Compilation
Arachniodes webbiana

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Name

Identification
Arachniodes webbiana (A.Braun) Schelpe [family DRYOPTERIDACEAE ] (stored under name); Verified by Burrows, J.E.,
Related name
  • Polystichum frondosum
  • Aspidium laetevirens
  • Aspidium frondosum
  • Arachniodes webbiana

Flora

Entry for Arachniodes webbiana (A.Braun) Schelpe [family DRYOPTERIDACEAE]
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora of Tropical East Africa
Resource Type
Reference Sources
Entry From
Flora of Tropical East Africa, page 1, (2007) Author: J.P. Roux, Monika Shaffer-Fehre & Bernard Verdcourt
Names
Arachniodes webbiana (A.Braun) Schelpe [family DRYOPTERIDACEAE], in Bol. Soc. Brot. sér. 2, 41: 203 (1967); J.P. Roux, Consp. S. Afr. Pterid.: 127 (2001). Type: Madeira, ad Sanctum Annam et Sanctum Vincentem, sine coll. (B90924, holo.) (fide J.P. Roux)
Aspidium webbianum A. Braun [family DRYOPTERIDACEAE], in Flora 24: 711 (1841)
Information
Rhizome creeping, 60–90 cm long, up to 7 mm in diameter, set with brown, linear-attenuate entire rhizome-scales up to 6 mm long. Fronds spaced, arching, firmly herbaceous, 35–90 cm tall; stipe stramineous, densely scaly basally, up to 50 cm long; lamina broadly ovate-triangular, up to 45≈30 cm, acuminate, 4-pinnatifid basally, 2-pinnatifid above, the basal pinnae largest and much developed basiscopically; rachis straw-coloured, set with scattered scales; upper pinnae narrowly lanceolate-attenuate; basal pinnae unequally and broadly ovate-triangular, up to 19 cm broad; ultimate pinnatifid segments narrowly rhombic and strongly aristate-dentate, glabrous except for hair-pointed ovate-lanceolate scales along costae and costules, and smaller hair-like scales scattered along veins. Sori up to 1 mm in diameter; indusium entire, minutely papillose, but in some specimens very deciduous and whole fronds may reveal very few or even none at certain stages. Fig. 15.

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