402 MR. HENRY RIDLEY ON ORCHIDEH AND 
to it. The column in this plant is so twisted to one side that 
an insect seeking honey in the spur could not, unless very large, 
touch the pollinia with its head. The stigma is a projecting 
cushion placed a little below the anther-cap. The butterfly, 
after sucking the nectar for some seconds, darted suddenly to 
another flower, and struck with its leg the stigma implanting 
the pollinia on it; but as it immediately flew off again a portion 
only of the pollen adhered to the stigma. I caught another 
specimen at the flowers which bore the pollen masses firmly 
attached to the right fore-foot. 
Hemaria seems to be specially adapted for butterfly-fertiliza- 
tion in several points. Unlike many Neottie, it inhabits sunny 
rocks near streams where butterflies are abundant. The flowers 
are showy and white, the colour of most of the butterfly-haunted 
flowers in the jungle; and the remarkable twist in the colamn 
and lip seem to be intended to ensure the visiting insect in 
striking the viscid disc and stigma with its legs. 
DOSSINIA, Morren. 
D. marmorata, C. Morr. in Ann. Soc. Gand, iv. (1848) p. 171, 
t. 195. 
Hab. Penang : Government Hill, 0. Curtis ! 
The only locality known outside Borneo. 
ZEUXINE, Lindl. 
Z. arrinis, Benth. ex Hook. f., Fl. Brit. Ind., vi. p. 108. 
Hab. Penang: Maingay, Curtis ! , 
L. RENIFORMIS, Hook. f., Fl. Brit. Ind., vi. p. 107, et Ic. Pl., 
t. 2173. 
Hab. Perak: Scortechini. 
HYLOPHILA, Lindl. 
H. mouuis, Lindl., Gen. et Sp. Orch., p- 490, et in Wall. List, 
n. 7396. 
Hab. Singapore: common; Chan Chu Kang! Choa Chu 
Kang! Toa Payoh! Tehan! Kranji! 
Malacca: Griffith. 
Perak: Scortechini. 
