ONCIDIDM. 



ORCIIIDES. 793 



sepalis petalisque labelli longitudine lineari-Ianceolnlis undulatis, labello 

 apice diiatala emarginato medio constricto basi auriculato, crista novem- 

 tuberculata depressa, columnae alis elongatis truncatis utrinque. 



Panama and Coiilinent of Tropical America. NearlyZallied to Oncid. allissimura in ' 

 structure of flowers, bui very differeni in its manner of growili. well disiinguished 

 by its truocated column— wings. 



C. Homoeanlha: ** expansa. L. F. 45. 



155. ONCIDIUM SCHILLERIANUM Rchb. fll. in Bonpl., Ap. I. 1851. L. F. p. 45: 



An undetermiiied specimen of tliis from Messrs. Booth and Co., of Hamburgh, has 

 been in my herbarium sine 1846. Flowers grcenish yellow, clouded with brown. It 

 is a very distinct species, of little beauty, with a loose few-flowered twining panrcle. 

 The crest consists of leeih and lamellae placed thus, ,3 



2 

 2 

 8 



Wild in 



Rchb. fll. 1. 0. p. 91: 



Convolvulaceo scandens flore ex typo illius 0. spiiacelati, alis tamen 

 angustis utrinque acutis serrulatis aequalibus , stigmatis limbo utrinque 

 unidentalo. 



Folia oblonga apice ailenuata bilobula. Paniculae axes tenues ramosi volubiles 

 elongaii. Ramuli flexuosi. Sepala oblonga basi aiienuata, summum obiuse apicu- 

 latum, lateralia acuto acuminata. Tepala subaequalia nunc paulisper laliora, acuta. 

 Labellum a basi laia triangula (medio tertia angustiori) diiatatum obreniforme; mar- 

 gines poslici basilares medio emarginali (hinc bilobuli) , margines latcrales sensim 

 convergenies. Tuberculatio: centrum a dentibus quadrigeminis occupatum; antepositi 

 dentes majores 3. medio posteriori; apposita utrinque basin versus carina po.ulo ex- 

 trorsa 3—4 serrulaia. Gynostemium abbreviatum crassura cycnicolle. Alae anguste 

 dolabriformes, serrulatae, utrinque acutangulae. anguli superiores aniheram ipsara 

 tegentes , sibi convergenies, anguli inferiores divaricati. Androclinium ascendens, 

 poslice triangulum. Fovea oblonga, margines lalerales membrana unideniata decur- 

 rente marginali , in processus rostellaris ligulati retusi bidenticulali basin co6untes. 

 Tabula infrasiigmatica utroque latefe sub fovea angulato producta. Ilullblatter grun, mit 

 braun getigert, spater gelb. Lippe goldgelb, braunneckig. Bliilhen so gross, wie die 

 eines massigen Oncidium sphacelatum. Von Consul Schiller. 



156. ONCIDIUM VOLYOX Rchb. in Bonpl., „ApiiI L 1854." Lindl. Fol. p. 45 : 



Anoiher convolvulaceous spccies, but with bright yellow llowers. The crest con- 

 sists of a central keel. with a pair of teeth at its base , and on either side two otber 

 keels, onea behind the other, and each deeply iwo-lobed. Cultivaied in Gcrmao 

 gardens. 



Wild in the Caraccas— Wagener. 

 Huc: Rchb. I. c. U. 13. (15. Jan. 1854.): 



Pedunculo orgyali volubili ramuiigero, ramulis a spathulis abbre- 

 viatis fultis, ipsis abbreviatis, flexuosis, paucifloris, bracteis squamae- 

 formibus ovaiii pedicellali sextam non aequantibus, sepalis tepalisque 

 lanceolatis aculis basi cunealis, tepalis subbrevioribus, onmibus margine 

 undulatis, labello pandurato, basi utrinque pone gynoslemium angulato, 

 dein emarginato, obtusangulo, sensim et conlinue a baseos angulis 

 angustalo, dein late reniformi bilobulo margine denticulato, callo baseos 

 depresso antice acuto, utiinque tri-quadriserralo , superaddita falcuia 

 utrinque pone dentem apicalem nonnullisque nunc pone lalera, gyno- 

 stemio gracili, parte sligmatica ampiiata, alis membranaceis rhombeis, 

 VL 100 



