OXCIDIUM. 



OBCniDES. 777 



Lindl. Dot. Reg XXXI. 1845. Misc. 60: 



PseudoliulbJs ovatis ancipilibus subangulatis apice elongalis di- 

 phyllis, foliis palulis lineari-lanceolatis racemo paucifloro brevioribus, 

 bracteis minimis , sepalis ovalibus paienlissimis , petalis paulo angus- 

 lioribus obtusis ascenrlentibus, labelli trilobi plani lacinia intermodia cu- 

 neata biloba lateralibus quadralis, tuberculo disci simplici, columna 

 elongata aptera. 



This iililc piant would i)e a vcry good Oncidium, if il liad ony wings to ihe colurnn; 

 ii Iiowever a|ipronches nearly some of ilie Coiumbiau species of Odontogiossa, with 

 which ii wiii naluraliy associaie. Its raceme is aboui a foot liigh . and bears 

 seven or 8 disianl llowers of a rich yellow, strealied with dull crimson along tho 

 middle of ihe sepals and petals, The pseudobulbs. which are nearly 2 inches long. 

 " are a pale sea green colour. — Exhih. May. 24. 45. by Warner, — Idera in Cot. Reg. 

 4847. 20. dicitur b. purpuratum. — Liudl. Dot. Reg. L c. a, sordidum: sepalis peta- 

 lisque lutescentibus purpureo striatis. 



§. Plurituberculala. L. F. p. 37. 



•^* This large group, consisting as it does of species, or perhaps forms, excee- 

 dingly diffJcult lo distinguish. may be classified in the following manner: 



1. Rostrata. — A small number have the stigma exlendcd into a long slender beak. 



2. Sarcoptcra. — Oihers have ihe column-wings fleshy. and curved downwards, 

 wiih a somewhat; glandular apex. All ihese agree in having the gland of the 

 pollen hard, horny and furnished with a triangular erect process on each side of the 

 sessile pollen-masses, 



3. Hymenoptera. — The remainder have neither a rosirate sligma nor fleshy co- 

 lumn-wings, and the pollen apparatus is in the usual siate. A few have dimorphous 

 flowers — Heterantha ; in the rest the flowers are all alike — Homoeuntha ; ihe last 

 again have column-wings nearly or very considerably obsolete — obsolela-^ in others 

 the column-wings are expanded into a conspicuous membrane — expansa. 



Undoubtedly this is quite an arliflcial arrengement, wilh ihe exception of the Ro- 

 strata and Sarcopiera: but, in ihe present state of the genus, with so much more to 

 learn as to thc true value of characters , and ihe exacl structure of the flowers of 

 many, no other than an ^rtiflcial arrengement seems to me to be attainable. 



Analysis of the species. 



I. Rostrata. 



Columnae alis integris 126. Bootluamm. 



,, Lipartitis haslatis, laciniis linearibus 127. Weddelli. 



„ „ bilobis hastalis lac. acuminatis 128. Schlimii. 



,, ., obtuse reniformibus 129. tigratum. 



II. Sarcoptera. 



Columnae alis bilobis. 



Labellum basi ei apice aequilalum 130. Carthaginense. 



,, angusiius, 



Cristae lubercula 5, v. plura 131. Utridum. 



3, dentlc. 2 adjectis 132. haematochilum. 



yi. 98 



