ORCHID CONFERENCE. 



120 



Gard. Chron., 1879, xii., 75; Bot. Mag.,' t. 4479 

 (Cycnoches); Bot. Beg., 1841, t. 69 (Houlletia). 



259. Polystachya, Hooker. 



Forty species, wild in Tropical and Southern Africa, 

 rarely found in Asia and America. But few species 

 are worth culture. See Gard. Chron., 1879, xii., 

 75 ; Bot. Mag., t. 3707, 4161, 5586. 



260. Ponera, Lindley. 



Four or five species, wild in Mexico and Central America. 

 Near Epidendrum. See Gard. Chron., 1883, xix., 

 764 ; xii., 107. 



261. Ponthieva, B. Brown. 



Ten or twelve species, wild in Tropical and Sub-tropical 

 America. Terrestrial herbs. Near Neottia. See 

 Bot. Mag.,t. 842 (Neottia), and 6337 ; Gard. Chron., 

 1879, xii., 107. 



262. Prasophyllum, R. Brown. 



Twenty- six species, wild in Australia and New Zealand, 

 and in New Caledonia. Terrestrial herbs. Not 

 showy. 



263. Preseottia, Lindley. 



Twenty species, from Tropical America, Brazil, West 

 Indies, and Mexico. Not showy. See Gard. Chron., 

 1879, xii., 107 ; Bot. Reg., t. 1915 ; Lodd., Bot. 

 Cab., t. 990. 



Promen^a, Orchid Album, t. 7. (See Zygopetalum.) 



264. Pseudocentrum, Lindley. 



Four or five species, wild on the Andes of Southern and 

 Central America, and in Jamaica. Not showy. 

 See Gard. Chron., ,1879, xii., 107. 



Psittacoglossum (see Maxillaria), Gard. Chron., 1879, 

 xii., 107. 



265. Pterichis, Lindley. 



Six species, wild in Tropical and Southern America. 

 Terrestrial herbs. Not showy. 



266. Pterogossaspis, Reichenbach f. 



One species, found in Abyssinia. 



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