A recent study of additional material of D. Ramosu 
indicates that it is only varietally distinct from D. fili- 
Jorme Lindl. 
Dendrochilum (Subg. Platyclinis) rotundilabium 
L.O. Williams, n. sp. 
Herba epiphytica, usque ad 1 dm. alta. Pseudobulbi 
ovoidei vel fusiformes, sulcati, aggregati. Folia elliptica, 
acuta, 5—-7-nervia. Bracteae inflorescentiae rotundato- 
ovatae, multinerviae. Sepalum dorsale oblongo-ellipti- 
cum, obtusum, uninervium. Sepala lateralia anguste 
ovata, acuta, uninervia. Petala oblongo-elliptica ad 
oblongo-lanceolata, obtusa vel acuta, uninervia. Label- 
lum integrum vel margine paulo serrulatum, rotundum, 
ecallosum, basi paulo saccatum. Columna subgeneris. 
An epiphytic herb up to about 1 dm. tall. Pseudo- 
bulbs ovoid or fusiform, suleate (when dry), aggregated, 
covered with fibrous sheaths, 6-8 mm. long, 3-4 mm. 
thick when dry. Leaves elliptic, acute, 4-10 em. long, 
5-13 mm. broad; the blade with 5-7 prominent lateral 
veins, the outer pair on the margin of the blade giving 
a marginate appearance. Flowering peduncle slender, 
6-9 cm. long: the distichous raceme dense, few-flowered, 
1.5-2 em. long, the alternate flowers mostly 1-1.5 mm. 
apart. Bracts of the inflorescence rotund-ovate, many- 
nerved, about 2.5-3 mm. long and about as broad, ex- 
ceeding the pedicel and ovary in length. Dorsal sepal 
oblong-elliptic, obtuse, 1-nerved, about 83 mm. long and 
1.5 mm. broad. Lateral sepals narrowly ovate, acute, 
I-nerved, 2.5-83 mm. long and 1.2-1.8 mm._ broad. 
Petals oblong-elliptical to oblong-lanceolate, obtuse or 
acute, 1-nerved, 2.5—-3 mm. long, 1-1.2 mm. broad. Lip 
entire, the margin sometimes minutely serrulate, rotund, 
ecallose, slightly saccate at the base, usually 8-nerved, 
about 2.5 mm. long and as broad. Column only slightly 
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