850 THE JOURNAL OF BOTANY 
NOTES ON AFRICAN ASCLEPIADE. 
By James Brirten, F.L.S. 
I nave lately been arranging the Tropical African Asclepiadea in 
the National Herbarium in accordance with Mr. N. E. Brown's 
monograph in the Flora of Tropical Africa. Iam greatly impressed 
with the thorough and exhaustive nature of Mr. Brown’s work, an 
it is ‘satisfactory to know that the Asclepiads for the Flora Capensis 
are in his capable hands. One or two notes which I made during 
my work may perhaps be worth recording. 
Although the National Herbarium has been consulted, it has 
not es examined as exhaustively as might have been desired ; 
and as a consequence certain ones have been left doubtful which 
might eso been cleared up. For example, of Ceropegia Steudnert, 
which Mr. Brown oan knows from disonipeen, there are excellent 
apace of the Schimper plant (no. 225) on which Vatke founded 
his species. Under feieee Schimperi he cites ‘‘ Hildebrandt 
484 (ex Vatke)’; but the set of Hildebrandt’s plants to which this 
belongs, and wh hich iia petite show that Mr. Brown has not 
geen, is in the National Herbarium: the plant in question is, more- 
over, the type of the species, which was originally described by Vatke 
under Astephanus. Of each of the four species of dentadentache a 
British Museum has specimens not cited by Mr. Brown, and o 
of them—lL. ? visciformis—which Mr. Brown says he has not a. 
we have ro Hildebrandt comes cited by Vatke as the type of 
species ; specimen is in and uld have enabled 
Brown to is his deseription—" “follicles mentioned, but at 
described ’’—more comple 
Other examples of Rieiiar omissions might be cited—for in 
stance, specimens from the Rev. W. EH. Ta ylor named cies 
denticulata K. Schum. by Mr. Schlechter, might have been worth 
examination, a s Mr. Brown says he has not seen the species—but 
c 
vite ei a more theoaa investigation of an easily pase 
collection. Such mes % may be noted in other of the Kew 
Floras; thus, in Fl. Brit. Ind. iv. 52, Sir Joseph moe says: 
‘* Dischidia clavata Wall Cat. 4209 is unknown to me; I have not 
found it in Wallich’s herbarium at the Linnean Society”: but the 
