Orchidaceae. 407 
 obtusis, lateralibus duplo longioribus usque ad apicem connatis; petalis 
linearibus, apice angustatis, deflexis; labello cordato-ovato, obtusius- 
culo, sepalis subaequilongo. 
Pleurothallis discoidea Lindl. in Bot. Reg. XXI (1835) subt. 1797, 
Fol. Orch., Pleuroth. p. 19; Griseb. Flor. p. 608. 
Labellum flavum, ad medium macula oblonga sanguinea ornatum, 
Hab. in Trinidad ex Lindl. loc. cit. 
D. Depauperatae Cogn. in Mart. Fl. Bras. III. 4 (1896) p. 453. — 
Spec. 127 — 131. 
127. Pleurothallis Wilsoni Lindl. glaberrima; rhizomate repente, 
elongato, subfiliformi; caulibus remotiusculis, ascendentibus, filiformi- 
bus, superne acute tetragonis, supra basin uniarticulatis, 3—5 em. 
longis; folio sessili, chartaceo, elliptico-lanceolato, basi satis angustato, 
apice acutiusculo et minute tridentieulato, 3—4!/, em. longo, 5—9 mm. 
lato; pedunculis unifloris, solitariis vel rarius geminatis, capillaribus, 
6—14 mm. longis; sepalis tenuiter membranaceis, trinervulosis, dorsali 
oblongo-subspathulato, obtuso, 3°/,—4 mm. longo, 1 mm. lato, laterali- 
bus paulo brevioribus, triangularibus, acutis, basi 11/, mm. latis, fere 
usque ad apicem connatis; petalis pellucidis, anguste ovatis, acutis, 
uninerviis, margine subtiliter serrulatis, 1!/,-—1?/, mm. longis, ®/, mm. 
latis; labello carnosulo, anguste ovato-rhomboideo, obtuso, tenuiter 
papilloso, leviter trinervuloso, margine obscure denticulato, 21/, mm. 
longo, 1!/, mm. lato; columna 1'/, mm. longa, basi in pedem 1 mm. 
longum producta. 
Pleurothallis Wilsoni Lindl.! in Ann. and Mag. Nat. Hist. III ser. I 
(1858) p. 326, Orch. Wr. p. 2, Fol. Orch., Pleuroth. p.17 (part,); Griseb. 
Flor. p. 608; Urb. Fl. Portor. p. 171; Fawe. et Rendle, Orch. of Jam. 
ined. 1.9 f. 8. 
Flores viridi-lutei, intus violaceo-striati. Fl. VIT—XI; fr. IV, V, XI. 
Hab. in Jamaica: Wilson; Portorico in arboribus sylvae 
primaevae prope Cayey ad ripam fluminis Plata circa Cidra, prope 
Coamo in convalli fluminis eirca Farajones, prope Adjuntas in fruti- 
cetis Coffeae arabicae montis Bayaya et Galsa: Sintenis n. 2064, 3249, 
4241, 4285; Guadeloupe in arboribus et in rupibus ad Vieux- 
Habitants et ad Polygone militaire: Duss n. 3536, 4139. 
128. Pleurothallis eonfusa Fawc. et Rendle: glaberrima; rhizo- 
mate repente, elongato, subfiliformi; caulibus remotiusculis, ascen- 
dentibus, subcapillaribus, acute tetragonis, supra basin uniarticulatis, 
11,—21/, em. longis; folio sessili, chartaceo, oblongo-subrhomboideo, 
utrinque satis angustato, apice minute tridenticulato, 15—25 mm. longo, 
