Pleurothallis echinocarpa C. Schweinfurth sp. nov. 
Herba caespitosa cum rhizomate repente. Caules 
breves, approximati, robusti, vagina scariosa infra velati. 
Folium lineari-oblongum vel oblongo-ellipticum, acu- 
tum, sessile, valde coriaceum. Inflorescentia unica, folium 
conspicue superans. Racemus laxe pluriflorus, rhachide 
fractiflexa. Flores mediocres, carnosi. Sepalum dorsale 
ovato-lanceolatum, acutum, concavum. Sepala lateralia 
ovato-lanceolata, valde obliqua, acuminata, dorso cari- 
nata. Petala breviora, elliptico-lanceolata, acuta vel bre- 
viter acuminata, basi utrinque unidentata. Labellum 
oblanceolato-oblongum, apice denticulato rotundatum, 
infra medium valde incrassatum, a latere visum infra 
medium utrinque semiorbiculari-lobatum. Columna cras- 
sa. Ovarium dense muricatum. 
Plant medium-sized, with an abbreviated ascending 
rhizome, epiphytic, up to 20 cm. tall. Roots fibrous, 
glabrous. Stems stout, short, subterete, approximate, 
up to 8.5 cm. long, monophyllous, concealed below by 
one or two membranaceous evanescent sheaths, appar- 
ently slightly dilated near the apex. Leaf erect, linear- 
oblong to narrowly elliptic, up to 11.8 em. long and 2 
cm. wide, acute, mucronate, sessile at the cuneate base, 
thickly coriaceous. Inflorescence solitary, axillary, erect 
or suberect, stout, up to 16.8 em. long, much surpassing 
the leaf, sheathed at base by a short conduplicate spathe 
up to 1.1 em. long. Peduncle below the raceme up to 
9.2 cm. long, slightly complanate, provided with two or 
three infundibuliform sheaths. Raceme up to 8.5 cm. 
long, about 9-flowered or less, loose, with a fractiflex 
rachis. Floral bracts infundibuliform, complanate, broad- 
ly carinate. Flowers medium-sized, campanulate, fleshy. 
Dorsal sepal ovate-lanceolate, acute, concave, carinate at 
the apex, 9.5—-9.8 mm. long, 4-4.4 mm. wide, 9-nerved. 
Lateral sepals obliquely ovate-lanceolate or triangular- 
[179 | 
