Marsilea gibba A. Br.

Fischer, Eberhard & Lobin, Wolfram, 2024, Checklist of Lycopodiopsida (clubmosses and quillworts) and Polypodiopsida (ferns) of Rwanda, Willdenowia 53 (3), pp. 149-172 : 162-163

Marsilea gibba A. Br.

First recorded — Pichi Sermolli (1983: 241).

+ Marsilea minuta L. var. minuta

New record — RWANDA: EASTERN PROVINCE: Bugesera , Nyamata, seasonal shallow ponds on ferricretes, 02°07'00.91''S, 30°04'07.67''E, 1415 m, 9 Jan 2012, E. Fischer s.n. (KOBL); Mpanga, seasonal shallow ponds on ferricretes, 02°04'56.65''S, 30°46'39.96''E, 1310 m, Oct 1985, E. Fischer; Akagera NP, near Lake Ihema, 1 Oct 2013, E. Fischer s.n. (KOBL) .

Note — Pichi Sermolli (1983) cited a specimen of Marsilea sp. cf. M. minuta L. from eastern Rwanda (piste Gabiro-Gatsibu, km 7, marais Kibondu, env. 1500 m, Van der Veken 10691 [BR0000017596121!]). The specimen is sterile and unidentifiable. There are four additional sterile specimens at BR.

Roux (2009: 56) listed Rwanda under Marsilea minuta , but did not mention a published record. Therefore, our collections from Rwanda represent the first definite record of the species.