By Mr. John Lindley. 



279 



is very fleshy and solid, and overshadows the inside of the 

 flower like an helmet ; in the inside it is bright yellow, on the 

 outside pale green. The column is very large, beautifully 

 spotted with purple, and has two long cirrhi in front, 

 which being longer than the columna, lie coiled up in the 

 bottom of the labellum. A robust stove plant, flowering 

 in September; in its native country, it is found upon the 

 stems of living trees. It, or a neighbouring species, has been 

 received by the Society from Robert Hesketh, Esq. His 

 Majesty's Consul at Maiunham, growing upon the live stem 

 of a young palm tree. This species has been figured, and 

 described in the Botanical Register, tab. 840, from the plant 

 which flowered in the Society's collection. It has been named 

 after Captain Douglas Charles Clavering, F. R. S., &c. 

 the Commander of H. M. S. Pheasant, in the voyage during 

 which the plant was collected. It is very distinct from C. 

 Iridentatum of Dr. Hooker, (Exotic Flora, tab. 90,) but the 

 distinction between it and the C. floribundum of the same 

 work, (tab. 151,) does riot appear to extend much beyond 

 the differences in their colour. 



XXIV. Polystachya puberula. Lindley. 

 An exceedingly rare species of Polystachya, sent from 

 Sierra Leone, by Mr. George Don, in 1822. The leaves 

 are five or six upon each of the ovate bulbs, distichous, lan- 

 ceolate, obtuse, with about nine nerves, and forming a sort 

 of stem by the union of their bases. The flowers are ter- 

 minal, bright greenish-orange, in a close thyrsoid panicle, 

 and covered over with minute yellow hairs. From the other 

 species of Polystachya it is easily distinguished by its long 



