Page:Darwin - The various contrivances by which orchids are fertilized by insects (1877).djvu/317

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*Habenaria chlorantha, 43, 69; vessels of, 239, 244; viscidity of exterior surface, 251
 * Hance, Dr., on Catasetum, 197
 * Herbert, Dean, on Catasetum luridum and Myanthus, 196
 * Herminium monorchis, 59; fertilised by insects, 61; rostellum, 255
 * Hildebrand, F., on the ovules in Orchids, 172
 * Homologies of Orchids, 232
 * Hooker, Dr., on Listera, 3, 115; labellum of Calæna, 89; obligations to, 115, 128, 244; spiral vessels in Orchids, 235; variability of the labellum of Orchids, 238; on the rostellum, 254
 * Horwood, Mr., assistance from, 129


 * Insects, frequency of visits to Orchids, 33; attracted by bright colours, 275
 * Irmisch on Epipogium, 103; Neottia nidus-avis, 125; flower-bud of Cypripedium, 240


 * Krünitz, secretion of nectar by Orchis, 36
 * Kurr, on Orchids secreting nectar, 38; secretion from hairs in Cypripedium calceolus, 229; nectar secreted from bracteæ, 266


 * Labellum easily vibratile, 138; cup of, not secreting nectar in the Vandeæ, 269; excrescences on, 269; gnawed by insects, 270; its importance to the flower, 275; of Sarcanthus, 276
 * Ladies' slipper, 227
 * tresses, 106
 * Lælia, 146
 * cinnabarina, 148
 * Lepidoptera with attached pollinia, 30, 31
 * Leptotes, 146
 * Lindley, Dr., obligations to, 129; arrangement of Orchids, 128; on forms of Catasetum, 197; of Cycnoches, 224; homologies of Orchids, 235; on the number of genera and species, 279
 * Link on homologies of Orchids, 235, 238
 * Liparis pendula, vessels of, 239; clinandrum, 241
 * Listera, viscid matter, 251; crest of rostellum, 287
 * cordata, 124
 * ovata, structure of, 115–124; labellum, 276
 * Lycaste skinnerii, 155; pollen of 260


 * Malaxeæ, 128
 * Malaxis, viscid matter, 251; upper petals, 276
 * paludosa, transplanted, 32; structure of flower, 129–135; vessels, 239, 241; clinandrum, 241; pollen-tubes, 258; position of labellum affected by ovarium, 284
 * Malden, Rev. B. S., obligations to, 35, 64
 * Male flowers of Catasetum, 198
 * Marantaceæ, 238
 * Marshall, Mr., on sterility of transplanted Orchids, 32; Habenaria chlorantha, 72,
 * Masdevallia, clinandrum of, 241; sepals, 274; upper petals, 276
 * fenestrata, 135, 136, 142
 * Maxillaria, movements of pollinia, 156; number of pollen-grains in anther, 278
 * ornithorhyncha, movement of pollinia, 157, 159
 * Megaclinium falcatum, labellum of, 138
 * Ménière M., on insects visiting Orchids, 30; secretion of nectar by Coryanthes, 173; movement of Catasetum, 187, 191; the nectar-receptacle, 269
 * Microstylus rhedii, 132, 135
 * Miltonia clowesii, pollinia of, 154, 155
 * Modifioations in Orchids, 246
 * Moggridge, J. Traherne, on Ophrys scolopax, 52, 292; Ophrys apifera, 56, 58, 59; flowering of the Ophreæ, 59
 * Monaohanthus viridis, 196, 197, 198, 201
 * More, Mr. A. G., on fertility of Bee Ophrys, 55; Epipactis palustris, 39, 97, 99; obligations to, 106