and adaxially whitish, sub-heteromorphic perigone lobes. Available data on its distribution, ecology and conservation status are also presented.
Keyword: Aspidistra ventricosa, Flora of Indochina, Lang Biang Biosphere Reserve, Ninh Thuan Province, Nolinoideae
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| Morphology of Aspidistra heterotepala T.C. Hsu & Luu, from Hsu 10951. A. Habitat and habits. B. Flowering habit. C. Leaves. D–F. Flowers. G–K. Flowers along with peduncles. L. Uppermost bract. M–N. Perigone lobes, showing two inner lobes at sides and one outer lobe in middle. O–Q. Flower with longitudinally sectioned perigone. R–T. Flower with cross sectioned perigone. U–Y. Pistils. Z–BB. Stamens. Photographed and designed by T.C. Hsu. |
Aspidistra heterotepala T.C. Hsu & Luu, sp. nov.
Diagnosis: Similar to Aspidistra ventricosa Tillich & Škorničk. in the shape and coloration pattern of perigones, but clearly distinguishable by its significantly narrower (2–4.5 vs. 4.5–9 cm) leaves, ellipsoid (vs. broadly ovoid) perigone tubes widest near the middle (vs. near the base), and adaxially whitish (vs. dark purplish), subheteromorphic (vs. homomorphic) perigone lobes
Distribution: Endemic to southern Vietnam (Khanh Hoa Province; Fig. 2). Habitat and phenology: Growing under semi-arid broadleaved forest between 100–200 m ca. 1 km away from the coast. Flowering observed in September and October; fruiting observed in April.
Etymology: The specific epithet refers to the heteromorphy between the inner and the outer lobes of the perigone. Suggested Vietnamese name: “Tỏi rừng Hòn Hèo”.
Tian-Chuan Hsu, Hong Truong Luu and Chia-Wei Li. 2022. Aspidistra heterotepala (Asparagaceae), A New Species from southern Vietnam. Taiwania. 67(1); 21 - 24