100 THE JOURNAL OF BOTANY 
not so in C. anisopterum, which generally has three or four wings, 
and the diagnostic character of the genus has had to be modified 
to admit of this 
_The authors divide Combretum pate numerous groups, depending 
largely on whether the flowers are tetramerous or pentamerous, 
character of the disc. hus, for oat in the first section, 
Hypoecrateropsis,we have tetramerous flowers, the upper portion of 
the receptacle patelliform, and a generally “distinetly 4-lobed dise, 
while in the section Cacoucia, previously mentioned, the flowers 
are showy and pentamerous, the upper portion of the receptacle is 
hollow and campanulate, the dise cupuliform. Between these 
extvernds pci every modification in the shape of the receptacle 
seems ag occu 
The hes have been fortunate in the mass of material which 
they Faye ties able to examine for the purposes of this mono- 
only are there large collections in Berlin, but they 
have had the loan of specimens from Zurich, Hamburg, Coimbra, 
As will always be the case in a work of this ee there 
are numerous points of detail which suggest remark. In the 
National Herbarium the types of Don’s African plants a pre- 
al n 
C. virgatum Welw. and C. virgultosum Welw. The diagnostic 
character is ‘“‘ frutex ; foliis adultis manifeste tomentellis ; ramulis 
icin e ramis yeas ortis valde abbreviatis” ; but C. virgatum 
its flowers in dense short axillary branches, and has leaves 
which are velvety scintiatine below, while in C. virgultosum the 
lateral branches of the inflorescence are often 10-12 cm. long, an 
yoo leaves of the —— —z are almost glabrous. There 
re some a sions: we not find Combretum (Poivrea) mwero- 
ense (Baker in Kew Bulictin, 1895, p- 290), and several other species. 
The stall plates are of great service, and we trust the remaining 
portions of the order will meet with a similarly liberal treatment. 
E. G. B. 
pica viahents Genera et Species. Exposuit Frrrz Kraenz 
Vol. i., Fasc. 9-12. 8vo, pp. 5138-768. Berlin: sinvar & 
Miiller. 1893-1900. 
Fascictes 9-12 of Dr. Kraenzlin’s work on Orchids sam 
the st a EL. tpsceeag vert the whole of Tribe III. ma- 
deniea arge portion 0 ribe IV. Satyriea, of the m om 
7 ae With slight ipcdiibeaticus the Gymnadenica ‘oppear as 
