Plate 194. 



ONCIDIUM SEEEATUM 



Serrated Oncidium. 



Gen. Char. {Vide mp-a, Plate 154.) 



Oncibiiim serratum ; pseudoISulbis ovalibu. elatis dfphyllis, Mis erectis rigidis acuti.s basi a«gns. 

 tatis canahcuktis, pamcula mnriflnrA hv^^r..\h... c...„k„ ........ „-°.x- n..^^ ,. _.^° • 



multo 



gioribus obovatis pateutissimis, petalls ovatis acutis scrrato-cnspatis 



multo 



subulatis ascendentibiis. 



i linonri obtusfi 



Omidium serratum. Undl. Sert, Bchh. in Walpers' Ann. v. 6. Bot Mag. (. 5632. 

 Oncidium diadema. Rort • 



I 



1 was much struck with this yeiy remarkable Onddium, which I Jiad the jjood 

 lortune to see in flower in the Bishop of Winchester's collection at Faniham Castle, in 

 -December last. It has the colour and somewhat the appearance of 0. cmpum, but 

 the flowers are tossed about after a strange and fantastic fashion, which will no doubt 

 become still more pwioncee as the plant gathers its full strength aud sends forth 

 twniing scapes nine or ten feet long. It belongs to a peculiar group that was at one 

 tmie regarded as a distinct genus, I e. CyrtocMlum, but which is now more properly 

 considered a subgenus of Oncidium. Some of them — the Cfjrtochihim voluhik of 

 Poeppig for example— have stems twenty feet high. Mr. Linden was the introducf-r 

 of the present plant, w^hich he sold under the unwarranted name cf 0. diadimrt m 

 Stevens's rooms. It is a native of Peru, and must be regarded as a moderatrly " cool " 

 Orchid. 



Bescr. Pseudohulhs tall and oval, bearing one or two long, ngiil, cvccU fl^nt'^ 

 leaves, which are narrowed at the base and canaliculate. Fanide lax, many-fiowen d, 

 much longer than the leaves (in wild specimens nine or ten feet long). ^.71^^ with 

 crisp and serrate margins, the upper one kidney-shnped, the lateral ones ver) nm..h 

 longer, obovate and spread open, of a brown chocolate colour, tipped and margn,.d 



