PLEUROTHALLIS 65 



Dendrobium lanceola Sw. in Nov. Act. TJpsal. vi. 83 (1799), Fl. 

 Ind. Occ. 1539 & Adnot. Bot. t. 2, /. 5. Type in Herb. Mus. Brit. 



On trees and stones ; in fl. and fr. Oct.-Feb. ; mountains, Swartz I 

 St. George, J.P. 171, 231, M(yrris I Mt. Moses, 3800 ft., J.P. 2091, Syme ! 

 St. George, Portland, 2500 ft.; near Mabess Eiver, 3000-4000 ft.; near 

 John Crow Peak ; Harris ! Fl. Jam. 7467, 7520, 7742, 10,479. 



Plant IJ to 2 J in. high. Stems generally 1-1^ cm. 1., sometimes 

 shorter, enveloped in scarious sheaths, filiform. Leaf 3-4 cm. 1., 3-3*5 

 mm. br., narrowing gradually below into a distinct stalk, linear-lanceolate, 

 shortly apiculate, margins revolute when dry, midrib prominent on the 

 under side. Pedicels '6 cm. 1. Bracts about 1*5 mm. 1., sheathing, 

 truncate. Flowers nearly \ in. 1., orange or scarlet. Sepals 5-6*6 

 mm. 1., lanceolate, obtuse, 3-nerved, keeled, spreading at apex, lateral 

 connate at the base, gibbous. Petals 2*5 mm. 1., nearly half as long as 

 the sepals, oblong-spathulate, with 1-2 nerves, prominent. Lip, as long as 

 the petals, oblanceolate, 3-nerved, reflexed about the middle, with undulate 

 margin there. Column scarcely shorter than the petals, winged ; clinan- 

 drium, margin crenulate. Capsule '5 cm. 1., ellipsoidal to obovoid. 



24. P. septulapioides Spreng. Syst. Hi. 731 (1826) ; stems 

 very short, from creeping rhizome ; leaf narrowly oval, oval- 

 oblong or linear-spathulate, narrowed into the stalk ; sepals 

 straw-coloured or greenish, membranous, lanceolate, acuminate, 

 lateral shortly connate, slightly gibbous. — Lindl. Fol. Orch. 

 Pleuroth. 42 ; Griseh. op. cit. 609 ; Cogn. op. cit. 426. Epiden- 

 drum sertularioides Sw. Prodr. 122 (1788). Dendrobium ser- 

 tularioides Sw. in Noc. Act. Upsal. vi. 83 (1799) & Fl. Ind. Occ. 

 1541. Type in Herb. Mus. Brit. 



On trees; in fl. and fr. Jan., Feb.; mountains, Swartz \ Beaufort, 

 WullscJilaegel, 1081 (in part) 1 below Vinegar Hill Gap, Portland, J.P. 

 2039, Campbell ! near Mabess River, Fawcett I Belvedere, Hanover, 500 ft. ; 

 Troy, 1600 ft. ; Harris ! Walderston, Mrs. Longstaff ! Fl. Jam. 7569, 10,446, 

 10,487.— Cuba, Trinidad. 



Plant barely an inch high. Rhizome less than 1 mm. br., slender, 

 creeping, ringed, rooting at the nodes, covered with membranous sheaths. 

 Stems less than 5 mm: 1., from 5 to ilO mm. apart, generally springing 

 from alternate nodes or every third node of the rhizome, enclosed by 

 sheaths. Leaf 1-5-2 -5 cm. 1. Peduncles solitary, capillary, scarcely as 

 long as the leaf, 1-rarely 2-flowered, with a short, truncate, 2-dentate, 

 spathaceous bract at the base and above the middle, sometimes with 3 

 bracts; occasionally the peduncles of two preceding flowering seasons 

 persist. Bracts barely exceeding 1 mm. 1. Flowers about ^ in. 1,, straw- 

 coloured or light green. Sepals about 4 mm. 1., 1 mm. br,, 1-nerved. Petals 

 3 mm. 1., • 7 mm. br., linear-lanceolate, acuminate, 1-nerved. Lip 2 • 4-2 ■ 75 

 mm. L, •4-' 75 mm. br., sessile, with minute square auricles at base, 

 linear-lanceolate, margin undulate, denticulate about midway, recurved 

 above. Column 1*5 mm. 1., with a membranous wing.. Capsule ellip- 

 soidal, 3-keeled, about 9 mm. 1. 



25. P. mierolepanthes Griseh. op. cit. 610; plant not more 

 than J in. high ; stems clustered, shorter than the leaf ; 

 sheaths with mouth dilated, margined and ciliate ; peduncle half 

 as long as leaf ; sepals yellow in drying, lateral connate nearly 

 to apex. — Cogn. op. cit. 430. 



