BOTANICAL MUSEUM LEAFLETS 
HARVARD UNIVERSITY 
ORCHID STUDIES, X 
BY 
Louis O. Williams 
Orchids from America and Asia 
Altensteinia Rosei (Ames) L.O. Williams comb, 
nov. 
A a Rosei Ames in Proc. Biol. Soc. Wash. 35 (1922) 
81. 
The genus A a Reichenbach filius is referable to the 
older Altensteinia Reichenbach filius. This species has 
not been previously transferred. 
Prescottia tubulosa (Lindl.) L. O. Williams 
comb. nov. 
Cranichis tubulosa Lindley Gen. & Sp. Orch. PI. 
(1840) 451—Kranzlin in Arkiv for Botanik 16 (1920) 
Prescottia pachyrhiza Richard & Galeotti in Ann. 
Sci. Nat. ser. 3, 3 (1845) 31. 
? Prescottia Lindeniana Richard & Galeotti in Ann. 
Sci. Nat. ser. 3, 3 (1845) 31. 
Galeogiossum prescottioides Richard & Galeotti in 
Ann. Sci. Nat. ser. 3, 3 (1845) 31. 
Prescottia Galeottii Reichenbach filius in Linnaea 
19 (1847) 377. 
A photograph of the type of Cranichis tubulosa and 
of Lindley’s analytical sketch of the species leaves no 
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