GENERA MICROSTYLIS AND MALAXIS. 845 
bus incrassatis, callo conico obtuso parvo ad basin; columna 
graciliuscula arcuata, stelidiis dentiformibus subobtusis. 
S. India, Pulney Mts., Nilgherries, Wight! Gamble, 1788. 
Wadearhatti, Meetz, Pl. Ind. Or. no. 1321! subnom. Liparis densi- 
flora. Anamallay Mountains, Beddome! Ootacamund, Beddome ! 
This little plant, apparently common in grassy pastures on 
the Nilgherrie hills, in India, has been much confused with 
JM. versicolor. lt varies much in length of raceme and stem, 
but its lanceolate sessile leaves and swollen pseudobulb at 
once distinguish it. 
The three species M. Rheedii, pratensis, and versicolor ure 
somewhat closely allied, and have been much confused. M. 
Rheedii is at once distinguished by its much larger flowers 
and more oblique leaves, and is, I believe, confined to the Fiji 
Islands, whence I have not seen either of the other two. 
M. versicolor has a straight narrow stem not at all swollen at 
the base, at the top of which the leaves are arranged in a tuft. 
M. pratensis has a short pseudobulbous stem, distinctly swollen 
at the base, from which the erect or at least not spreading nor 
petiolate leaves arise. Sometimes, certainly, the stem is a little 
elongate, but it always seems to retain its swollen base. The 
flowers are as large as those of M. versicolor, but the lateral 
sepals are neither so curved nor so broad as they are in that 
species, but more resemble the dorsal one. The lip too is longer 
and more deeply laciniate, and bilobed as well. I have only 
seen it from the mountains of Southern India. 
63. MICROSTYLIS LUTEOLA, Wight, Icones, no. 1632. 
Pseudobulbus parvus, ovoideus; caulis gracilis brevis, folio 
vaginante lanceolato, tectus; folia evoluta smpius 2, dissita 
lanceolata acuta, 2 uncias longa, unciam lata; scapus suberectus 
vel nutans, ultra dimidio racemosus, circiter 4-uncialis ; flores 
parvi et pauci flavi; bractee quam pedicelli vix breviores 
lanceolate setace® deflexe ; pedicelli j-uneiales curvi; sepalum 
posticum lanceolatum loratum obtusum, lateralia lanceolata 
obtusa obliqua latiora; petala angusta linearia ; labellura late 
triangulari-cordatum, apice latum, dentibus vel potius laciniis 
acutis pluribus, basi parum depressa, callo parvo ad basin 
columns; columna basi angustata, dentibus duobus acutis 
minutis ad apicem. 
India, Malabar, Concan, &c., Stocks 4 Laws! 
Ceylon, Thwaites, no. 2748 ! 
LINN. JOURN.— BOTANY, VOL. XXIV. 2E 
