Name:

Aspidistra triradiata Vislobokov – Phytotaxa 207(3): 269. (2015).

Holotype:

 

Vietnam: Vinh Phuc province, Tam Dao district, Tam Dao National Park, about 6 km NW from Tam Dao City. 21° 29,942’ N, 105° 36,973’ E, alt. 1208 m, rainforest, 19 November 2014, N.A. Vislobokov 14098 (holotype, MW).

Specimens:

 

Paratypes: Vietnam: Vinh Phuc province, Tam Dao district, Tam Dao National Park, about 6 km NW from Tam Dao City. 21° 29,942’ N, 105° 36,973’ E, alt. 1208 m, rainforest, 24 November 2014, N.A. Vislobokov 14111a-e (MW).

Distribution:

Vietnam: Vinh Phuc province.

Phenology:

Flowers in November in nature.

Description

from 

protologue:

 

 

 

 

 

 

 

 

 

 

 

 

Herbaceous perennial, rhizomatous, evergreen plant. Rhizome creeping, with very short internodes, epigeous, Ø 8.6– 9.0 [8.8] mm. Roots grey, Ø 2.4 mm, with 2–3-layered velamen and dense hairs persistent up to root base, endoderm 2–3-layered, pericycle of cells with not lignified walls. Rhizomes with regularly repeating units, each comprising distichously arranged phylloms: 4–8 cataphylls followed by 3–5 foliage leaves. Cataphylls oblong, 8.5–16.5 [12.5] cm long, 9 mm wide. Foliage leaves not divided into petiole and lamina, leaf gradually narrowing to base. Leaf base dark to light green, adaxially sulcate, 2.7–5.2 [3.9] mm wide. Leaf blade dark to light green, linear, distally narrowly acuminate, 56–82.5 [73.3] cm long, 1.2–2 [1.6] cm wide, with 1–2 secondary veins at both sides of the midvein. The midvein prominent at lower surface and the secondary veins somewhat prominent at upper surface. Peduncle (specialized reproductive shoot) pale green with purple spots, 0.7–3.7 [2.1] cm long, Ø 2.3–3.5 [3] mm, with 3–5 widely ovate, 7.5–10.1 [8.5] mm long, 5.6–6.5 [6.1] mm wide distichously arranged scale leaves. Flower solitary at the end of a peduncle. Perigone urceolate, 18.2–23.9 [20.4] mm long, Ø 17.5–28.1 [23.1] mm; tube white with purple spots to completely purple outside, purple and verrucose inside, 15.6–18.6 [14.6] mm long, Ø 14.2–19.8 [17.1] mm; lobes 6(–7), purple spotted to completely purple at both sides, verrucose at upper side, triangular-ovate, obtuse, 7.6–10.5 [9.3] mm long, 3.9–8.3 [5.6] mm wide, lobes basally with 4 prominent verrucose longitudinal keels, 2 median keels extending down inside perigone, each lateral keel fusing with adjacent one. Stamens 6(–7), in the same number as perigone lobes, inserted at the bottom of the perigone tube, at the radii of tepals; anthers sessile, 2.5–2.8 [2.7] mm long, 2.4 mm wide, introrse. Pistil table-shaped, 6.5–8.8 [7.9] mm high (Fig. 2g). Style white, 3.1–3.5 [3.3] mm long, Ø 1.9–2.9 [2.5] mm. Stigma white with three purple radial lines and purple edge at the upper side, white at lower side, disc-shaped, papillose at the upper surface, slightly convex, Ø 11.7–15 [13.2] mm. Ovary inconspicuous, superior, 3- locular. Fruits are unknown.

Sourses:

Vislobokov (2015) – Phytotaxa 207(3): 265–272.

Gallery: