Aspidistra cryptantha

Aspidistra cryptantha is a species of flowering plant. A. cryptantha grows in evergreen on slopes of limestone mountains in Vietnam between heights of 600 and 800 metres (2,000 and 2,600 ft).[1]

Aspidistra cryptantha
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Asparagaceae
Subfamily: Nolinoideae
Genus: Aspidistra
Species:
A. cryptantha
Binomial name
Aspidistra cryptantha
Tillich, Averyanov & Dzu, 2007

Description

This species is a perennial herb. Its rhizome is creeping, with a diameter of 5 millimetres (0.20 in). Its cataphylls are short-lived, leaving remnants at the base of young leaves. Its leaves are delicate, 1 to 1.5 millimetres (0.039 to 0.059 in) apart, the petiole measuring about 18 to 25 centimetres (7.1 to 9.8 in); the lamina is ovate-lanceolate and acuminate, measuring 17 to 20 centimetres (6.7 to 7.9 in) by 5 to 6 centimetres (2.0 to 2.4 in), and being rounded and cuneate, with several white spots and yellowish nerves in its lower surface. It also counts with 4 to 6 veins at each side.[1]

Its ascending peduncle measures 1 to 2 centimetres (0.39 to 0.79 in); its perigone tube is subgloboid, its greatest diameter measuring up to 7 millimetres (0.28 in), counting with 6 lobes with 2 keels. Its anthers amount to 6 and are subsessile, each up to 1 millimetre (0.039 in) long; the pistil is flat and rectangular, the ovar is indistinct. The style is cylindrical, 2 to 3 millimetres (0.079 to 0.118 in) long, while the stigma is flat and measures 2 to 3 millimetres (0.079 to 0.118 in) in diameter and is 3-lobed, each lobe with a distal lobulum inflexum.[1]

Distribution

Aspidistra cryptantha is known only from its type locality, in Trà Lĩnh District, Cao Bằng Province, Vietnam.[1]

References
  1. Tillich, H.-J.; Averyanov, L.V.; Dzu, N.V. (2007). "Six new species of Aspidistra (Ruscaceae) from northern Vietnam". Blumea - Biodiversity, Evolution and Biogeography of Plants. 52 (2): 335–344. doi:10.3767/000651907X609070. ISSN 0006-5196.

Further reading
  • Tillich, H‐J. "An updated and improved determination key for Aspidistra Ker‐Gawl.(Ruscaceae, Monocotyledons)." Feddes Repertorium 119.5‐6 (2008): 449–462.
  • Tillich, Hans-Juergen. "The genus Aspidistra Ker-Gawl.(Asparagaceae) in Vietnam." Taiwania 59.1 (2014): 1–8.


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