PLEUROTHALLIS 59 



On trees ; infl. July, Aug. ; in fr. Aug. ; Swartz ! Moody's Gap, J. P. 2071, 

 Syme\ Mabess River, 2000 ft., C. Nicliollsl G. Nichols ! Harris ! Cuba, 

 Hispaniola, Porto Pico, Martinique, Dominica, St. Vincent, Grenada, 

 Trinidad, Margarita, B. Guiana, Ecuador, Peru, Bolivia. 



Plant 7 to 13 in. 1. Rhizome creeping, 1-1*5 mm. thick, with a dense 

 covering of slender root fibres and from the upper surface a number of 

 erect slender rounded clustered stems from 4 to 20 cm. 1., with a slender 

 adpressed cylindrical truncate bract (about 2 cm. 1.) about or rather below 

 the middle. Leaf, blade 11 cm. 1., 2*5 cm. br., erect or suberect, stiff, 

 many-nerved, glabrous, oblong-lanceolate, apex more or less acuminate, 

 stalk about 1*5 cm. 1. A dense cluster of inflorescences springs from the 

 short conduplicate bract (6-7 mm. 1.) ; each inflorescence contains several 

 stalked flowers (stalks 5-6 mm. 1.), the base of each stalk is surrounded by 

 a thin hyaline bract. Sepals 7 mm. 1., lanceolate, acuminate, lateral 

 connate. Petals 3*5 mm. 1., linear, acuminate, erect. Lip 1*25-1*5 mm. 1., 

 *75-l mm. br., lower portion nearly square in outline with raised convex 

 sides and a broad central channel, apex bluntly triangular with a much 

 thickened callus on the midrib. Column less than 1 mm. 1., including the 

 short rounded anther-cell. Ovary 2 mm. 1. Capsule green, narrowly 

 club-shaped, about 1 cm. 1. 



11. P. braehypetala Griseb. in Cat. Cub. 257 (1866); stems 

 nearly as long as leaf ; racemes 24 together, with two to five 

 fiVwers, one-third to one-fourth the length of the leaf ; leaf 

 oval ; sepals dark purple, lateral f-connate ; petals cuneate, 

 apiculate. Cogn. op. cit. 406. (PL 8, f. 7-10.) Type : Cuba, 

 Wright, 3349. 



On trunks of trees amongst lichen and moss; in fl. Nov. -April; Mt. 

 Moses, 3500 ft., J.P. 2277, Syme ! above Mabess River, 3500-4000 ft.; 

 Lancaster, 2500 ft. ; near Cinchona, 4500 ft. ; Harris ! Fl. Jam. 7641, 

 7852, 9012, 10,501. Cuba, Porto Rico. 



Plant 2 to 3 in. high. Stc?ns 2-3 cm. 1., clustered, compressed, 

 nearly covered with rather loose sheaths, the upper keeled, acute, the 

 others blunt. Leaf 3-4 cm. 1., 10-14 mm. br., sessile, oval to narrowly 

 elliptical, base clasping. Racemes to 1 cm. 1., with a prominent sheathing 

 bract at base. Flowers dark purple. Bracts 2 mm. 1., sheathing, loose, 

 shortly acute. Sepals 4 mm. 1., gibbous; median ovate, obtuse; lateral 

 ovate-lanceolate, shortly acute. Petals half as long as sepals, *8 mm. br. 

 Lip shortly clawed, with two short lobes below the middle, elliptical 

 above, apex rounded, incurved towards the column below, recurving above 

 the middle. Column as long as petals, clavate, winged, with a distinct foot. 



Specimens from Jamaica agree with Wright No. 3349 in Herb. Kew, 

 which unfortunately has no flowers. Grisebach's description differs from 

 our plant in petals being ovate and lip obovate. 



12. P. Wilsonii Lindl. in Ann. & Mag. Nat. Hist. ser. 3, 

 i. 326 (1858) (in part) ; stem longer than the small elliptical- 

 lanceolate leaf ; peduncles, one or (rarely) two or three, with one 

 flower (or rarely two) on each, much shorter than leaf ; petals 

 oblanceolate, shortly acute. Lindl. Ful. Orcli. Pleurotli. 17 (in 

 part); Griseb. Fl. Br. W. Lid. 608; Cogn. op. cit. 407. (PI. 9, 

 f. 8.) Type in Lindley's Herb, at Kew. 



On trees and rocks ; in fl. Aug.-Nov. ; in fr. Dec-May (fide Cogniaux) ; 

 Bethabara, Wilson ! and Wullschlaegel, 1079 ! Porto Rico and Guadeloupe 

 (fide Cogniaux). 



