28o APPENDICES 



spread tropical species. Acacia Catechu and Ipomcea 

 VVightii are of Eastern affinity, occurring in Tropical 

 Asia, but not passing into West Tropical Africa. 

 Others are more or less widely spread Tropical African 

 or Tropical South African species, as Pavonia macro- 

 phylla, Vernonia cinerascens, Ruellia patula, and 

 Ornithogalum Eckloni. Other species are East Tropical 

 African, such as Grewia sunilis and Hibiscus cethiopicus ; 

 while Hibiscus crassinervis, Jasminum Schimperi, and 

 Barleria grantii are more northern * Nile Land ' types, 

 and Mellera lobulata and Lissochilus Livingstonianus of 

 more southerly distribution (Uganda, the Mozambique 

 District, and British Central Africa), A western 

 affinity is represented by Spathodea campaniilata, a 

 West Tropical African species, which finds the eastern 

 limit of its distribution on Ruwenzori ; Thimbergia 

 fasciculata, a Cameroons plant ; and Mucuna Poggei. 

 Schizoglossiim eximiimi is restricted to Ruwenzori, and 

 the following are new species : Aloe IVollastoni, 

 Chlorophytum ruwenzoriensis^ and Baphia WoUastoni. 



4,000 to 5,000 feet : About this level there is a good 

 deal of native cultivation, chiefly bananas, manioc, 

 Indian corn, and beans. At this altitude the huge 

 'elephant-grass,' growing from 10 to 15 feet high, is 

 the most important feature of the vegetation, and 

 conspicuous among it are the pretty little trees of 

 Erythrina tomentosa, with tufts of crimson flowers. 



The following were collected at 5,000 feet : Tephrosia 

 paniculata (Angola and Uganda) ; Fleurya podocarpa^ 

 a widely spread Tropical African species ; Crinum 

 scabrum, a more northern type (Abyssinia and the 

 Nile Valley); and a new composite, Guizotia collina. 



5,000 to 6,000 feet : Cultivation and elephant-grass 

 still continue, with species of Ipomcea climbing about 

 the stems of the grass, and the very handsome red- 

 and-yellow Gloriosa virescens, which is found up to 



