35 



is usually whole coloured, is tipped and banded with red. 

 In M. roseo-albus the fringes of the lip are unusually 

 long. 



13. C. atratiim (Lindl. in Bot. Reg. 1838. misc. 11 1<. t. (j3.) ; 

 racemo decurvo, sepalis petalisque patentibus ovatis 

 acutis, labello carnoso cucuUato margine tenui pectinato 



apice rotundato reflexo crasso denticulate Brazil. 



Flowers deep green outside ; sepals rich purple 



inside ; petals spotted with the same colour ; lip dull 

 green, fringed, with a yellow recurved flap at the end. 



14. C. Russellianum (Hooker in Bot. Mag. t.3777.) ; pseudo- 



bulbo elliptico magno, foliis lato-lanceolatis, racemo 

 ample, labello membranaceo antice inflate ore contracto 

 margine anteriore producto undulate fimbriate disco 



membrana cristate, columna nuda (ecirrhosa). Giia- 



temala. A large species with green flowers, a little 



relieved by the greater whiteness of the labellum, which 

 is almost membranous. It is very near C. laminatum. 

 The absence of cirrhi from the column, if constant, is 

 remarkable. 



§ 2. Lahellum planum, scepius foveatuiu v. saccatum ; 



Myanthus. 



15. C. laminatum (Lindl. in Ann. nat. hist. vol. 4. p. 384. 

 Bentham, Plantse Hartwegianee, p. 72. Sertum Orchi- 

 daceum, t. 38. — Var, 1. fnaculatum ; labello, columna 

 petalisque purpureo-fusco maculatis, Sert. Orch. t. 38. — 

 Var. 2. ehurneum, ; labello eburneo columna petalisque 

 immaculatis, Bot. Beg. 1841. t. 5. f. 4.) ; labello lan- 

 ceolate basi saccate apice marginibusque incurve basin 

 versus fimbriate per axin lamella unica carnosa alta in- 

 tegra v. denticulata basi biloba instructo, columna cir- 

 rhata. Mexico. Flowers spread open, large, pur- 

 ple, or greenish spotted with that colour. Lip sometimes 

 pure white, sometimes speckled with purple, with a 

 deep plate running along its middle from end to end. 



16. C. tabular e ; vegetatione sepalis petalisque omnino C. 

 laminati, labello oblongo antice concave basi cornuto 

 fimbriate extus sub apice lineis serrulatis elevatis striato 

 secus medium crista tabulari lata transverse corrugata 



antice dentata aucto. Grenada. This is very like 



the Guatemala C. laminatum j but the structure of the 



F—May, 1844. f 



