Tab. 5661. 



COLAX jugosus. 



Furrowed-Upped Colax. 



Nat. Ord. Orchidia. — GtTNandkia Monandria. 



Gen. Char. Perianthiwm vix ringens, in mentum breve production, sub- 

 gtobosum. ^ Sepala et petala subaequalia, oblonga. LabcHum unguiculatuai, 

 immobile, inappendiculatum, ungue brevi sublineari in laminam dilatatam 

 3-lobam dilatato. Columna semiteres, subelongata. Anthem earnosa, 

 subimmersa. Pollinia 4, obovoidea, caudiculae mem bran a cere elongatsa 

 angustatse adnata ; glandula obscura. Bostellum 5-lobum. — Herbffl fteth 

 dobulbosa, Brasilienses. Folia terminalia et radicalia, plicata. Pedunculi 

 radicales, erecti, 1-3-JZori, vaginati. Flores majuscnli. 



Colax jugosus ; pedunculo 2-3-floro, sepalis ovato-rotundatis albis>, petalis 

 late obovatis albis fasciis purpureis creberrime notatis, labelli viliosi 

 jugosi purpureo-fasciati lobis lateralibua parvia, intermedio semiorbi- 

 culari, columna villosa. 



Colax jugosus. Lintll. in Hot. Betj. 1843; Misc. p. 51. Beivhenb.Jil. Xen. 

 Orch. p. 107. t. 41. 



Maxillaria jugosa. Lindl. Bot. Beg. 1840; Misc. p. 51. 



The genus Colax was established by Lindley upon certain 

 Mamillaries with less ringent flowers than the majority of 

 the species of that genus and a peculiar caudicle, though 

 how far such differences will hold good as generic cannot be 

 determined, until a revision of this great and most important 

 Order shall settle the value of the characters now so arbitra- 

 rily used for the limitation of its genera. Colax is, however, 

 upheld by Keichenbach, whose authority on Orchidese is 

 unquestionably the highest, and who gives a very fair figure 

 of this species in the valuable work referred to. 



Colaxjiigosus is a native of Brazil, and, according to Lindley, 

 was introduced by Messrs. Loddiges. The specimen here 

 figured flowered in Mr. Ruckers magnificent collection at 

 Wandsworth in May of the present year. I have followed 

 Keichenbach in referring it to Lindley 's C. jugosus, from 

 whose description in the ' Botanical Register ' it differs in 



SEPTEMBER 1ST, 1SG7. 



