602 SCITAMINEvE. 



2*. ZINGIBER, G. 



Character of Renea!mia, but filament long, and connective produced beyond the nnther- 

 cells into a linear, grooved, terminal appendage. — Root tuberous ; flowers in dense, short 

 spikes : bracts \-fiowered. 



6*. Z. officinale, Rose. Scape radical, half or one-third as long as the sterile stem ; leaves 

 linear-lanceolate, acuminate, tapering towards the 2-lobed ligule : bracts imbricate, ovate- 

 roundish, blunt, membranaceous ; " corolla-lobes pale-yellow, lanceolate : labelluni dark-blue 

 and variegated, 3-lobed: middle lobe broad, emarginate, lateral short, narrow." — Hose. 

 Monandr. t. 83.— Scape I'-li' high ; leaves 8"-l'2" long, 8"'-12"' broad ; spike ovoid, 

 I4"-2", bracts 10'"-12"' long. — Hab. Naturalized and cultivated in Jamaica [and Cuba!, 

 introduced from East Indies]. 



3. COSTUS, L. 



Corolla and lahellum of Renealmia. Stamen petaloid, spathulate : anther-cells adnate to 

 its inner side. Stigma dorsally 2-corniculate. Capsule " pulpy, loculicide, many-seeded." 

 — Stem leafy, thiokish, trailing ; leaves supported by a tubular ochrea ; spike dense, mostly 

 terminal, usually supported by the uppermost leaves ; bracts broad, \^lowered. 



7. C. spicatus, Sw. Leaves elliptical, or elliptical-oblong, pointed ; spike ovate : 

 bracts imbricate, broadly ovate, pointed, striate, keeled above, red-coloured (except at the 

 margin) ; corolla yellow ; labelluw, exserted, shortly 3-/o^ea(, recurved. — Jacq. Amer. Pint, 

 t. 1. Rose. Monandr. t. 77. — Alpinia, Jacq, — 1'-6' high ; bracts 1", flowers about 2V 

 long. 



a. Wholly glabrous. 



5. pubescens. Leaves pubescent, chiefly beneath : ochrea ciUate. — C. viUosissimus, /acj'. 

 (Pragm. t. 80) : a still more pubescent form. 



Hae. Jamaica (Sw.) ; S. Kitts, Grenada, S. Vincent, Guild, (ffj ; Tnaiiai {Ci-ueg.) ; 

 [French islands (Jacq.) to Brazil]. 



8. C. glabratus, Sw. Leaves elliptical-oblong, or lanceolate-oblong, pointed, glabrous ; 

 spike ovate-oblong : bracts imbricate, ovate-roundish, with a bluntish point, striate, green, 

 inferior terminated by afoliaeeous appendage ; corolla white, with a yellow blotch ; label- 

 lum exserted, " undulate, narrow," — C. arabicus, Ait. C. niveopurpureus, Jacq. {Fragm. 

 t. 79) is probably a form of our species (" corolla white, with a violet tinge, lahellum lacerate 

 at the summit"). — \\'-V high ; bracts 1" diam., flowers 2"-3" long. — Hab. S. Lucia (5w.), 

 in moist woods ; [Haiti I, French islands ! ; Guiana]. 



9. C. spiralis, Soic. "Leaves oblong-obovate, or lanceolate-oblong, pointed; spike 

 ovoid: bracts imbricate, ovate-roundish, obtusate, red; corolla red; labellum about as 

 long as the superior petal, exceeding the stamen, entire, straight'' — Jacq. H. Sehosnbr. 1. 

 t. 1. — Alpinia, Jacq. 



a. Jacquini. "Leaves oblong-oboyate, pointleted: ochrea often ciliate; bracts cHiate; 

 corolla red with a yellow tinge." — ".S'-A' high ; spike 2" long." 



[fi. Pisonis, Lindl. " Leaves fliiptical, cuspidate, glabrous ; bracts glabrous ; corolla' 

 xiA."—Sot. Mag. t. 899.] ■ • 



y. Boseoei. "Leaveslanceolate-oblong, pointed, glabrous; bracts glabrous; corolla red." 

 — Rose. Monandr. t. 79. 



Hab. S. Vincent {Jacq. a) ; Trinidad (Rose, y) ; [Brazil]. 



10. C. cylindricus, Jacq. Leaves lanceolate- or obovate-pblong, pointed ; spike a/li»' 

 drical : bracts densely imbricate, broader than long, broadly rounded, striate, red ; (joroUa 

 " yellow or red ;" lahellum about as long as the stamen, entire, straight. — Jacq. Pragm. t. 

 77. Rose. Monandr. t. 78. — C. Anachiri, Jacy. (Fragm. t. 78) : probably a stout form of 

 the same, with variegated, red and yellow flowers. C. ciliatus, Miq. ! .- a form with pubes- 

 cent ochrcEE, corresponding with Roscoe's figure. — 6' high and more ; spike 4"-6'' long, 

 blunt; corolla IJ" loflg, "yellow (Rose), variegated (Jacq), or red" (Kegel): Plumier 

 stated the flowers of his Martinique plant to be blue, but he saw them only iu a withered 

 state. — Hab. S. Vincent (C. Anachiri, Jacq.) ; Trinidad (C. cylindricus. Rose.) ; [Mar- 

 tinique (C. cylindricus, Jacq.) ; Guiana !]. 



