352 OECHIDE^. [Liparis: 



Perianth purple-white and green. Column-wings angular-toothed . . 1. -£• nervosa. 



Perianth all green. Column-wings not angular • • •. 2. L. odorafa. 



Leaves rather thick, 8 or 10 times as long as hroad.' Perianth scarcely 1 



line. Labellum without tubercles 3- -^^ longipes. 



1. L. nervosa, i«W^. Gen. et Sp. Orch. 26. Stems short, slightly 

 thickened at the base. Leaves 2 or 3, rarely 4, thin, ovate or oblong, acumi- 

 nate, 2 to 4 in. long. Eaceme 8 to 6 in., loose. Sepals and petals of a pale 

 purple, about 4 lines long, the 2 lower sepals narrow-oblong, the upper one 

 and the petals linear. Labellum greenish-purple, ovate or obovate, obtuse or 

 emarginate, with 2 often stipitate tubercles at the base. Column white, the 

 wings forming an acute angle or tooth on each side. 



In clefts of rocks, Victoria Peak, Champion; in a ravine of Mount Parker, Wilford; 

 also Hance. In Japan. 



2. L. odorata, Lindl. Gen. et Sp. Orch. 36. Very near the L. nervosa, 

 and perhaps a variety, but the column has an even not an acutely toothed 

 margin ; the sepals are oblong and very fleshy ; the flowers also appear to be 

 whole-coloured and gi-een. 



Hongkong, Champion. Also at Chekiou in China, and in the Indian Peninsula. The 

 species requires further investigation when more satisfactory specimens shall have been ob- 

 tained. . 



8. Ii. longipes, lAtidl. Gen. et Sp. Orch. 30 ; Wall. PL As. Rar. i. t. 35 ; 

 Wight, Ic. t. 906. Stems longer and more readily thickening at the base 

 . than in the last. Leaves 3 or 8, rather thick, Unear-oblong or lanceolate, 6 

 to 8 in. long, and -I to f in. broad. Eaceme 4 to 6 in. long, with numerous 

 small flowers, white, with a yellow labellum. Perianth not 1 line long. Column 

 narrowly winged at the top. Labellum ovate, fleshy, free from the column, 

 without tubercles at the base. 



In clefts of rock, Champion. In India from Ceylon and the Peninsula to Nepal and 

 Khasia. 



Champion's collection contains a single specimen of what appears to be a distinct species 

 of Liparis allied to L. nervosa, but without the tubercles at the base of the labellum. The 

 specimen is, however, not sufficient for accurate determination. 



2. DIENIA, Lindl. 



Chai-acter and habit of Liparis, except that the column is short and straight, 

 and the labellum is very concave, adnate to the column at its base, without 

 tubercles. 



A small genus dispersed over tropical and central Asia, and Mexico. 



1. D. congesta, Lindl. Gen. et Sp. Orch. 23. Stem veiy shortly leafy, 

 scarcely thickened at the base, 1 ft. high or more, including the raceme and 

 long, peduncle. Leaves (of Uparis nervosa) ovate-lanceolate or oblong, acu- 

 minate, 4 to 6 in. long. Eaceme dense. ■ Flowers small, (white, with a yellow 

 labeHum?). Sepals about l^ lines long, linear-oblong. Petals as lono- but 

 very narrow. , Labellum shorter, very broad, concave or almost sacoate^'with 

 3 short thick lobes at the end. Column shorter, with 2 nai-row wngs at the 

 top. 



Hongkong, Hance, Marland. In Nepal, Khasia, and S, China. 



