Page:Darwin - The various contrivances by which orchids are fertilized by insects (1877).djvu/316

296

dendrobium.

INDEX.

habenaria.

296

• Dendrobium chrysanthum, structure of, 138–142; nectary, 265
• —— formosum, 142
• —— speciosum, partially sterile, 281
• —— tortile, 142
• Descent, lines of, 262–265
• Dickie, Prof., obligations to, 124
• Disa, secretion of nectar, 265
• —— cornuta, 78
• —— grandifiora, 77; partially self-sterile, 281
• —— macrantha, 78; partially self-fertile, 290
• Disc, viscidity, of, in the Ophreæ, 43; in Catasetum, 190; double in the Ophreæ, 254; of Gymnadenia conopsea, 272
• Disperis, secretion of nectar, 265
• Duchartre, M., on Catasetum and Myanthus, 196
• Dyer, Mr. Thiselton, obligations to, 175

 

• Epidendreæ, 142; few seed capsules produced, 281
• Epidendrwm cochleatum, viscid secretion of, 249
• —— floribundum, 146; viscid secretion, 249
• —— glaucum, 146
• Epipactis, vessels of, 239; viscidmatter, 251
• —— latifolia, 100, 101; pollen, 259; fertilised only by wasps, 282; use of knob of anther, 287
• —— microphylla, 102
• —— palustris, structure of flower, 93–100; labellum, 275
• —— purpurata, 102
• —— rubiginosa, 102
• —— viridiflora, 102; self-fertile, 291
• Epipogium gmelini, 103
• Eulophia viridis, 156; nectary of, 269
• Evelyna, nectary of, 265
• —— carivata, 146; vessels of, 239; clinandrum, 241

 

• Farrer, T. H., obligations to, 46; on Bee Ophrys, 55; Peristylis viridis, 63
• Fertilisation, summary on, 290
• Fertility of English Orchids 33
• Fitzgerald, R. D., on Pterostylis longifolia, 89; Caladenia dimorpha, 89; Acianthus fornicatus, and exsertus, 90; Vanilla aromatica, 91; Spiranthes australis, 115; Thelymitra carnea and longifolia, 127; numbers of Orchideæ collected near Sydney, 279; self-fertilisation of Thelymitra carnea, 280; Dendrobium speciosum, 281
• Flowers, use of external envelopes, 274
• Fly Ophrys, 46
• Frog Orchis, structure of flower, 62; secretion of nectar, 63

 

• Galeandra funkii, 155
• Gärtner on viscid matter of stigma, 249; pollen-grains in Orchids, 288
• Gerard, M. M., pollinia adhering to longicorn beetle, 16
• Glossodia, 237
• Gongora, labellum of, 276
• —— atro-purpurea, 169
• —— maculata, 168
• —— truncata, 169
• Goodyera, vessels of, 239; caudicle in a nascent condition, 260
• —— discolor, 105
• —— pubescens, 105
• —— repens, 103, 105
• Gordon, Rev. G., obligations to, 103
• Gosse, Mr., on self-fertilised seeds of Epidendreæ, 147, 148
• Gradation of organs, 247
• Gray, Prof. Asa, on Gymnadenia tridentata, 68; Platanthera, 75; Goodyera repens, 105; Spiranthes gracilis and cernua; 111; Cypripedium, 229, 230, 235
• Gymnadenia, viscid matter, 251
• —— albida, 43, 68
• —— conopsea, transplanted, 32; secretion of nectar, 40, 43; structure of flower, 65; vessels, 238, 239; rostellum, 255; movements of pollinia, 271; disc, 272
• —— odoratissima, 68
• —— tridentata, 68; self-fertile, 291

 

• Habenaria bifolia, 78; secretion of nectar, 40, 43; viscid matter, 251