NOTES ON PHILIPPINE ORCHIDS II 
BY 
Oakes AMES 
Dendrobium Bullenianum Reichenbach filius in 
Bot. Zeit. 20 (1862) 214. 
Dendrobium erythrowanthum Reichenbach filius in 
Gard. Chron. ser. 2, 2 (1874) 162. 
Dendrobium topaziacum Ames,Orchidaceae 5 (1915) 
140. 
In 1915 when Dendrobium topaziacum was proposed 
as anew species from the Philippines, | suggested that 
it might prove to be conspecific with D. Bullenianum 
Reichb.f. At that time, the Reichenbachian Herbarium 
was inaccessible and it was impossible to interpret JD. 
Bullenianum trom the original description. Indeed, there 
was reason to suspect that D. Bullenianum was not a na- 
tive of the Philippines because Reichenbach in referring 
to it as having come from Manila left room for doubt. 
In his monograph of Dendrobium, Fritz Kriinzlin did 
not remove this doubt, simply with a query citing Luzon 
as the source of the type. 
From a study of D. Bullenianum by means of the 
analytical drawings preserved in Reichenbach’s herba- 
rium, it is clear that J. topaziacum is referable to it. It 
is also clear that J. erythrovanthum is conspecific with 
D. Bullenianum. 
Dr. Kranzlin in his monograph of the genus Den- 
drobium in Engler’s Pflanzenreich extended the geo- 
graphical range of D. Bullenianum to the Samoan Islands 
on the evidence of specimens collected on Upolu by 
Reinecke (nos. 294 and 892). This is a rather remarkable 
extension of range. It is not at all improbable that the 
Samoan species will in the light of further research, be 
found distinct from the Philippine species. 
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