602 SCITAMINE/E. 



2*. ZINGIBER, G. 



Character of Renealmia, but filament long, and connective produced beyond the anther- 

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

 spikes : bracts \-Jtowered. 



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 : labellum dark-blue 

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

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

 1V-2", bracts 10"'-12'" long.— Hab. Naturalized and cultivated in Jamaica [and Cuba!, 

 introduced from East Indies]. 



3. COSTUS, L. 



Corolla and labellum of Renealmia. Stamen petaloid, spathulate ; anther-cells adnate to 

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

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

 terminal, usually supported by the uppermost leaves ; bracts broad, \-fiowered. 



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 ; labellum exserted, shortly Z-lobed, recurved. — Ja.cq. Amer. Pict. 

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

 long. 



a. Wholly glabrous. 



0. jmbescens. Leaves pubescent, chiefly beneath : ochrea ciliate. — C. villosissimus, Jacq. 

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



Hab. Jamaica (Sw.); S. Kitts, Grenada, S. Vincent, Guild, (fi) ; Trinidad (Crueg.); 

 [French islands (Jacq.) to Brazil] . 



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

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

 inferior terminated by a foliaceons appendage ; corolla white, with a ye/loio blotch ; label- 

 lum exserted, " undulate, narrow." — C. arabicus, Jit. C. niveopurpureus, Jacq. (Fragm. 

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

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

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



9. C. spiralis, Rose. "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. Schcenbr. 1. 

 I. 1. — Alpinia, Jacq. 



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

 corolla red with a yellow tinge." — " 3'-4' high ; spike 2" long." 



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

 red."— Bot. Mag. t. 899.] 



y. Roscoei. "Leaves lanceolate-oblong, pointed, glabrous; bracts glabrous; corolla red. 

 — Rose. Monundr. t. 79. 



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



10. C. cylindricus, Jacq. Leaves lanceolate- or obovate-oblong, pointed ; spike cylin- 

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

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

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

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

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

 blnnt; corolla U" long, "yellow (Rose), variegated (Jacq.), or red" (Kegel): Plumier 

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

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

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



