SCHEDULAE ORCHIDIANAE 
NO. 8 
New or Noteworthy Species of Orchids 
from the American Tropics 
BY 
OAKES AMES and CHARLES SCHWEINFURTH 
N ew species of orchids from tropical America receive 
attention in this paper. The sequence of the genera 
follows closely the system proposed by Pfitzer in Engler and 
Prantl’s “Die natiirlichen Pflanzenfamilien.” Unless indi¬ 
cated otherwise, the types of the new species have been 
deposited in the herbarium of the senior author. 
Habenaria caldensis Krdnzl. in Engl. Bot. Jahrb. 16 
(1892) 128. 
Habenaria paludosa Rodr. Gen. et Sp. Orch. Nov. 1 
(1877) 153. 
Several specimens of a tall Habenaria, from British 
Guiana mostly in fruit, are undoubtedly referable to this 
Brazilian species. They differ, however, from the type in 
the following particulars. 
Stems up to 10.78 dm. tall, instead of a maximum of 
6 dm. Leaves about ten in number, instead of two to four. 
Raceme about 14 cm. long, instead of 3-10 cm. Anterior 
lobe of the petals a little shorter than the posterior. The 
reverse is true of typical Habenaria caldensis, but the de¬ 
gree of relative length apparently is a variable factor. The 
labellum is a little smaller than typical; lateral lobes about 
7.4 mm. long, instead of 9-11 mm.; middle lobe about 5.8 
mm. long, instead of 7-8 mm. 
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