282 APPENDICES 



A large number of species were collected at 7,000 

 feet, the majority of which are more or less widely 

 distributed in the highlands of Tropical Africa. Of 

 these a minority occur on both sides of the Continent; 

 such are Pavonia Schimperiana (Abyssinia to Cameroons 

 and Angola), Cassia didymobotrya (East Africa and 

 Angola), and Plantago palmata (Kilimanjaro to Came- 

 roons). Twice as many are restricted to Eastern 

 Africa, including the Central Lake district. Of these, 

 some have a northward range, generally as far as 

 Abyssinia, while others have a more southern or 

 restricted distribution, and there are also the endemic 

 species, Vernonia ritwenzoriensis, Lissochilus rttwen- 

 zoricnsis, and Satyrium crassicaide. At this altitude 

 were also collected the north temperate species, Sani- 

 cula europoea and Orobanche minor. The following 

 novelties were found : Begonia Wollastoni (allied to 

 B. Johnstoni, from Kilimanjaro and Kenia), Pentas pubi- 

 flora^ var. longistyla, Pavetta ruwenzoriensis, Gnunilea 

 megistosticta, Vernonia Wollastoni, Conyza scariosa, 

 Senecio Wollastoni, Plectranthiis Wollastoni, Peperomia 

 ruwenzoricnsis, and Polystacha bicarinata. 



Between 7,000 and 8,000 feet is found the biggest 

 forest of Ruwenzori. A large Donibeya with clusters 

 of white flowers is very noticeable, and one of the 

 finest trees, though not very numerous, is a Podocarpus. 

 A sweet-scented begonia (probably Begonia Meyeri- 

 Johannis) is found climbing about the lower trunks, 

 and tree-ferns occur in shady places and on the banks 

 of the streams. 



At 8,000 feet were collected the widely spread 

 Tropical African highland species, Stachys aculeolata 

 (Cameroons, Fernando Po, and Abyssinia) and Habe- 

 naria Rendlci ; also Hibiscus diversifolins, var. grana- 

 tensis, a Tropical South American variety which is also 

 recorded from Uganda. 



