OUXITHOCErilALUS . 



INDEX. 



299 



Ornithoeephalus, 160 

 Ovaria of Orchirls, 284 

 Oxenden, Mr. 6. C, obligations to, 

 25; on Epipactis purpurata, 102 



Parfitt, Mr., on attached poUinia, 31 

 Parker, Mr. R., obligations to, 129 

 Pedicel of polliuium, 253; elasticity 



of, 283 

 Percy, Dr., analysis of labcUura of 



Warrea, 270 

 Peristylus viridis, secretion of nectar, 



43, 63 ; rostellum, 255 

 Petals, uses of, 274 

 Fhaiue, 146 



grandi/oUus, 280 



I'halanopsis, visciility of sligma, 



153 ; movement of polliuia, 159 ; 



labellum, 276 



amabilis, 1 5!) 



grandiflora, 159 ; piojoution of 



labellum, 260 

 riatantliera, 75 



cMorantha, 69 



dilatata, 77 



flava, 76, 77 



■ hoolteri, 75 



hyperhorea, 76; self-fertile, 291 



Pleurotliallis ligulata, 135 



prolifera, 135 



Pogonia ophioglossoidei, 86 

 Pollen-masses, rudimentary in Monn- 



chanthus, 201 ; giadaliou of, 257, 



288 

 Pollen-tubes emitted from antlier, 



258 

 PoUinia, movements of, in Orcliis 



mascula, 12-15; in 0. pyrami 



dalis, 21 ; of the Vandem, 154 



of Catasetum, ejection of, 184 



attachment to rostellum, 251 



gradation, 257; movements, 271 

 Pterostylis, nectary of, 232 



longijlora, 87, 89 



trullifolia. 86, 88 ; imperfect 



fertilisation in New Zealand, 280 



llodgers, Mr., obligations to, 129; 

 on Myanlhus and Monochardhus, 

 196; feoretioQ of nectar in Or- 

 chids, 265 ; in Vanilla, 266 



Rodrigueiia secunda, 159 



euaveolens, rauvcment of pol- 



linia, 156, 159 



Eohrbach, Dr., on Epipogium gme- 

 lint, 103 



Rostellum, a single organ in the 

 Ophrese, 45 ; of the Vandeas, 

 150; aborted, 242; gradation of, 

 247 ; of Apodasia, 248 ; diversity 

 of structure, 250 ; crest of, in 

 the Ophrese, 255 ; in Cataeetum, 

 256 



Rucker, Mr., obligations to, 129, 

 180, 192, 208 



Saccolabium, viscidity of stigma, 



153, 156 

 Saint-Hilaire, A. de, on pollen of 



Orchids, 259 

 Sarcanthus, labellum of, 276 



parieMi, 142 



teretifoUas, poUinia of, 154, 



156; viscidity, 268 

 Scheinsaffblumen, 37 

 Schomburgk, Sir R., on Catasetum, 



196 

 Scott, Mr., on flowers of Aaropera, 



168, 172 ; of Gongora, 169 ; neo- 



tnr-receptacle, 269; number of 



seeds in capsule of Aeropera, 278 ; 



prepotency of pollen. 289 

 Scudder, Mr., on Pogonia opTiio- 



glossoidei, 86 

 Secretion of necfar.'36. 229, 265 

 Seeds, production and number of, 



276, 277 

 Selenipedium palmifoliam, 232 

 Self-fertilisation, summary on, 293 

 Sepals,"u3es of, 274 

 Serapias cordigera, 27 

 Sexes of Orchids, 196 

 Smith, Sir James, on position of 



flowers in Malaxis, 1 29 

 , Mr. G. E., on bees visiting 



the Bee Ophrys, 55 

 Sobralia macrantha, 91 

 Sophronitis, 146 

 Spider Ophrys, 50 

 Spiranthes auxtralis, 114; labellnm, 



275 ; self-fertile, 291 

 ■ autumvalis, stmcture of flower, 



106-114; vessi-ls of, 239 



cernua, 111 



gracilis. 111 



Sprengel, 0. K., on fertilisntion of 



Orchis militarie, 36 ; secretion 



of nectar by Orchis, 36 ; on Jipi- 



