BOTANY OF SOUTHERN RHODESIA. 483 
SELAGINELLA IMBRICATA, Spring. 
Victoria Falls, on the top of and lower down the cliffs of the 
lower gorge of the Zambesi River. Sept. 179. 
Distrib. Cameroons, Abyssinia, Zambesi District, and Arabia. 
Forms dense carpeting masses on the edge of the plateau. In 
drought condition the whole frond is tightly curled up, exposing 
the light under surface of the pinne. 
ManzsrLEACEX. (Mr. J. G. Baker.) 
MARSILEA CAPENSIS, A. Br. 
Matopo Hills, Malami River. Fr. Oct. 289. 
Distrib. Rhodesia, South Afriea. 
MARCHANTIACE®. 
PLAGIOCHASMA sp. (P). 
Matopo Hills, bordering streams, general. Fr, Oct. 324. 
This plant is now growing vigorously in the Chelsea Physic 
Gardens. 
RIcclace®. 
Riccra FLUITANS, Linn. 
Matopo Hills, in streams. Sept. 318. 
Distrib, Cosmopolitan. 
Fusar. (Miss Lorrain Smith.) 
HYMENOCHZTE RUBIGINOSA, Sev. 
Victoria Falls, veld, on dead wood. Sept. 262. 
Distrib. Cosmopolitan. 
POLYSTICTUS SANGUINEUS, Meyer. 
Victoria Falls, veld, on dead wood. Sept. 165. 
Distrib. Wide in the Tropics. 
Cuaracex. (Mr. Henry Groves.) 
NITELLA HYALINA, Ág. 
Matopo Hills, Malami River. Fr. Sept. 311. 
Distrib. Cosmopolitan, but very local. 
Growing in dense patches, about 3 cm. high, where the water 
runs over stones. 
