merosae. Caules filiformes, uniarticulati. Folium erec- 
tum, lineare, carnosum ut videtur. Flos membranaceus. 
Sepala petalaque acuta, trinervia. Sepala lateralia ob- 
longo-lanceolata, libera. Sepalum dorsale simile, paulo 
majus. Petala lanceolato-elliptica. Labellum obovatum, 
supra medium leviter trilobatum, late obtusum, inferne 
cuneatum. Columna brevis, crassa. 
Plant small and slender, about 4.5 em. or less high. 
Roots fibrous, numerous, glabrous. Stems filiform, uni- 
foliate, up to about 1.5 em. high, 1-jointed. Leaves linear 
linear-oblong or elliptic-linear, apparently fleshy in fresh 
material, very shortly petioled, acute to rounded at the 
tip, erect; blades 1.3-1.95 em. long and 1—2 mm. wide. 
Inflorescences axillary, fascicled, apparently one flower 
present at a time. Flower membranaceous. Sepals and 
petals acute, 3-nerved. Lateral sepals free, oblong-lan- 
ceolate, about 3.5 mm. long and 1 mm. wide. Dorsal 
sepal similar, about 3.7 mm. long and 1.2 mm. wide. 
Petals elliptic-lanceolate, about 3.1 mm. long, 1 mm. 
wide. Lip obovate in outline, 1.6 mm. long, about 1 mm. 
wide above the middle, broadly obtuse, somewhat tri- 
lobed near the apex with rounded subequal lobes, cuneate 
toward the base, 3-nerved. Column very short, stout, 
about 1 mm. long on the dorsal surface. 
The above description is based on two plants (mount- 
ed on the herbarium sheet with Octomeria integrilabia 
C. Schweinf.) of which one bears only a cylindrical ribbed 
fruit, but is closely similar to the flower-bearing plant be- 
side it. The single flower present has somewhat distorted 
perianth segments. ‘here appear to be no near allies. 
Bririsu Guiana, Hoodsline [?]. February 1896. E.F. im Thurn 
715 B (Tyrer in Herb. Kew. ) 
Octomeria integrilabia C.Schweinfurth sp. nov. 
Herba pusilla, caespitosa. Radices numerosae. Cau- 
[ 87 ] 
