Bolbitis fluviatilis (Hook.) Ching, Index Filic. Suppl. Tert. 48 (1934)

Kuetegue, Felix, Sonke, Bonaventure & Ameka, Gabriel K., 2019, A checklist of rheophytes of Cameroon, PhytoKeys 121, pp. 81-131: 81

publication ID

http://dx.doi.org/10.3897/phytokeys.121.29924

persistent identifier

http://treatment.plazi.org/id/69751EB4-04D4-9B08-1BE4-8911CAD2B8F9

treatment provided by

PhytoKeys by Pensoft

scientific name

Bolbitis fluviatilis (Hook.) Ching, Index Filic. Suppl. Tert. 48 (1934)
status

 

Bolbitis fluviatilis (Hook.) Ching, Index Filic. Suppl. Tert. 48 (1934)  

Acrostichum fluviatile   Hook., Sp. Fil. 5: 274 (1864)

Acrostichum phanerodictyon   Baker, Bol. Soc. Brot. 4: 156, t. 2 (1886)

Leptochilus fluviatilis   (Hook.) C.Chr., Index Filic. 10, 385 (1905)

Type.

Equatorial Guinea, Fernando Po (Bioko), G. Mann 442 (K, K000435773).

Description.

Herbaceous, rhizome creeping, with opaque, castaneous scales; fixed to rocks by roots; sterile fronds lanceolate, up to 85 cm long; fertile fronds up to 90 cm long with sporangia on lower surface.

Specimens examined.

15 km southeast of Zingui, 14 Mar 1968, R. Letouzey 9031 (YA); near Ababendoman, 65 km southeast of Ebolowa, 00 Jan 1970, R. Letouzey 9958 (YA); Muanenguba Mts. northeast of Nkongsamba, 4°58'N, 9°53'E, 11 Dec 1971, A. J. M. Leeuwenberg 8848 (YA).

Habitat.

Rocky riverbeds and streams, and rocky borders of streams and rivers; in evergreen rainforest.

Distribution.

Cameroon (Fig. 2 View Figures 2–10 ), Democratic Republic of Congo, Gabon, Ghana, and Liberia.

Conservation status in Cameroon.

Bolbitis fluviatilis   is not listed on http://www.iucnredlist.org nor in Onana and Cheek (2011). The species is currently known from five localities. The extent of occurrence (EOO) is more than 20,000 km2, and the area of occupancy (AOO) is about 20 km2. Some collecting localities of the species are within the Cameroon Development Corporation (CDC) palm tree plantations, and other localities are proposed for plantation development. Based on this threat, extent and/or quality of the habitat of the species B. fluviatilis   is here assessed as Endangered. IUCN Red List Category: Endangered ENB2ab (ii, iii).

Kingdom

Plantae

Phylum

Tracheophyta

Class

Polypodiopsida

Order

Polypodiales

Family

Lomariopsidaceae

Genus

Bolbitis

Loc

Bolbitis fluviatilis (Hook.) Ching, Index Filic. Suppl. Tert. 48 (1934)

Kuetegue, Felix, Sonke, Bonaventure & Ameka, Gabriel K. 2019
2019
Loc

Acrostichum phanerodictyon

Bak 1886
1886
Loc

Acrostichum fluviatile

Hook 1864
1864