ORCHID CONFERENCE. 128 



*0. membranaceum, 1881, xv., 753. 



*0. mulus var., 1883, xix., 469. 



-0. nebulosum, 1867, 572, 



*0. nebulosum candidulum, 1867, 710. 



*0. nevadense, 1881, xvi., 461. 



*0. Oerstedii, 1877, vii., 811. 



*0. odoratum, 1881, xv., 337. 



*0. Pescatorei, 1884, xxii., 332. 



*0. Phalaenopsis, 1872, 832. 



*0. polyxanthum, 1881, xvi., 461 ; 1883, xix., 761. 



*0. radiatum, 1865, 746. 



*0. Koezlii, 1873, 1303. 



*0. Kossi majus var. rubescens, 1884, xxi., 345. 



*0. Kuckerianum, 1873, 105. 



*0. Schliperianum, 1865, 1082. 



*0. triumphans, 1867, 516. 



*0. vexillarium, 1872, 667 ; 1873, 644. 



*0. Wanierianum, 1865, 579. 



*0. Wilckeanum, 1884, xx., 640. 



224. OEONIA, Lindley. 



Four or five species, wild in Madagascar. They are 

 related to Angraecum. 



225. Oncidium, Swarz. 



Over 250 species are known, from Tropical America. 

 Brazil and Bolivia, West Indies, and Mexico. Many 

 showy species are in cultivation. They vary much 

 in habit, the sections being " small lipped " 

 (microchilia), " Iris-leaved " (equitantia), " round- 

 leaved " (teretifolia), and " flat-leaved " (planifolia). 

 0. papilio is the " Butterfly Orchid," and one of the 

 first of Orchids to attract public attention in England. 

 See Orchid Album, t. 1, 12, 32, 104, 129, 137, 183 ; 

 Bot. Mag., t/5632, 2773, 3393, 4130, 3568,777, 

 1491, 2203, 2990, 3109, 3486, 3499,3581, 3705, 

 3712, 3752, 3806, 3807, 3836, 5193, 6138, 6254 

 6278, 6322. See also Gard. Chron., 1879, xii., 43. 

 The following are figured in Gard. Chron.: 



*0. bifrons, 1857, 84. 



*0. candidiun, 1883, xx., 233. 



*0. Forbesii, 1879, xi., 525. 



*0. Forbesii var. Borwickianum, 1879, xi., 525. 



