MR. C. B. CLARKE ON CAREX WAHLENBERGIANA. 299 
Mann, n. 653 in herb. Kew. Kilimanjaro, alt. 2000-3000 metr., 
H. H. Johnston ; Marangu, alt. 2250 metr., Volkens n. 1274. 
Boott has gone so far as to inscribe on G. Mann n. 653, 
* O. Wahlenbergiana, Boott, t. 301;" but I do not think it is very 
near it. Volkens n. 1274 is exceedingly like C. chlorosaccus 
type (G. Mann n. 653) ; H.H. Johnston's example is altogether 
larger, with a much developed panicle, the partial panicles larger 
compound. 
I have above attempted to show that Boott had two distinct 
species under the name Carex Wahlenbergiana, Boott, when he 
founded that species, in his own Herbarium [one of these being 
C. Steudneri, Boeck.]; that Boott subsequently named as his 
C. Wahlenbergiana, both in his own and in Kew Herbarium, 
another (Madagascar) plant which is closely allied to C. Rensch- 
iana, Boeck.; that Boott subsequently published [1864] as 
Carex Wahlenbergiana a Fernando Po species, which I take to 
be conspecific with C. ramosa, K. Schum. (non Schkuhr), from 
Kilimanjaro; lastly, that Boott has published part of his C. 
Wahlenbergiana var. P over again as a var. of C. erinigera, Boott. 
I regret that I am not able to work out this group of Carex— 
“the Indice "—for Africa (with Madagascar). There remains, 
in the Kew Herbarium, a whole cover of Mascarene examples 
referred provisionally to Carex bengalensis, Roxb., to which they 
are really allied. 
In the case of C. Wahlenbergiana, as of several of his South- 
American species, Buott appears to have started with one (or 
two nearly allied) forms; but, when subsequently additional 
material arrived, to have placed under his original species other 
plants which it is not possible to regard as varieties merely of 
the typical species. I have had the advantage of the opinion of 
Mr. N. E. Brown and Dr. Stapf on this Wahlenbergiana, Boott, 
as written up by him in his own and in the Kew Herbarium; 
they think there are four (Mr. N. E. Brown says probably five) 
species put together. 
LINN. JOURN.— BOTANY, VOL. XXXIV. Y 
