152 
f 
field. Professor Francis Guthrie, LL.B., B.A., who had long 
collaborated with Dr, Bolus, unhappily died on October 19, 1899. 
The elaboration of the intricate genus Erica is the result of their 
joint labours. The loss of his fellow-worker and his own indifferent 
health, compelled Dr. Bolus to abandon reluctantly proceeding 
with the remaining genera. ‘These were undertaken by Mr. N. E. 
Brown, A.L.S., w 0, in working them out, found it necessary to 
establish some new ones, and in other respects to depart from the 
published key to the order. He has accordingly prepared a new 
one, which will be found in the « Additions and Corrections” at 
page 1123 of this Section. 
Mr. N. E. Brown has also worked out the Asclepiadeae with 
immense pains. He has had the advantage of following 5 
Schlechter, an acute botanist who has few rivals as a collector. 
Both have been disposed perhaps to cut their species rather 
imself been occupied with the study of the fascinating group of 
Stapelicae, both under cultivation and in the herbarium, for the 
past forty years, and it may be hoped therefore that his conclusions 
will have reached some finality, He has been led to the important 
result that many supposed native species have arisen from cross- 
to 
feared that one of the most striking features of the South African 
Dr. Stapf, F.R. -» has elaborated the 14 cynaceae, 
Lieut.-Colonel Prain, C.LE., ERS, the Director of the 
Royal Botanic Gardens, has undertaken Loganiaceae with Major 
- A. Cummins, C.M.G., and Gentianeae with Mr. A. W. Hill, the 
_ For the limits of the regions under which the localities are cited 
found to occur, reference may be 
I continue to be indebted for invaluable aid to Mr. C. H. Wright, 
A.LS., now Assistant Keeper, and to Mr. N. E, Brown, A.L.S., 
Assistant in the Herbarium of the Royal Botanic Gardens, the 
former in reading the d th : . t the 
geographical distribution,” “nd the latter in working ou 
