54 ORl inns OF JAMAICA 



Stems at Intervals from oreeping 

 rhizome. 



Leaf oval-roundish 17. /'. testifolia. 



Leaf linear-spathulate 24. P. sertulcurioides. 



B. Sheaths (as in Lejpcmthes) with mouth 



dilated, margined, ciliate. Leaves 

 A inch 1. or less. 

 Flower -stalk much shorter than leaf ; 



stems much shorter than leaf..... ... 25. P. microlepcmthes. 



Flower-stalk longer than leaf ; stem not 

 shorter than leaf. 



Stem with more than one leaf 26. P.foliaht. 



Stem with only one leaf 27. P.trilobata. 



In the sequence of the species we have followed the arrangement 

 adopted hy Prof. Cogniaux in Urban's Symbolse Antillanse vi. 391-7. 



1. P. longissima Lindl. Fol. Orch. Pleuroth. 31 (1859); 

 raceme solitary, many-flowered, two or three times as long as 

 leaf, enclosed by large leathery spathe ; sepals greenish-yellow, 

 acute, lateral connate almost to apex. Griseb. Fl, Br. W. Ind. 

 607 ; Beichb. f. in Saund. Bcf. Bot. t. 141 (1872) ; Cogn. in Symb. 

 Ant, vi. 397. P. racemiflora Lodd. Bot. Gab. x. t. 949 (1824) ; 

 Lindl. in Hook. Exot. Fl, t. 123 (1825), non in Fol. Orch. Type 

 in Lindley's Herb, at Kew. 



On trees and rocks; in fl. March- June ; Bertcro ; Macfadyenl St. 

 Mary, Purdie ! McNab ; Wilson ! Fairfield, Wullschlaegel, 1383 ! St. 

 Mary, J.P. 2331, Symel St. Ann, Miss T. M. Barrett ! Claverty Cottage, 

 Moore ! Back Woods, Portland Gap, Miss B. Qossetl Mt. Moses, 2000 ft., 

 Harris 1 Fl. Jam. 9018, 10,424, 8118 (fide Cogn.). Guatemala. 



Plant 1-1 ft. high. Stems 4-17 cm. 1., shorter or a little longer than 

 the leaves, clustered, clothed below with 2 or 3 adpressed acute sheaths. 

 Leaf 9-14 cm. 1., 2-3 cm. br., sessile, oblong or oblong-elliptical, obtuse, 

 tapering to base. Raceme to 35 cm. 1., with 15-26 secund flowers ; spathe 

 1-2 cm. 1. Bracts 3-4 mm. 1., slightly shorter than pedicels, scarious, 

 sheathing, obliquely truncate and obtuse. Pedicels short, 5 mm. 1. Flowers 

 about * in. 1., greenish-yellow. Sepals 7-9-5 mm. 1., with mid-nerves 

 prominent on back; lateral 4-4- 3 mm. br., broadly ovately concave; 

 median 3-3 3 mm. br., ovate, subacute, 3-nerved. Petals 6-8 mm. 1., 

 2-1-2-5 mm. br., narrowly oval-oblong, broadest below the middle, to 

 lanceolate, apex rounded, very minutely apiculate to acute, exceeding lip. 

 Lip shorter than petals, when flattened barely exceeding 4 mm. 1., limb 

 3-3*5 mm. 1., 2-2-25 mm. br., with large basal auricles and short claw, 

 roundish, 3-nerved, mid-nerve thickened in upper part. Column about 

 3 mm. 1., slender ; clinandrium membranous, ovate, blunt. 



2. P. raeemiflora Lindl. Fol. Orch. Pleuroth. 34 (1859); 

 racemes usually more than one, but only one liowering, many- 

 flowered, two or three times as long as leaf, enclosed by large 

 leathery spathe ; sepals purple, long acuminate, lateral -^-connate. 

 Griseb. op. cit. 607 ; Cogn. op. cit. 398. P. oblongifolia 

 Lindl. in Gomp. Bot, Mag. ii. 355 (1837). Epidendrum 

 racemifiorum Sw. Prodr. 125 (1788). Dendrobium racemi- 



