290 MR. HENRY RIDLEY ON ORCHIDEZ AND 
paludosum, Reichb. f., except that it does not emit roots from 
the upper part of the stem. 
Era (§ Erivra) rrtpirowra, Hook. f., Fl. Brit. Ind., v. p. 790, 
Ic. Pl., t. 2057. 
Hab. Perak: Gunong Batu Putih, Wray. 
E. (§ Ertura) Lonewouia, Hook. f., Fl. Brit. Ind., v. p. 790, 
Ic. Pl., t. 2068. 
Hab. Perak: Maxwell’s Hill, Gunong Hijan, Larut Hills! 
to 5,000 feet alt. 
Ulu Batang Padang, Wray. 
The flowers are entirely pure white. The lip in my specimens, 
when the flowers are fully developed, is narrower at the base, 
and longer in proportion to the rest of the perianth than in the 
figure. There are two little oblique ridges, one on each side 
in the broadest part. In one rather small form the flowers 
are arranged in whorls on the raceme, but they are not fully 
expanded. 
K. (§ Hymeneria) rioripunpa, Lindl., Bot. Reg. (1843) Misc., 
p- 43 (1844), t. 20, et in Wall. List, n. 7408. 
Hab. Singapore: Common in mangrove swamps; Kranji! 
Sungei Morai! Sungei Buloh, &c. ! 
Johore: Tana Runto! 
Selangor: Seppan ! 
Perak: Gunong Hijan, Larut Hills ! 
Kedah: Kedah Peak! 
The leaves in this species vary very much in size and form 
from linear-lanceolate to oblong-lanceolate, and the amount of 
pink colouring in the sepals and petals, which are usually nearly 
pure white, also varies considerably. It is, however, I believe, 
very distinct from the next species, which seems to have been 
confused with it. It was first collected by Cuming, 1n 
Singapore. 
E. (§ Hymenerta) pensa, Ridl. in Journ. Linn. Soc. (Bot.) 
xxxl. (1896) p. 281. 
Hab. Perak: Common in the Larut Hills at about 4,000 feet 
or lower. Maxwell’s Hill! Hermitage Hill ! 
Kedah: Kedah Peak ! 
This is a much stouter plant than E. floribunda, Lindl., and 
much more showy. The flowers are usually quite white, but 
