17 



noso cordato trilobo laciniis rotundatis intermedia emar- 

 ginata apice calloso basi ^-tuberculato, spica globosa 



recurva. Jamaica, Panama, Martinique, Guayana, 



Grenada. One of the most common of all plants in 



some of the tropical parts of America, and varying 

 greatly in the size of its flowers and length of the flower" 

 stem. Hence have arisen several species, proposed by 

 myself and others, which a better acquaintance with 

 these plants induces me to believe mere varieties. In 

 colour the flowers vary from dull greenish purple to o-reen 

 and almost yellow. Sir W. Hooker's E. viridipwyurcum 

 has unusually large flowers, and a flower-stem shorter 

 than common ; but in real structure I perceive no differ- 

 ence. There is a little difference among these plants in 

 the degree of lobing observable in the lip ; but I And no 

 limit to that kind of variation. 



8. E. orchidijiorum (L. no. 29.) ; foliis distichis lineari- 



oblongis obtusis, caule apice nudo obtuse vaginato, ra- 

 cemo brevi terminali, floribus carnosis, sepalo supremo 

 obovato lateralibus oblongis dimidiatis, petalis linearibus 

 cuneatis, labello subrotundo basi bicalloso apice triden- 



tato : dente intermedia minore. Bahia. Leaves 



very small, fleshy and shining. Flower-stem a foot long, 

 stout, clothed with blunt somewhat rough sheaths. 

 Flowers as large as in the Ep. viridipurpureum of 

 Hooker. (Not in cultivation.) 



9. ^. fruticosum (L. no. 22.); foliis distichis ovato- oblongis 



acutis, caule ramoso fruticoso, racemo terminali nutante, 

 sepalis cartilagineis petalisque membranaceis ovato-lan- 

 ceolatis acutis erectis, labello subrotundo cordato retuso 

 apiculato undulato callis 5 magnis confluentibus in disco. 



Mexico. Stem branching, without a trace of 



sheaths, as thick as a crow-quill. Bracts linear-lanceo- 

 late, about as long as the ovary. (Not in cultivation.) 



10. E. campestre ; foliis distichis lineari-lanceolatis, pedunculi 

 elongati squamis distantibus appressis, racemo cylin- 

 draceo, sepalis lateralibus falcatis labello duplo brevio- 

 ribus, petalis conformibus angustioribus, labello subro- 

 tundo obsolete 4-lobo margine integerrimo basi lineis 

 duabus elevatis confluentibus altera intermedia axin per- 



currente, clinandrio 4-lobo : laciniis quadratis. 



Brazil ; in dry upland Campos, Serro do F'rio, Diamond 



