ORCHIDACE^ 



ACORIDIUM Nees <| Meijen. 



From the abundance of material that has been examined in 

 collections from the Philippine Islands it is clear that the sec- 

 tion Acoridium of Dendrochilum should be elevated to generic 

 rank. The exalate column, prominent rostellum and saccate or 

 concave labellum which is rigidly attached to the column are 

 differentiating characters that indicate the line of cleavage. The 

 following nomenclatorial changes are proposed. 



Acoridium affin^ Ames comb. tiou. Dendrochilum affine^T?^^^ 

 Orch. 2 (1908) 95. 



Acoridium anfractoides Ames comb. nov. Dendrochilum 

 anfractoides Ames Orch. 3 (1908) 13, t. 28. 



Acoridium auriculare^7?2^.s comb. nov. Dendrochilum auri- 

 culare Ames in Philipp. Journ. Sci. C. Bot. 4 (1909) 595. 



Acoridium binuangense Ames comb. nov. Dendrochilum 

 binuangense ^77i^-9 Orch. 6 (1920) 281. 



Acoridium cinnabarinum (Pfitz.) Ames comb. nov. Dendro- 

 chilum cinnabarinum PJitz. in Engl. Pflanzenreich IV. 50. II. B. 

 7 (1907) 104. 



Acoridium confusum Ames comb. nov. Dendrochilum con- 

 ixxsum. Ames in Philipp. Journ. Sci. C. Bot. 6 (1911) 41. 



Acoridium Curranii Ames comb. nov. Dendrochilum Cur- 

 ranii Ames Orch. 3 (1908) 15, t. 29. 



Acoridium Elmeri Ames comb. nov. Dendrochilum Elmeri 

 Ames in Elmer Leafl. Philipp. Bot. 5 (1912) 1558. 



Acoridium exile Ames comb. nov. Dendrochilum exile Ames 

 Orch. 2 (1908) 84. 



Acoridium Foxworthyi Ames comb. nov. Dendrochilum 

 Foxworthyi Ames Orch. 3 (1908) 8, t. 26. 



Acoridium hastatum Ames comb. nov. Dendrochilum has- 



t2itum.Ames Orch. 2 (1908) 99 cum ic. 



[80] 



