30 



ONClDIUM sphacelatum. 

 Scorched Oncidium. 



GYNANDRIA MONANDRIA. 

 Nat. ord. Orchidace^ § Vande^. 

 ONCIDIUM. Supra vol. 9. fol. 727. 



Sect. Euoncidium ; ft Heteranthium ; * Folia plana ; | % Pentapetala ; 

 ^ ^ Micropetala ; (^^ {^p- Labellum panduratum. Lindl. in Serfum 

 Orchidaceum sub t. 48. 



0. sphacelatum; pseudobulbis elongato-ovatis ancipitibus a latere planiusculis, 

 foliis longis ensiformibus apice recurvis, scapo stricto, racemo composite 

 multifloro, sepalis petalisque lineari-lanceolatis undulatis labello sequali- 

 bus, labello medio coustricto basi auricidato apice dilatato rotundato bi- 

 lobo, crista depressa pubescente a latere dentata apice triloba, columnee 

 alis elongatis truncatis erosis spliacelatis. Lindl. I. c. 



All who are acquainted with the genus Oncidium are 

 aware of the difficulty of distinguishing the larger of the 

 yellow-flowered species, and of determining even any of them 

 by books. In the number of the Sertum Orchidaceum just 

 published I have attempted to diminish those difficulties by 

 new classification of the species, and by a very careful correc- 

 tion of their characters. One hundred and one species are 

 there admitted, and many repetitions are referred to their 

 proper places as synonyms. 



Among the new species, described in that place for the 

 first time, is the plant now figured, one of the most beautiful 

 yet known, which has been sent from Guatemala to his friends 

 by Mr. Skinner, by Mr. Hartweg from the same country and 

 Mexico to the Horticultural Society, and from Honduras to 

 Messrs. Loddiges, with whom the species first flowered in 

 February, 1841, when the accompanying figure was taken. 



In habit it resembles O. reflexum, Pelicanum, and Baueri ; 



