252 REV. R. BARON ON THE 
The following list shows the number of species in the Orders 
most largely represented, and their percentage of the total 
flora (i.e. of the 4100 plants mentioned above) :— 
No. Per cent, 
Leguminos® … eese 346 84 
Filices ............... eee 318 78 
Composite. essen. 281 69 
Euphorbiaeee .............. 228 5:6 
Orchidee .................. 170 41 
Cyperacew svenn. 160 3:9 
Rubiaeee ............ ee eee 147 3:6 
Acanthaceg ............. eee 131 32 
Graminem............ sees 130 9:2 
The Palms and Asclepiads are as yet imperfectly known. Of 
the former only 18 are described, although the island un- 
doubtedly possesses a large number. Many Asclepiadaceous 
plants have been collected, but the majority of them are still 
lying unnamed in various European herbaria. 
Since Mr. Baker read his paper on “The Natural History of 
Madagascar " at the meeting of the British Association at York, 
in 1881, a goodly number of new genera of plants from the island 
have been deseribed, so that the list he there gives needs many 
additions, so many in fact as to justify its revision. The number 
of endemie genera then known was about 80, it now reaches 
about 148. The following is a list of the endemic genera with 
the number of species as at present known :— 
MENISPERMACER ,........ Rhaptonema (1), Spirospermum (1), Burasaia (4), 
Strychnopsis (1), Orthogynium (1), Gamopoda (1)- 
BIXINEE .................. Tisonia (3), Prockiopsis (1). 
PoRTULACER ............ Talinella (1). 
GUTTIFERAE ............... Spheerosepalum (1), Leioclusia (1). 
CHLENACER een Sarcolena (4), Leptolena (5), Xerochlamys (4), Eremo- 
lena (1), Rhodolena (4), Schizolena (5), Sclero- 
læna (1). 
STERCULIACEA … … … … Cheirolsena (1), Speirostyla (1). 
TILIACEE .................. Ropalocarpus (4). 
LINER en. Rhodoclada (1). 
MarPIGHIACEE ......... Microsteira (1). 
GERANIACEE ............ Trimorphopetalum (1). 
OLACINER eeeeeneeeeenneenn Tridianisia (1), Petrusia (1). 
ni 
