560 ORCHIDES. cycnoches. 



2. CYCNOCHES VENTRICOSCM Bai. Orch. Max. Guat. Tab. 5: 



Sepalis pelalisque lanceolatis acumine reflexis, labello integro ven- 

 Iricoso acuminalo basi calloso , ungue brevi; columna arcuata sepaio 

 supremo dnplo breviore. 



Guatemala. Isiapa. Skinner, 



Leaves lanceolate 5 — 6. Stera 1', After flowering season leaves fall ofT. stem be- 

 comes shorlcr and more swollen, and is ihen deeply marked by longiiudinal lines. 

 as wcll as by bonzontal contractions at ihe points from whence the leaves fall. 

 Frotr! ihe axils of ihe upper leaves; racemes, 2— niore, at ihe same time sometimes, 

 but more usually in succession; each of ihese bears about 5 flowers. which open 

 simulianeously lasting about 3 days. Raceme first horizontal. Sepals lanceolale. Pe- 

 tals curved downwards. of a light green colour, as are also sepals. Lip white, con- 

 nected wiih the column by a shorl clow, which presents a black callosity. 



b. SEXUS? WARSCEWICZII Rchb. fil. Huc : Cycnoches Warsceiviczii Rchb. fil. in 

 Schl. B. Z. 1852. 754. 



Perigonii phyllis obiongis erectis, lateralibus omnibus curvalis, la- 

 bello abbreviato , lato unguiculato , dein oblongo acuto, carnosissimo, 

 margine membranaceo, callo baseos crassissimo antice rotundalo, Bolleae 

 violaceae more intruso , gynosteinio abbreviato, semitereti, crasso, in- 

 curvo , utrinque pone foveam stigmaticam auriculato alato , androclinio 

 postice bilobulo, lobulis lateralibus rolundato-triangulis, abbreviatis, dente 

 inlerjecto, processu roslellari producto oblongo. 



iXachst Cynoches chlorochilon Klotzsch , aber durch die kurze dicke Saule vollig 

 abweichend. Ob auch eine der wunderbaren dimorphischen Forraen, welche in diescr 

 Galtung spuken ? — Chiriqui. 



3. CYCNOCHES CHLOROCHILON Klotzsch in Otio u. Dietr. Allg. Garlzg. 1838. p. 225. 

 (21. Juli 1838). Lindl. Sert. (1838) Tab. 16: 



Racemo subtrifloro suberecto, sepalis ovalibus, pelalis paulo majori- 

 bus falcatis, labello subsessili obovato aculo convexo basi concavo: 

 callo clavato transverso obtuso triangulari. 



Demerara. Lodd. — Maracaybo. Moritz sent 1836 to Berlin. 



Difl"ers from C. veniricosum : llOAvers larger, raceme shorter and less graceful. sepals 

 and petals broader and not so acute, especially in the form of the lip, which is nearly 

 sessiie, obovate, and acute . not ovate. and acuminate, green , not white , whiih the 

 broad green callosily at ihc base far larger and differenlly formed. Raceme springs 

 from the upper part of ihe slem, bears usually 3 flowers of an uniform , yellowish 

 green colour, 3" diam., nodding by their wight. Lateral sepals oblong , narrowed to 

 the point. not acuminate, a liitle longer ihan the labellum, ai the back of which ihey 

 are slightly falcate wilh iheir concave edge next the lip, towards which they are 

 lurned ; so that ihe flower has its psrts expanded in 2 opposite directions; ihe lateral 

 sepals, petals, lip upwards, and ihe intermcdiale sopal downwards. The lip slands 

 ereci at the back of thc flowers, aboui 2'/i" long, IV4" wide in ihe broadest part ; 

 texiure flrm and fleshy , colours deep green at the base , and an yellowish green 

 cvery where else ; in forra it is widest and vcry convex a little above the middle, 

 from wliich it is regularly ovate as far as ihe point; below the middle it narrows, 

 and becomes concave with thick , broad , elevaied edges and al ihe base it is con- 

 tracted into a very short thick Heshy unguis; above ihe unguis , and across it, is 

 seated a Ihick, green, soraewhat triangular, but rounded callosity , scarcely a cjuarter 

 of an inch deep. The coluran is about an inch and '/4 long . very slender, green, 

 wide at ihe base, tapering through the greaier part of its lengih and flaiiened out 

 at ihe apex, where it terminaies in 3 narrow fleshy teeih curved over the back of the 



