outstanding one. T'hrivspermum fantasticum, in habit, 
is not easily distinguished from 7'.comans J. J.Sm. and 
the other species preceding 7°. fantasticum in this paper. 
Leyte: epiphyte in forest, Jaro, Buenavista, at 500 meters alti- 
tude, July 14, 1914, Wenzel 496 (Type in Herb. Ames No. 43896). 
6. Thrixspermum sp. 
The specimen cited below seems to represent an un- 
described species, but the material is not adequate for 
description. There is but a single flower available and 
that is withered. The lateral lobes of the lip which are 
strongly talcate are longer than the pilose-pubescent mid- 
lobe, and there seems to be only a single transverse callus 
on the lip. 
The relationship of the plant would appear to be 
with 7°. fantasticum L.Wmus., but the single transverse 
median callus suggests a possible alliance with 7° agu- 
sanense Ames. 
Minpanao: epiphytic in forest, Placer, Province of Surigao, at 
150 meters altitude, May 31, 1927, Wenzel 10054. 
7. Thrixspermum eximium L. O. Williams sp. 
nov. 
Herba parva, epiphytica. Radices fibratae, elongatae. 
Caules breves, foliosi. Vaginae foliorum persistentes, cau- 
lem obtegentes. Folia oblongo-lanceolata, obtusa, leviter 
retusa, disticha, aliquid conferta et coriacea. Bracteae 
inflorescentiae perbreves, obtusae, imbricatae. Sepalum 
dorsale ovatum, obtusum. Sepala lateralia subrotunda, 
obtusa, quinquenervia. Petala oblongo-ovata, obtusa, 
quinquenervia. Labellum trilobatum, tricallosum. 
A small epiphytic herb. Roots fibrous, elongated. 
Stem short, leafy, 2-8 cm. long, covered with persistent 
leaf-sheaths. Leaves oblong-lanceolate, distichous, obtuse 
or slightly retuse, crowded, rugose (at least when dry), 
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