MB. G. BENTIIAM ON OUCHIDE-E. 313 



there appear on the old stems lateral clusters which must probably 

 be considered as leafless flowering branches. In Tetrayamestum 

 modestum, Eeichb. f., which has all the characters of Ponera, the 

 year's shoot proceeds from the end of that of the previous year, 

 making the persistent terminal cluster of flowers appear lateral, 

 as in Seaphyglottis ; whilst in other species the new shoot appears 

 as if in continuation of the old one, without any persistent remains 

 of the raceme. Eeichenbach unites Scaphy glottis, Pcepp., with 

 Ponera, in which I cannot concur, the pollinary apparatus being 

 quite at variance with that of Laelieffi. Ponera adendrobium, 

 Beichb. f, with really axillary inflorescence, appears to me to be 

 a species of Pleuranthium; but the flowers in our specimen are too 

 much withered to admit of positive determination. 



Pinelia, Lindl., is a dwarf Brazilian plant, only known from the 

 drawing and memorandum of Pinel in herb. Lindl. Eeichenbach 

 once referred it to Restrepia ; but the pseudobulbs, the labellum 

 actuate to the column, and the pollinary apparatus arc quite at 

 variance with the characters of that genus, and seemto show a close 

 affinity to Sophroniiis, differing chiefly in the pollen-masses, four 

 instead of eight. 



Harticegia, Lindl., is a single Central-American species, with 

 the mentum of Ponera, and the habit and adnate labellum of the 

 Amphiglottis group of Epidendrum. 



Epidendrum itself, as now limited, is still an enormous geuus, of 

 which nearly 400 species, good or bad, have been described. It wa3 

 well worked up by Lindlcy in his ' Folia Orchidacea; 'but since then, 

 owing chiefly to the exertionsof horticultural collectors, a consider- 

 able number of new species have been added, and more abundant 

 materials supplied for judging of the old ones. Lindley divided the 

 genus into twelve sections ; but from these must be deducted four 

 small ones, Diacrium, Hormidium, Lanium, and Pleuranthium, which 

 have been above mentioned as distinct genera, and Epidadium, of 

 which the typical species, E. aurantiacum,~BvLtem., seems to be re- 

 ferrible rather to Cattleya. The remaining sections, comprising the 

 great mass of the species, appear to be reducible to four primary 

 sections and a number of subordinate less definite series. These 

 sections are : — 1. Barhcria, and 2. Encyclia, with the labellum ad- 

 nate only at the base or below the middle of (he column, the former 

 containing but very lew species, forming Knowies and AV'estcott's 

 proposed genus Barheria ; whilst the larger group, Encyclia, may 

 be subdivided into three series, and would include the proposed 



2 a2 



