20 
Transactions of the Royal Society of South Africa. 
Society shortly. The arrangement of the orders is in accordance with 
Engler's system. 
With few exceptions, I have abstained from any reference to the 
occurrence, if any, of our genera outside temperate South Africa, as this 
can easily be gleaned from the work of Thonner, ' Die Bliitenpflanzen 
Afrikas,' now available in an English translation, and other works of a 
similar nature, besides works of greater magnitude. I would have preferred 
to have dealt separately with the genera belonging to different divisions of 
orders, and it would further have been valuable to have dealt with subgenera 
and series of species in each genus. Perhaps somebody with more leisure 
than I can command will take the hint, and give us, at no distant date, a 
more elaborate account, in which altitudes, ecological zones, geological 
formations, and similar points are also carefully taken into consideration. 
GYMNOSPERMAE. 
. CYCADALES. 
Cycadaceae. 
The Uiteuhage district is not far from the western limit of the 
Cycadaceae in South Africa. Stangeria Th. Moore is endemic from Natal 
to Tharfield, east of Port Alfred. The only other South African genus,. 
Encephalartos Lehm., extends a little west of the XJit. div. A line half-way 
between the 23rd and 24th degrees of longitude to the neighbourhood of 
Willowmore is, according to Dr. Rattray, approximately the boundary. 
CONIFERAE. 
Pinaceae. 
The only South African genus, Widdriyigtonia Endl., occurs from Clan- 
william along the coast districts to mountains of the eastern parts. Yarious. 
species of Finns L. have become naturalised in parts of South Africa^ 
e. g. Pinus Pinaster on the hills south of Grahamstown. 
Taxaceae. 
Podocarpus L'Her., found from Clanwilliam and the Cape Peninsula 
through all the forests of the southern coast belt to the East and North- 
east. 
GNETALES. 
Giietaceae. 
Represented in South Africa by Welvntschia Hook. f. Only found in 
the western Arid part of Great Namaqualand and northwards to Angola. 
