498 ME. H. X. BIDLET ON THE 



elata, Richard, Oreh. Maur. p. 78, t. 11. fig. 3. — Epidendrum 

 dipterum, Sieber, Herb. Maur, no. 210. 



Madagascar? LyalV. in Herb. Keiv. Mauritius, Sieber, Herb. 

 Maurit. 210 ! in Herb. Brit. Mus. Bourbon, Richardl in Herb. 

 Lindley. Sine loc, Thouars ! in Herb. Brit. Mus. 



Aerides coriaceum, Swartz, Schrad. Liar. Bot. 1799, p. 234 ; 

 Willd. Spec. Plant, iv. p. 131. — Saccolabium coriaceum, Lindley, 

 Gen. and Sp. Orch. PI. p. 224, from Madagascar, is quite inde- 

 terminable. 



NKOTTIEiE. 



Coetmbis, Thouars. 



Corymbis, Thouars, Orch. lies Afr. table i. — Corcurborchis, 

 ibid. — Corymborchis, Thouars, fide Blume. — Hysteria, Reinwardt, 

 Blume Cat. Hort. Buitenz. p. 99. — Rhynchanthera, Blume, Bijir. 

 fig. lxxviii. — Macrostylis, Kuhl Sf Hasselt. ed. Breda, fasc. 1, t. 2. 



A small genus of six or seven species scattered over the tropics 

 of both "Worlds. 



C. coBYMBOSA,77<0ttars, Orch. lies Afr. tt. 37, 38. — C. Thouarsii, 

 Reichb.f.in Bot. Zeit. 1819, p. 868.— C. disticha, Lindley, Folia 

 Orchidacea (pars). — Corymborchis Thouarsii, Blume, Orch. 2nd. 

 Archipel. p. 126, pi. 44. fig. 1, a-c. 



Madagascar, Nossibe, Perville no. 142. Bourbon, Thouars. 

 "West Africa, Ins. St. Thomas, Don in Herb. Brit. Mus. 



This species is nearly allied to C. veratrifolia, Blume, with 

 which it was confused by Lindley under the name of C. disticha, 

 from which it is distinguished by its smaller flowers and always 

 persistent column and robuster habit. 



Blume quotes Corymborchis as the original name given by 

 Thouars to the genus ; but in the copy of the ' Orchides d'lles 

 d'Afrique ' in the British-Museum Library, the name is Corcur- 

 borchis in the synoptical table and Corymbis on the plate. 



Pogonia. 

 The only species of this genus that occur in the tropics of the 

 Old World belong to the section Nervilia. Two are found in 

 the Mascarene Islands, P. Thouarsii, Blume (Arethusa simplex, 

 Thouars, Aplostellis ambigua, Rich., HaplostelUs truncata, 

 Lindley), a native of Mauritius ; and P. Renschiana, Reichenbacb, 

 Otia Hamburg, i. p. 73, which was found in Nossibe by Hilde- 

 brandt, no. 3383. 



