ME. G. BENT1IAM ON OECHIDE.E. 297 



subgenera or genera, which have, however, subsequently been re- 

 united with it. Lindley divided it into ten sections, of which 

 Aporwm alone (including Oxystophyllum and Macrostomum of 

 Blume, and Schismoceras of Presl) has any really distinctive cha- 

 racters, the others all pass much into each other ; but, taking the 

 most marked of them, I have for the ' Genera Plantarum ' reduced 

 Lindley's ten sections to seven, dividing Stacliyolium into six 

 and Eudmdrobium into five subordinate series. Of these sections 

 there are two only which call for any observations on the present 

 occasion: — 1. Sarcopodium , reduced to Lindley's § 1 of his genus 

 of that name, was founded on D. amplum, Wall., and two or 

 three allied East-Indian species with the peduncle to all appear- 

 ance terminating short two-leaved stems, and bearing a single 

 large flower. I have not had any opportunity of examining living 

 specimens ; but in the dried ones I can find nothing to show that 

 the peduncle is not really terminal. Lindley's § 2 of Sarcopo- 

 dium, with the leafless scapes proceeding from the rhizome, forms 

 the section Sectochilus of Bullophyllum. 2. Cadetia contains 

 about a dozen mostly small species, with short stems or pseudo- 

 bulbs proceeding from the creeping rhizome or caudex, and bear- 

 ing each an apparently terminal single leaf with one or more 

 axillary pedicels, almost as in Pleurothalleae, except that here, as 

 in most species of the section Stacliyolium, the inflorescence, 

 although apparently terminal, is in fact in the axil of an almost 

 terminal leaf. 



Latourea, a single New- Guinea species, was described and 

 figured by Blume chiefly from notes and a drawing made on the 

 spot by Latour, and has not been reexamined by any other 

 botanist. It is a handsome large-flowered plant, distinguished 

 from Dendrobium only by the auricles at the base of the labellum 

 encircling the column and united behind it. Further investiga- 

 tion may possibly induce its union with Dendrobium. 



Bulbopliyllum, Thou, (a name altered by some subsequent 

 purists to Bolbopliylluni), is a genus of about 80 species, differing 

 from Dendrobium generally, but not always, by a more versatile or 

 articulate labellum, and by prominent brachia or teeth to the 

 column, and constantly by the inflorescence, the leafless scapes 

 arising from the rhizome, either at the base of, or at a distance 

 from, the leaf-bearing stems or pseudobulbs. The two pollen- 

 masses of each cell are in several species unequal in size or more 

 tor less united into one, which has not to my knowledge been 



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