A NEW SPECIES OF OCTOMERIA 
FROM MT. RORAIMA 
BY 
CHARLES SCHWEINFURTH 
Tue orchid collection made by G. H. H. Tate on 
Mount Roraima in 1927 contained, among several un- 
usual plants, the following new species of Octomeria. 
Octomeria monticola C. Schweinfurth sp. nov. 
Herba parvula, caespitosa. Radices fibrosae, glabrae. 
Caules dense caespitosi, pluriarticulati, apice monophylli. 
Folium erectum, ovato-lanceolatum vel lineari-lanceola- 
tum, sessile, valde coriaceum. Inflorescentiae caulis apice 
fasciculatae, pauciflorae. Flores parvi, campanulati, mem- 
branacei. Sepala lanceolata vel ovato-lanceolata, acumi- 
nata, trinervia. Petala oblique lanceolata, acuminata. 
Labellum multo minus, trilobatum cum lobis lateralibus 
erectis, in circuitu oblongo-ovatum; lobi laterales por- 
recti, faleato-oblongi, apice rotundati; lobus medius 
ovato-quadratus, apice truncato pluridentatus, margini- 
bus dentatis. Columna basi incrassata. 
Plant small, caespitose, up to about 15 cm. tall to the 
tip of the erect leaf. Roots fibrous, glabrous, numerous. 
Secondary stems congested, up to about 10.5 em. high, 
about 8- to 5-jointed, with the lower joints approximate 
and the uppermost internode the largest, mostly con- 
cealed by close tubular sheaths; the joints are marked by 
conspicuous dark bands. Leaf apical, erect, ovate-lanceo- 
late to lanceolate or linear-lanceolate, minutely tridentic- 
ulate at the obtuse apex, sessile with a cuneate base, up 
to 5.4 em. long and about 1.1 cm. wide, rigid and cori- 
aceous in the dried specimen with sulcate mid-nerve and 
revolute margins. Inflorescences fascicled at the apex of 
the stem, each one apparently several-flowered with the 
abbreviated 1-flowered peduncle mostly concealed by 
scarious imbricating sheaths. Flowers small, membrana- 
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