Habenaria natalensis Reichenbach filius Otia Bot. 
Hamburg. (1881) 97. 
The type specimens of these two species agree in all 
features. The distribution of the species is Northern 
Nigeria, Uganda, Kenya Colony, Angola, Northern 
Rhodesia, Transvaal and Natal. No doubt the gaps in 
this distribution, e.g. Tanganyika and Southern Rhode- 
sia, will be filled as botanical exploration progresses. 
H. chlorotica is very closely allied to HZ. filicornis and 
‘areful measurements and analysis of over forty gather- 
ings have been necessary to convince me of their distinet- 
ness. The most obvious difference is in the leaves which 
are linear and about sixteen times as long as broad in the 
former, whereas in HZ. filicornis they are oblong or nar- 
rowly lanceolate and about five and one-half times as long 
as broad. In addition the plants are distinctly more robust 
in AZ. chlorotica with longer and more floriferous inflores- 
cences. In the floral details differences are evident only 
on careful examination. In H. chlorotica the lobes of the 
lip are shorter, the stigmata are longer, and the middle 
lobe of the rostellum is longer with a very pronounced 
fleshy ridge at its base. This ridge is either absent or 
poorly developed in HZ. filicornis. 
Habenaria peristyloides 4. Richard in Ann. Sci. 
Nat. sér. 2, 14 (1840) 270, t. 17, fig. 3. 
Habenaria combusta Ridley in Journ. Bot. 24 (1886) 
294. 
Habenariacardiochila Kraenzlin in Engler Bot. Jahrb. 
16 (1893) 144. 
Habenaria Rendlei Rolfe in Dyer FI. Trop. Afr. 7 
(1898) 213. 
Roeperocharis ukingensis Schlechter in Engler Bot. 
Jahrb. 58 (1915) 520. 
Careful examination of the type specimens, figures and 
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