Page:Darwin - The various contrivances by which orchids are fertilized by insects (1877).djvu/320

300

mormodes.

INDEX.

organs.

300

• pactis latifolia, 101; Listera, 115, 123; colours attracting insects, 275; value of his work, 275
• Stamens in Orchids, 242
• Stanhopea, pollinia of, 155; labellum, 276
• —— devoniensis, 171
• —— oculata, 171
• Stelis, use of the sepals, 274
• —— racemiflora, 135
• Sterility of English Orchids, 35
• Stigma, viscidity of, in the Vandeæ, 152; utriculi, 197; gradation, 248; structure, 249
• Stipa, movements of, 273
• Structure, diversity of, 282, 285
• Structure, importance of trifling details, 286, 287

 

• Thelymitra, self-fertile, 291
• —— carnea, 127; self-fertile, 280
• —— longiflora, 127
• Thomson, R. B., on Goodyera repens, 105
• Tilley, H. A., on Vanilla aromatica, 91
• Trevelyan, Sir C., on Bombus with attached pollen-masses from Cattleya, 145
• Treviranus on the secretion of nectar, 41; on Bee Ophrys, 56
• Trimen, R., obligations to, 40; on Bonatea speciosa, 76, 77; Disa grandiflora, 77, 78
• Turnbull, Mr., obligations to, 129
• Tway-blade, 115

 

• Uropedium, 240
• Utriculli of stigma, 197, 218

 

• Vandeæ, 156
• ——, structure of, 149; pollinia, 253, 258
• Vanilla aromatica, 90
• Vanillideæ, 90; few seed capsules produced, 281
• Veitch, Mr. J., obligations to, 129, 180, 220
• Vessels, spiral, of Orchids, 235
• Viscidity of disc in British Ophreæ, 35; in Catasetum, 190
• —— of rostellum and stigma, 248, 249

 

• Waetcher on fertilisation of the Orchids, 2
• Walker, Mr. F., obligations to, 100
• Wallis, Mr., obligations to, 129
• Warrea, 155; analysis of labellum, 270
• Weale, J. Mansell, on Habenaria, 76; Bonatea, 77; Disa and Disperis, 78; Disa macrantha, 290
• Weddell, Dr., on hybrids of Aceras, 26
• Wright, Mr. C, on the movement of pollinia, 156

 

• Zygopetalum mackai, 155