History, under the name of llodriouezia cochlearis ; and ray 

 specimens will not shew what proportion the anther bears to 

 the column in that species. These circumstances induce me 

 to adopt the genus Leochilus, although the name (smooth-lip) 

 is not applicable, none of the species having it smooth, and 

 one at least being remarkably tubsrculated. From Oncidium 

 this genus is well distinguished by the position of the arms of 

 the short column, and the honey-pore. The following characters 

 will enable Botanists to arrange the genus and its species in 

 their systematical works. 



LEOCHILUS, Knowles S,- Westcott. Sepala et petala patula, basi aequalia, 

 lateralia nunc connata Labellum indivisum, basi tuberculatuai aut la- 

 niinatum et fovea mcHiferu auctum. Cokmina brevis, teres, libera, bra- 

 chio porrecto sub stigmate utrinque aucta. Rostellum ovatum. Authera 

 columna latior ob rostellum promineus, unilocularis, membranacea. Pol- 



linia 2, caudicula elongata angusta, glaudula minuta ovali. Herbee 



epiphytce liseudo-bulbosce , American! tropicam Aa6z7«w#e*. riores^«rOT 

 racemosi, 



■^ Sepala lateralia connata. 



Sp.l. L. oiicidioides (Knowles & Waste. Rodriguezia maculata, Lindl. in 

 Bot. Reg. 1840. misc. 218. Oncidium inacr anther urn. Hooker in Bot. ]\Iag. 

 t. 3845.); racemis nutantibus foliis subsequalibus basi laxe et distautev 

 vaginatis, sepalis lateralibus basi tanti'ini connatis, labello oblougo con- 

 vexo retuso v. apice angustato rotundato secus axin depresso infra me- 

 dium crista pubescente utrinque elongata aucto basimellifero. Mexico 



and Guatemala.- Flowers spotted with pale purple, on a dirty semi- 

 transparent ground. 



Sp. 2. L. cochlearis (Rodriguezia cochlearis, Lindl. in Ann. nut. hist. 4. 

 116.); foliis oblongis sessilibus horizontalibus racemo erecto radicali 

 siibcorymboso paucifloro duplo brevioribus, sepalo supremo cum petalis 

 obtuso lateralibus acutis semiconnatis breviore, labello obovato cochlear! 

 obtuso basi crista hippocrepica utrinque elongata bicarinato. - — Domi- 

 nica. Flowers apparently yellow. 



** Sepala omnino libera. 



Sp. 3. L. carinatus (Oncidium carinatum, Knowles ^ Westcott, Floral Cab. 

 2. p. 30.); pseudo-bulbis ovatis, foliis lanceolatis, scapo erecto, floribus 

 secundis racemosis, sepalis petaUsque lineuribus disjunctis, labello lineari- 

 oblongo emarginato basi meliifero cristato : lamellis 2 brevibus truncatis 



utrinque glanduhs 2 filiformibus auctis. Xalapa in Mexico. — — 



Flowers orange, the petals spotted, the sepals whole coloured; the lip 

 yellow with a few orange spots. 



D —April, 1842. / 



