Örchidaceae. 403 
laxe paueifloris, folio vix brevioribus; pedicellis vix !/,; mm. longis; 
bracteis membranaceis, cucullatis, ovato-lanceolatis, 3—4 mm. longis; 
ovario subtiliter muriculato; sepalis tenuiter membranaceis, lanceolato- 
linearibus, acutis, subtiliter trinervulosis, 8 mm. longis, 1°/, mm. latis, 
lateralibus fere usque ad apicem connatis; petalis diaphanis, ovato- 
lanceolatis, acutis, uninervulosis, 3 mm. longis, 1!/, mm. latis; labello 
concavo, anguste ovato-subpandurato, apice rotundato, margine sub- 
tiliter denticulato, inferne trinervuloso, brevissime unguiculato, 3 mm. 
longo, 1?/, mm. lato, disco infra medium tenuiter bicarinato; columna 
2!1/, mm. longa. 
Pleurothallis prostrata Lindl.! in Ann. and Mag. Nat. Hist. ser.3.1 
(1858) p. 327, Orch. Wr. p.3, Fol. Orch., Pleuroth. p. 35; Griseb. Cat. 
p. 258; Sauwv. Fl. Cub. p. 226. 
Flores viridi- purpurei. 
Hab. in Cuba supra arbores in sylvis obscuris prope Monte- 
verde: Wright n. 629, 1500. 
120. Pleurothallis laxa (Sw.) Lindl. caespitosa; caulibus teretibus, 
5—10 cm. longis, vaginis longis laxis carinatis acuminatis vestitis; 
folio sessili, erassiusculo, oblongo, acuminato, basi acuto, dorso leviter 
carinato; racemis solitariis rarius fasciculatis, filiformibus, leviter 
flexuosis, laxe multifloris, folio eireiter aequilongis; floribus pedi- 
cellatis, secundis; sepalis ovato-lanceolatis, dorsali patente, lateralibus 
suberectis, usque ad medium connatis; petalis triplo brevioribus, lineari- 
bus, erectis; Jabello ovato, canaliculato, apice reflexo; columna petalis 
breviore, apice dilatata; capsula ovoidea, trigona, laevi. 
Pleurothallis laxa Lindl. Gen. and Sp. Orch. (1830) p. 7, Fol. 
Orch. Pleuroth. p. 35; Griseb. Flor. p. 607. 
Epidendrum laxum Sw. Prodr. (1788) p. 125. 
Dendrobium laxum Sw. Flor. III (1806) p. 1547. 
Flores atropurpurei, labello caerulescente, columna caerulea. 
Hab. in altissimis montibus Jamaicae australis, supra ramos 
arborum: Swartz. 
121. Pleurothallis hirsutula Fawe. et Rendle: caulibus numerosis, 
ascendentibus, gracilibus, ad medium et paulo supra basin articulatis, 
8—15 cm. longis, vaginis densiuscule breviterque hirtellis; folio obliquo, 
coriaceo, sessili, anguste lanceolato-ligulato, basi satis angustato, apice 
acutiusculo et minute bidenticulato, 5—8 em. longo, 8—13 mm. Iato; 
racemis solitariis vel interdum faseiculatis, filiformibus, usque ad basin 
laxe plurifloris, 3—5 cm. longis; pedicellis 2 mm. longis; bracteis 
Scariosis, ochreatis, apice dilatatis et oblique truncatis, 21, —3 mm. 
longis; ovario laevi; sepalis erectis, tenuiter membranaceis Pre, 
