oe “7 
683 4 | 
COSTUS afer; .«: glaber. 
Smooth Sierra Leone Costus. 
——— 
MONANDRIA JZONOGYNIA. 
Nat. ord. ScrrAMiNEx. Brown prod. 1. 805. 
COSTUS. Supra fol. 665. isto 
C. afer, foliis lanceolato-elongatis, spicd turbinaté coarctata, bracteis) her-; 
aceis muticis obtusis, calyce breve tridentato dentibus herbaceis muti-. t 
cis; filamentidorso glabro. 6 2s ext eared ; 
(«) glaber, foliis utrinque viridibus ocreisque leyibus. | 9 rf 
(8) pubescens, foliis utrinque viridibus subtis vaginisque hirté villosis ; vagi-. ‘| 
narum ocrea fimbriata. porte Seritncgie iss * Se Eat at. 
Caules pedales v. ultra, erecti, vaginati. Fol. laxé sparsa, patentia, 
lanceolata, aristato-acuminata, utrinque viridia: petiolus. brevis robustus: 
vagina viridi infra ocream insertus. Spica terminalis, sessilis, multiflora, 
arctissimé obovata, foliis in bracteas decrescentibus vallata: flores geminati:. 
bracteze virentes, mutice, obtuse, extertores late, calyct equales. Cal. mem-' i 
branaceus, infundibuliformis, semnincia longior, brevissime trifidus lobulis: ; 
herbaceis oblatis acuminatis, muticis. Cor. candida, sesquiuncid altior:;, 
tubus communis brevissimus flavus cuneatus; limbus exterior tenuis, subequa-. 
lis, nitidus, interiore + v. circitér brevior, laciniis elongato-oblongis, lineas. 
3 v. circitér latis, parim inequalibus (2 anticis reflexis? posticd erecta? ): 
limbus interior opacus, unilateralis, anticus, lato-cuneatus, unilabiato-convolu- 
tus, inferne longior erectus, superné brevior recurvus rugatusque, margine labri 
eroso-denticulatus, disco incrassatus aredque flava villosd. filamento respon- 
dente et sulco verticali bisecté notaius. Fil. petaloideum, album, utrinque 
glabrum, elongato-oblongum, breve acuminatum, limbum exteriorem equans, 
basi flavescens et cum limbo interiore in tubulum brevem intis flavo-barbatum 
concretum: anthera verticalis, adnata, infra flecuram acuminis filamenti 
intramarginalis, oblonga, albida: pollen ochroleucum. Stig. album, trans- 
versum, lunatum arcus superni cornubus deflexis, bilamellosum lamellis ~ 
transverse parallelis equalibus conformibus conniventibus ciliolatis, d tergo 
inferne convecum et gibbo erecto bidentato (dentibus staminum lateralium 
rudimentis?) onustum. 
An unpublished species, introduced last summer from 
Sierra Leone, by Mr. George Don, collector for the 4 
Horticultural Society. Plants of it flowered shortly after | 
their arrival in one of the hothouses in the new garden of a 
the Society. Samples from the same country had been long 
ago deposited in the Banksian Herbarium, in Mr. Brown's — 
Library, by the late Dr. Afzelius, as well as in Mr, Lam- 
bert’s Herbarium. 
VOL. VIII. : AS é : 
