884 THE JOURNAL OF BOTANY 
Species non satis note et exclusa. 
I. albicans R. Br. in Salt App. p. 65, nomen = Tephrosia nubica 
Baker. 
I. angolensis D. Dietr. Syn. Pl. iv. p. 1036. 
I. clitorioides G. Don, Gen. Syst. 11. p. 206. 
I. emarginata G. Don, lL. c. p. 209 
WAYFARING NOTES FROM THE TRANSVAAL.—III. 
By R. Frayx Rann, M.D., F.L.S. 
Jonannespure: March 16, 1908.— Writing in autumn, one 
may look back eee on weather wer ‘which have prevailed 
during the past su One s that, summer, when 
rains and siti dewstbritia are Harneie ae relative Aira) con- 
tinues to be low. The difference between the dry and wet bulbs of 
the Sinesisnimaten is usually at least 10° Fahr., i more, this 
with the dry bulb temperature in the neighbourhood of 80° Fahr. 
Thunderstorms and rain show a tendency to beat up towards 
evening, the mornings being ibatly fine. 
n one considers the altitude, about 5,700 ft., the high 
temperature, the air-movement, he situation, typically continental, 
one realizes how en normous must be the ee: from a leaf of 
he plants of the open veld ae aha prone against comes 
transpiration in one or other of the well-known ways, 
Seeteace of them. Briefly, by narrowing oe area of their 
anspiration surfaces, Sete the aaaes of their stomata, and 
by oye their coats and their jui 
narrow, linear type of leaf, Seine with rolled edges, abounds 
in sinige different orders, for it has the advantage that it offers little 
surface to the vod in The lithe stems of these linear-leaved plants 
