Compilation
Trichomanes borbonicum

11 Images see all

Previous
Next

Name

Identification
Trichomanes borbonicum Bosch [family HYMENOPHYLLACEAE ] (stored under name);
Related name
  • `
  • Trichomanes borbonicum

Flora

Entry for Crepidomanes ramitrichum (R.B.Faden) Beentje [family HYMENOPHYLLACEAE]
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, (2008) Author: Henk Beentje
Names
Crepidomanes ramitrichum (R.B.Faden) Beentje [family HYMENOPHYLLACEAE], comb. nov. Type: Kenya, Kericho District: SW Mau Forest, Kipteget R., June 1972, Faden & Grumbley 72/338 (EA!, holo., B, BM, BOL, BR!, DSM, GH, K!, LISC, LMU, MHU, MO, P, PRE, SRGH, US, WAG, iso.)
Trichomanes borbonicum [family ], sensu Schelpe, F.Z. Pterid.: 76 (1970), pro parte
Trichomanes pyxidiferum var. melanotrichum [family ], sensu Schelpe, F.Z. Pterid.: 78 (1970), pro parte, non (Schltdl.) Schelpe
Trichomanes sp. A [family ], of U.K.W.F. ed. 1: 29 (1974)
Trichomanes ramitrichum R.B.Faden [family ], in Amer. Fern J. 67(1): 5, fig. 1–5 (1977)
Information
Low epiphyte or lithophyte; rhizome filiform, covered in dark brown trichomes to 1.5 mm, some of these branched. Fronds spaced up to 2 cm apart; stipe dark green, blackish at base, 2–25 mm long, winged in upper part, with scattered minute clavate hairs; lamina ovate to linear in outline, 2–14x0.8–3 cm, flabellately divided or 2–3-pinnatifid, ultimate segments linear; longitudinal drying folds present; glabrous except for some minute hairs on the veins. Sori terminal on basal acroscopic pinnule lobes, sometimes also on (sub)terminal pinna lobes; indusium tubular, 2–2.5 mm long, winged, mouth bilabiate, usually not spreading; receptacle exserted. Fig. 10: 3–5, p. 23.
Range
DISTR. U 2; K 5, 7; T 3, 6
Altitude range
750–2150 m
Distribution
KENYA North Kavirondo District Malava forest, W side of Kakamega–Broderick Falls road, Nov. 1969, Faden & Evans 69/2045a!KENYA Kericho District Marinyn Tea Estate, 4 km SSE of Kericho, June 1972, Faden et al. 72/325!KENYA Teita District Msau–Mbololo road, Mwambirwa Forest Station, Sep. 1970, Faden et al. 70/524!TANZANIA Lushoto District Derema, Hunga R., Mar. 1974, Faden & Faden 74/362! & Gonja, Bulua, Sep. 1893, Holst 4288!TANZANIA Morogoro District Mindu Mts, Apr. 1970, Pócs 6152/U!UGANDA Toro District Itwara forest near Sogoli R., Jan. 1997, Lye & Katende 22170!UGANDA Kigezi District Ishasha Gorge, Sep. 1969, Faden 69/1194! & Impenetrable Forest, Sep. 1961, Rose 10262!
Distribution (external)
Congo-Kinshasa
Rwanda
Burundi
Zambia
Mozambique
Zimbabwe
Notes
USES. None recorded. CONSERVATION Widespread; least concern (LC). Fronds closely resemble those of C. melanotrichum and Polyphlebium borbonicum. This taxon differs in the branched trichomes on the rhizome and the shape of the indusium. I am not sure whether this actually warrants specific status – but I am also unwilling to meddle with the status quo based on slight doubts! A Mascarene taxon is rather close: Crepidomanes frappieri (Cordem.) J.P.Roux, Conspect. southern Afr. Pteridoph.: 45 (2001). Type: Reunion, sine loco, sine collectore (not found). Neotype: Reunion, Brule de St Denis, 1891, Bedier s.n. (P!, holo.), chosen by Pic.Serm.; synonym Vandenboschia frappieri (Cordem.) Pic.Serm. in Webbia 37: 131 (1983). As its basionym is Trichomanes frappieri Cordem. in Bull. Soc. Sci. Arts Reunion 1890–91: 143 (1891); Kornaś in Fragm. Florist. Geobot 39: 62, fig. 23 (1994), this epithet would have priority. Again, I am unwilling to meddle with the status quo.

Related Materials