ORXITHOCEPHALUS. 



INDEX. 



SPRENGEL. 



299 



Omithocephalus, IGO 

 Ovaria of Orchids, 284 

 Oxeucl(;ii, Mr. G. C, obligations to, 

 25; ou Epipactis purpurata, 102 



Parfitt, IMr., on attaulied poUinia, 31 

 Parker, JMr. R., obligations to, 129 

 Pedicel of pollinium, 253 ; elasticity 



of, 283 

 Percy, Dr., analysis of labellum of 



Warrea, 270 

 Peristylus viridis, secretion of nectar, 



43, tJ3 ; rostelliun, 255 

 Petals, uses of, 274 

 Fhaius, 14tj 



gi'and if alius, 280 



Fhalanopsiis, viscidity of stigma, 



153 ; movement of polliuia, 15U ; 



labellum, 27(1 



amabili.-^, 15it 



• ■ grandijiora, 159 ; projection of 



labellum, 2(J9 

 Plataitthera, 75 



chlorantha. 69 



dilatata, 11 



flava, 76, 77 



■ hookeri, 75 



• hyperborea, 76; self-fertile, 291 



Pleurotltallis ligulata, 135 



proUfera, 135 



Foijonia opUioglossoides, 86 

 Pollen-masses, rudimentary in Alono- 



chanthus, 201 ; gradation of, 257, 



288 

 Pollen-tubes emitted from anther, 



258 

 Polliuia, movements of, in Orchis 



mascuUi, 12-15 ; in 0. pyrami 



dalis, 21 ; of the Vande;e, 154 



of Cifasetum, ejection of, 184 



attachment to rostellum, 251 



gradation, 257; movements, 271 

 Plerostylis, nectary of, 232 



loiKjijiora, 87, 89 



trutlij'olia. 86, 88 ; imperfect 



fertilisation in New Zealand, 2,S0 



llodger.-', IMr., obligations to, 129 ; 

 ou Mijanthus and Monochanthus, 

 196; becretion of nectar in Or- 

 cliids, 265 ; in Vanilla, 266 



liodriguezia secuiida, 159 



suaveolens, movement of pol- 



iiuia, 156, 159 



Rohrbach, Dr., on Epipogium gm".- 

 lini, 103 



Rostellum, a single organ in the 

 Ophreie, 45 ; of the Vandae, 

 150 ; aborted, 242 ; gradation of, 

 247 ; of Apostasia, 248 ; diverbity 

 of structure, 250 ; crest of, in 

 the Ophrex, 255 ; in Catasetum, 

 256 



Rucker, Mr., obligations to. 129, 

 180, 192, 208 



Saccolabium, viscidity of stigma, 



153, 156 

 Saint-Hilaire, A. de, on pollen cf 



Orcliids, 259 

 Sarcanthus, labellum of, 276 



jKu-ishii, 142 



terttifolius, polliuia of, 154, 



156 ; viseiditj', 268 

 Scheinsaftblumeii, 37 

 Scliomburgk, Sir R., ou Catasetum, 



196 

 Scott, Mr., on flowers of Acropera, 



168, 172; if Gongora, 169; nec- 



t.ir-receptacle, 269; number of 



seeds iu capsule of J.cTope)-a, 278 ; 



prepotency of poUeu. 289 

 Scudder, Mr., ou Pogoida ophiit- 



glossoides, 86 

 Secretion of nectar, 3G, 229, 265 

 Seeds, production aud uumber of, 



276, 277 

 Selenipedium pahnifolium, 232 

 Self-feitilisatiou, summary on, 293 

 Sepals, uses of, 274 

 Serapias cordigera, 27 

 Sexes of Orchids, 196 

 Smith, Sir James, on position of 



flowers in Maluxis, 129 

 , Mr. G. E., on bees visiting 



the Bee Oplirys, 55 

 Sobralia vmcrnntliu, 91 

 Sojjhronitis, 146 

 Spider Oplirys, 50 

 Hpiraidhes (ludralis, 114; labellum, 



275 ; self-fertile, 291 

 autumitalis, structure of flower, 



106-114 ; vessels of, 239 



cernua. 111 



• gracilis, 111 



Spreilgel, C. K., on fertilisation of 

 Orchis mililaris, 36 ; secretion 

 of nectar by Orchis, 36 ; on Epi 



