BOTANY OF SOUTHERN RHODESIA. 427 
new ; and finally the great herds of game which wander at will 
through these limitless wastes. We therefore get everything 
to promote and apparently nothing to check a very wide distri- 
bution of the same species, and, as might be expected from the 
above considerations, the trend from west to east is very marked. 
Portuguese and German South-west Africa have been very well 
worked by certain collectors, and on that aecount the prevailing 
types have been labelled Angolan because collected there for the 
first time, and the same holds for British Central aud German 
East Tropieal Africa. Every fresh collection made in South 
Central Africa and Rhodesia on the east extends the southern 
limit of Tropical eastern species and the eastern range of what 
were considered Angolan types, also gives new localities tor those 
plants which have been oftenest collected, therefore best known 
and consequently labelled general. Purely South African species, 
for the same reasons no doubt, are constantly increasing their 
northern tropical range. 
In the present case new records of Angolan types occur :— 
Gleditschia africana, Vitex flavescens, and Erlangea Schinzii, 
at the Victoria Falls; Lobelia fonticola and L. multidentata, 
two of Baum’s Kunene plants, occurred in the Matopos, with 
Euphorbia benguellensis. Melasma sessiliflorum, known from 
Angola and Mozambique, and Dyschoriste Perrottetii from Upper 
Guinea and Nileland, find a South Central record, and with 
Aischynomene cristata and Olax dissitiflora, supposed to be 
Eastern, were common at the Falls, whither also Capparis 
tomentosa extends its general distribution. 
For the Matopos, as might be gathered from the geographical 
situation, the new records are more numerous and chiefly of 
southern types. Sphedamnocarpus galphimiafolius, Pharnacium 
Zeyheri, aud Indigofera cryptantha were only known from the 
Transvaal. Loranthus Kraussianus, Plectranthus floribundus, 
and Notholena Buchanani were considered Natal ty pes, though a 
- recent specimen of the last, at Kew, establishes it for Nyassaland 
as well. 
For Cape plants the new records are Polygala rigens, Lessertia 
pauciflora, Anthospermum ciliare, and Helichrysum ericefolium, 
the last new for Rhodesia but previously collected in Ngamiland ; 
also Senecio erubescens and S. rosmarinifolius. Croton gratissimus 
is also new for Rhodesia, but has been collected in Amboland. 
