Hypodematium chrysolepis (Fée) X.P. Fan & Li Bing Zhang 2021

Fan, Xue-Ping, Lu, Ngan Thi, Zhang, Liang & Zhang, Li-Bing, 2021, Hypodematium chrysolepis comb. nov. from Africa and H. eglandulosum sp. nov. from Asia (Hypodematiaceae), Phytotaxa 524 (2), pp. 99-106 : 103

Hypodematium chrysolepis (Fée) X.P. Fan & Li Bing Zhang , comb. nov. ( Fig. 3 ).

Basionym: Aspidium chrysolepis Fée (1855: 107) .

Type:— CAPE VERDE. Weeb s.n. (RB-00543196!) .

Notes:—This species is similar to Hypodematium crenatum ( Forsskål 1775: 185) Kuhn & Decken (1879: 37) in having 4-pinnatifid and pentagonal-ovate laminae but differs from the latter in having laminae and stipes densely covered with acicular and glandular hairs, and lobes smaller (1–2 × 1–2 mm) and with numerous serratures.

This species was resolved in the Hypodematium crenatum Clade, and is closely related with H. crenatum in our phylogeny (Fan et al., in press).

Distribution & habitat:— Hypodematium chrysolepis is distributed in Cape Verde Islands. It grows in limestone crevices at elevations of 200–1000 m.

Additional specimens examined:— CAPE VERDE. Brava: S of Cachaco, Monte Miranda, 24°42’ N, 14°49’ W, elev. 650 m, 25 February 1982, C. Brochmann & Ø. H. Rustan CB1185-82 ( O!) . Santiago: São Jorge dos Orgaos, Mato Gasela, elev. 800 m, 15 November 1987, G. Gardoso de Matos 6288 ( MA!) . Santo Antão: Ribeira das Pedras, 17°8’46’’ N, 25°4’8’’ W, elev. 200 m, 6 November 1976, P. Sunding 3425 ( O!) .

Figures

FIGURE 3. Hypodematium chrysolepis (Fée) X.P. Fan & Li Bing Zhang.—A. Habit.—B. Rhizome and scales.—C. Portion of stipe and pinna.—D. Portion of adaxial lamina.—E. Portion of adaxial pinnule (based on the holotype).