412 A. Coenıaux: 
2 mm. lato, inferne trilobato, lobis basilaribus divaricatis, obtusis, inte- 
gerrimis, sublaevibus, lobo terminali producto, late ligulato, obtuso, 
subtiliter denticulato, dense muriculato, disco inferne bicarinato; 
columna gracili, 21/, mm. longa. 
Pleurothallis Urbaniana Rehb.f.! in Ber. Deutsch. Bot. Ges. III 
(1885) p. 279; Urb. Fl. Portor. p. 172. 
Flores albidi, intense rubro-striati. Fl. III, V, XI. 
Hab. in Portorico ad arbores vetustas in sylvis primaevis prope 
Adjuntas in monte Guaraguao, prope Utuado in monte Colon ad Ron- 
cador, prope Maricao ad Indiera-Fria versus: Sintenis n. 503, 4365, 
6527, 6985. 
137. Pleurothallis triehyphis Rchb.f. minima, caespitosa; cauli- 
bus filiformibus, uniartieulatis, 1—3 mm. longis; folio rigido, sessili, 
elliptico-ovato interdum subrotundato, apice obtuso vel rotundato et 
minute tridenticulato, dente mediano subulato longiore, basi abrupte 
breviterque angustato, distinete marginato, 4—6 mm. longo, eireiter 
3 mm. lato; pedunculo capillari, unifloro, prope apicem minute bi- 
bracteato, 10—15 mm. longo; sepalis ligulatis, obtusiusculis, subtiliter 
trinervulosis, 21/, mm. longis, dorsali ®/, mm. lato, ‚lateralibus paulo 
angustioribus usque ad apicem connatis; petalis ovato-oblongis, acutis, 
uninervulosis, integerrimis, 1!/, mm. longis, !/, mm. latis; labello 
sessili, ambitu late oblongo, trinervuloso, 1!/, mm. longo, ?/,; mm. lato, 
inferne leviter trilobato, lobis margine integerrimis, lateralibus brevi- 
bus late semirotundatis, terminali producto obtuso; columna crassius- 
cule. clavata, ®/, mm. longa. 
Pleurothallis triehyphis Rehb.f.! in Flora (1865) p. 276; Griseb. 
Cat. p. 259; Sauv. Fl. Cub. p. 226. 
Hab. in Cuba oceidentali: Wright n. 3345. 
138. Pleurothallis eornieulata (Sw.) Lindl. parva, dense caes- 
pitosa, glaberrima; caulibus ascendentibus, filiformibus, uniarticulatis, 
a mm. longis; folio satis coriaceo, oblongo, apice acuto vel ob- 
tusiuseulo et subtiliter tridentieulato, basi in petiolum 3—8 mm. longum 
angustato, tenuiter marginato, 11/,—21/, cm. longo, 4—8 mm. lato; 
peduneulis solitariis vel rarius geminatis, capillaribus, unifloris, superne 
minute unibraeteatis, 2—4 em. longis; floribus erectis, segmentis 
tenuiter membranaceis; sepalis conniventibus, leviter arcuatis, lineari- 
lanceolatis, acutiuscule acuminatis, trinervulosis, integerrimis, sub- 
tiliter papillosis, 5 mm. longis, 1 mm. latis, lateralibus fere usque ad 
apicom connatis; petalis late lanceolatis, breviter acuminatis, trinervu- 
losis, integerrimis, 3 mm. longis, 1—11/, mm. latis; labello breviuscule 
angusteque unguiculato, lanceolato-rhombeo, obtusiuscule acuminato, 
