ORCHIDACE.E 



from the species illustrated in the Botanical Register by slight 

 differences discoverable in the flower. Hooker's species was im- 

 ported from "Puio Copang, in the Chinese seas." 



Luzon, W. S. Lyon SO, 1908. Referred by the collector to Aerides quin- 

 quevulnerum Lindl. with the following note: "But the wounds i.e. spots 

 (now faded), are sometimes two or three instead of one on each perianth 

 segment."" In addition to the specimens collected by Lyon I possess a 

 number of plants, presumably discovered in Luzon by a native collector. 

 This appears to be the species figured by Petiver in his Gazophylacium 

 (plate 1 03, fig. 1 1 ) from Camelli's plants gathered in Luzon and published 

 by Ray in Historia Plantarum. 



81. LUISIA Gaudich. 



Probably thirty species constitute the genus, of which four come 

 from the Philippine Islands. All of them are endemic with the 

 exception of Luisia teretifolia, which is a native of Java, Am- 

 boina, New Caledonia, and Ceylon. 



1. Luisia Foxworthii Ames Orchidace^e 2 : 222. 

 Luzon, Polillo. 



2. Luisia Ramosii Ames in Phil. Journ. Sci. 6 : 55. 

 Luzon. 



3. Luisia teretifolia Gaudich. Voy. Uranie 427, t. 37. 

 Luzon, Palawan, Leyte, Mindanao, Negros? 



4. Luisia valida Reichb.f. in Bonpl. 10 : 335. "Tepalis oblongo 

 ligulatis sepala paulo excedentibus, labello bene ventricoso tri- 

 fido, laciniis posticis triangulis erectis juxta columnam, lacinia 

 antica hastato triangula excavata. — Folia valida." Reichb. f. 

 /. c. This species is unknown to me. L. teretifolia is well charac- 

 terized by linear-oblong, obtuse petals, which slightly exceed the 

 upper sepal in length. The labellum is panduriform, and con- 

 cave near the column. Reichenbach's description of the petals of 

 L. valida applies equally well to the petals of L. teretifolia; in 



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