0RXITH0CEPHALU3 



INDEX. 



Srr.ENGEL. 



299 



Oniiihocephalus, 160 

 Ovai'ia of Orchids, 284 

 Oxeuden, Mr. G. C, obligations to, 

 25 ; ou Epipactis purpurata, 102 



Parfitt, Mr., on attached pollinia, 31 

 Paiker, Mr. R., obligatious to, 129 

 Pedicel of pollinium, 253 ; elasticity 



of, 283 

 Percv, Dr., analysis of labellura of 



W'arrea, 270 

 Veridylus viridis, secretion of nectar, 



43, 63 ; rostollnni, 255 

 Petals, nsr>s of, 274 

 riiaius, 146 



grandifolius, 280 



Fli(danopx,is, viscidity of stijrnia, 



153; movement of pollinia, 159; 



labellnm, 276 



amahilis, 159 



grandijiora, 150 ; projection of 



lab'ellum, 269 

 riatanthera, 75 



chlorantha, 69 



dilatata, 77 



flava, 76, 77 



■ hookeri, 75 



• hyperborea, 76; self-fertile, 291 



Fleurotliallis ligulata, 135 



■ prolifera, 135 



Pogonia ophioglossoides, 86 

 Poilen-massps, rudimentary in Mono- 



chanthus, 201 ; gradation of, 257, 



2S8 

 Pollea-tubes emitted from anther, 



258 

 Pollinia, movements of, in Orchis 



mascula, 12-15; in 0. pyrami- 



dalis, 21 ; of the Vandex, 154 ; 



of Catasetum, ejection of, 184; 



attachment to rostellum, 251 ; 



gradation, 2.i7; movements, 271 

 f'terostylis, nectary of, 232 



longiflora, 87, 89 



trullifolia 86, 88 ; imperfect 



fertilisation in New Zealand, 280 



Rodger?, Mr., obligations to, 129 ; 

 on Myanthus and Monochanthus, 

 196 ; tecretion of nectar in Or- 

 chids, 265 ; in Vanilla, 266 



liodrignezia secunda, 159 



suavcolens, m<»vemcnt of pol- 

 linia, 156, 159 



Rohrbadi, Dr., on Epipogium gmc' 

 lini, 103 



Rostellum, a single organ in the 

 OphrecB, 45 ; of the Vandex, 

 150; aborted, 242; gradation of, 

 247 ; of Apostasia, 248 ; diversity 

 of structure, 250 ; crest of, in 

 the Ophrex, 255 ; in Catasetum, 

 256 



Rucker, Mr., obligations to. 129, 

 ISO, 192, 208 



Saccolahium, viscidity of stigma, 



153, 156 

 Saint-Hilaire, A. de, on pollen of 



Orchids. 259 

 Sarcanthus, labellura of, 276 



parishii, 142 



teretif alius, pollinia of, 154, 



156; viscidity, 268 

 Scheinsafthlunien, 37 

 Schomburgk, Sir R., on Catasetum, 



196 

 Scott, Mr., on flowers of Acropera, 



168, 172 ; of Gongora, 169 ; nec- 



tor-receptacle, 269; number of 



seeds in capsule of Acropiera, 278 ; 



prepotency of pollen. 289 

 Scudder, Mr., on Fogonia ophio- 

 glossoides, 86 

 Secretion of nectar, 36, 229, 265 

 Seeds, production and number of, 



276, 277 

 Selenipedium palmifolium, 232 

 Self-fertilisation, summary on, 293 

 Sepals, uses of, 274 

 Serapias cor dig era, 27 

 Sexes of Orchids, 196 

 Smith, Sir James, on position of 



flowers in Malaxis, 1 29 

 , Mr. G. E., on bees visiting 



the Bee Oplirys, 55 

 Sohralia macrantha, 91 

 Sophronitis, 146 

 Spider Ophrys, 50 

 Spiranthes audralis, 114; labellnm, 



275 ; self-fertile, 291 

 autumvalis, structure of flower, 



106-114 ; vessels of, 239 



cermca, 111 



gracilis. 111 



Sprengel, C. K., on fertilisation of 



Orchis miliiaris, 36 ; secretion 



of nectar by Orchis, 36 ; on Epi- 



