ORCHIDACEJE 



81 



1.5 mm. longi, 1.5 mm. lati, ad 

 basim utroque callus bilobatus. 

 Columna minuta, antice processu 

 rostelliformi. 



The leafless flower-shoot aris- 

 ing from the base of a pseudo- 

 bulb and the duplicative leaves 

 place this species in the section 

 Eudendrochilum. The labellum, 

 although devoid of a middle lobe, 

 has the characteristic calli at the 

 base of the lateral lobes of such 

 species as D. pwnilum, D. affine, 

 and D. simulacrum. The con- 

 formation of the flower is in gen- 

 eral that of the section Acori- 

 dium. As the vestiges of the 

 flower-scapes indicate, the latter 

 do not arise, as in the other spe- 

 cies described, from the summit 

 of a leaf-bearing pseudobulb. 

 This species is in a way a link 

 between the sections Acoridium 

 and Eudendrochilum, and there- 

 fore is of special interest and im- 

 portance. The species is named 

 in honor of Major-General Leonard Wood. 



Epiphyte, Mt. Halcon, at 6800-8500 ft. alt., November 15, 

 1906, E. D. Merrill (no. 5816). 



2. D. TENELLUM (Nees & Meyen) comb. nov. — Acoridium 

 tenellum Nees & Meyen Nov. Act. Nat. Cur. vol. 19, suppl. 1, 

 p. 131 (1843) ; Rolfe Orch. Rev. 12 : 220 (1904) ; Ames Orchi- 

 dace.e fasc. 1, 3, t. 1 (1905). — D.junceum Reichb. f. Otia bot. 

 Hamb. 54 (1878); J. J. Smith Rec. Trav. Bot. Neerl. l : 78 (1904). 



Dendrochilum Woodianum 



1, column; 2, flower; 3, petal; 4, labellum; 5, 

 pollinia. 



