IIG MB, H. N. RIDLEY ON THE 



Expressed in symbols : 



Trifolium. 



Grroup -5. Group tt. 



Stomata = rrr^.. Ibtoniata= ^^. 



This confirms my former result, viz. thai when bloom is deve- 

 loped on the upper surface ouly, there is a strong tendency to 

 accumulation of stomata on that surface. 



rinally, it may be pointed out that the genus Trifolium confirms 

 the generalization above made, that when bloom is on both surfaces 

 a large proportion of the stomata appear on the upper surface ; 

 although some cases occur in which the stomata occur exclusiveli/ 

 ou the lower surface. 



On Dr. Fox's Collection of Orchids from Madagascar, aloug with 

 some obtained by the Eey/E. Baron, E.L.S., from the same 

 island. By Heney K Eidlet, M.A., F.L.S., Assistant Bota- 

 nical Department, British Museum. 



[Bead 17th December, 1885.] 



I HATE to thank the authorities at Kew for placing in my hands 

 for description a collection of Orchids recently made by Dr. Fox 

 in the neighbourhood of Imerina. There were in the collection 



about 50 numbers and almost as many species, the larger number 

 of which were plants previously obtained by one or other of the 

 botanists who have recently been exploring almost the identical 

 locality. There is, however, on the whole, a very large proportion 

 of novelties, and of these several are peculiarly intere:?ting. The 

 collection adds three new genera to the flora, viz. Arnottiaj a 

 Mauritian genus of perhaps two species, which it was to have 

 been expected would occur also in Madagascar ; the very curious 

 genus Broicnleea, hitherto only known from Southern Africa, 

 where it is represented by 3 or 4 species j and HolothriXt an 

 East- and South-African genus. Tlie Madagascar species is a 

 very remarkable one, differing at first sight from the rest of 

 the genus in many striking particulars. Another interesting 

 novelty is Satyr ium gigas^ probably much the largest species of 

 the geinis known. 



