344 MR. H. N. RIDLEY’S REVISION OF THE 
Caulis gracilis, 34-4-uncialis, vaginis pluribus purpuras- 
‘centibus tectus, haud incrassatus; folia congesta ad apicem, 
8-4 inzqualia elliptica lanceolata vel ovata acuminata acuta 
5-nervia, tenuia, plicata viridia, breviter petiolata, petiolus 
uncialis vaginatus, vagina ampliata, lamina 23-6 uncias longa, 
1-2 uncias lata; scapus elongatus gracilis, rarius validulus, 
8-10-uncialis, ferme omnino racemosus angulatus; flores copiosi 
parvi, flavi, morientes rubri; bractee lanceolate longe acumi- 
nate deflexz, 1-upciales; sepala et petala omnia deflexa lanceo- 
lata lorata obtusa, petala angustiora obliqua, lateralia latiora 
obliqua, petalis breviora; labellum breve, parvum haud bilobum, 
latum, basi unguiculatum, columna subparallela, callo plano 
x . . . . . . ? 
triangulari, apice bilobo parvo ad basin, lamina deflexa inferne 
depressa, margine dentato, dentibus circiter 10 subzqualibus 
brevibus obtusis; columna longuiscula paullo arcuata basi 
angustata, stelidiis dentiformibus. 
S. India, Anamallays, Beddome! Herb. Heyne, Dr. Wallich, 
1939. 
Ceylon, Macrae! Hautane, Gardner, no. 844! Central 
_ Province, Thwaites, no. 2375! 2743. 
Thwaites’s specimens differ from those of the other collectors 
in having the pedicel considerably longer and the flowers a little 
larger. The column too seems somewhat stouter, and the 
lateral sepals broader and blunter. There is a good original 
drawing of the plant in a book of Cingalese drawings by Macrae 
in Bibl. Hort. Soc. 
62. MICROSTYLIS PRATENSIS, n. sp.—M. versicolor, Wight, 
Lcones, t. 901, non Lindl.— Liparis densiflora, A. Rich. in Ann. 
Sc. Nat. ser. 2, xv. 1841, p. 18, pl. 1 B. 
Planta variabilis, caule pseudobulboso conico, 3-unciali, vaginis 
foliaceis rarius membranaceis 1—2 tecto; folia lanceolata acuta 
vel ovata lanceolata acuminata, inequalia, 2-5 erecta vel paullo 
recurva, nec patula, nee petiolata, 5-nervia, 1-3 raro 4 uncias 
longa, 3-1 unciam lata; seapus 3-6-uncialis fere omnino racc- 
mosus; flores copiosi parvi purpurei; bracte® ovate lanceolate 
vel lanceolate acuminate deflexe, j-unciales ; pedicelli breves ; 
sepala lanceolata angusta obtusa, lateralia quam postica paullo 
latiora paullisper obliqua; petala linearia obtusa, sepalis paullo 
angustiora; labellum unguiculatum cuneatum, apice bilobum, 
margine laciniato, laciniis angustis subinsequalibus acutis longi- 
usculis, cireiter 12; fovea triangularis, haud profunda margini- 
+ 
| 
| 
| 
4 
