584 



MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



Cyathus vernicosus, 68 



Cycadeomyelon, 77 



Cydonia, 246, 249, 250; japonica, 249; 



vulgaris, 246, 247, 249 

 Cylindropuntia, 491 

 Cymopterus acaulis, 190; Fendleri, 190; 



montanus, 191; purpureus, 190; tere- 



binthus, 191 

 Cynoniarathrum Eastwoodii, 190 

 Cyperus brunneus, 569; cuspidatus, 569; 



fuligineus, 569; elegans, 569 

 Cypripedium, 271, 305 

 Cypselea humifusa, 571 

 Cystopteris fragilis, 170 

 Cytisus Laburnum, 438 

 Cytokinesis of the pollen-mother-cells of 



certain dicotyledons, 253 



Dactyloctenium aegy-ptium, 568 



Daedalea Aesculi, 510 



Dahlia, 281, 306 



Daldinia concentrica, 508 



Daphne, 282, 306, 425 



Darlingtonia, 163 



Dasylirion, 491 



Dasyscypha earoleuca, 506 



Dasyspora, 173-175, 185, 188, 192; 

 Anemones- virginianae, 185 



Delphinium, 276 



Dendropemon caribaeus, 570 



Derbesia repens, 107; turbinata, 106-108, 

 121; vaucheriaeformis, 107, 108 



Deringa canadensis, 192 



Desmanthodium fruticosum, 206; ovatuni, 

 206 



Desmarcstia Dudresnayi, 114 



Detonia Planchonis, 503 



Development of Lepiota cristata and 

 Lepiota seminuda, The, 209 



Deweya arguta, 192 



Dicaeoma, 174, 175, 188, 194, 195; 

 anachoreticum, 181; arabicola, 199; 

 areolatum, 186; asperius, 193; clay- 

 toniatum, 184, Clematidis, 185; con- 

 simile, 187; crassipes, 196; Cymopteri, 

 190; Douglasii, 198; fragile, 199; 

 Holwayi, 181; intermixtum, 204; in- 

 vestitum, 205; Ipomoeae, 196; Jonesii 

 190; melanconioides, 194; microicum 

 192; Nesaeae, 189; opulentum, 195 

 plumbarium, 199; Podophylli, 187 

 rufesccns, 202; subcircinatum, 206 

 Swertiac, 195; X'iolae, 188; tenue, 205 



Dichelostemma congestum, 183, 184 



Dichondra carolinensis, 509 



Dicotyledons, Cytokinesis of the pollen- 

 mother-cells of certain, 253 



Dictyopteris polypodioides, 108 



Dictyota, 108, 122, 123, 255, 259, 260; 

 dichotoma, 105, 106, 108-112, 115, 

 116, 118; linearis, 118 



Didymium, 261 



Dimerosjiorium mclioloides, 507 



Diorchidium Tracyi, 201 



Dipterostemon capitatus, 182, 183; pauci- 



florus, 183 

 Dirca, 163 

 Directing factors in the teaching of 



botany, 33 

 Distichlis spicata, 85, 86 

 Diurospermum, 50 

 Dodecatheon, 195; cruciatum, 195; Hen- 



dersonii, 195; latifolium, 195; "Meadia," 



Dodonaea Ehrenbergii, 575 



Drimys, 27-30; axillaris, 29-31; colorata, 



29-31; Muelleri, 27; vascularis, 27; 



Winter!, 29-31 

 Drimys specialized or primitive types? 



Are Tetracentron, Trochodendron and, 



27 

 Drosera, 134, 137, 142, 282, 306; binata, 

 13O1 138; filiformis, 130, 132-134, 136- 

 138, 146; intermedia, 130, 132, 134, 

 ^37f 138, 141, 146; longifolia, 125, 129- 



133. 138, 141, 147; obovata, 125, 126, 

 128, 141; rotundifolia, 125, 130-132, 



134. 137, 138, 141. 146, 172 

 Drosera, Somatic and reduction divisions 



in certain species of, 125 

 Drudeophytum Hartwegii, 192 

 Dryas octopetala, 170 

 Dryopteris simulata, 81 



Echinis, 433 



Echinocactus, 491 



Echinocereus, 491 



Echinopanax horrida, 482 



Ecology and the new soil fertility, Plant, 



319 



Ectocarpus solitarius, 108 



Elachistea, 108; stellulata, 106, 108, 

 110-112, 115, 118 



Elaeodendron xylocarpum, 574 



Embryo-sac and pollen grain as colloidal 

 systems. The, 561 



Empetrum nigrum, 170 



Endemism as a criterion of antiquity 

 among plants, 161 



Enskide, 54 



Ephedra, 254, 269, 493 



Epidendrum, 567; papilionaceum, 570 



Epigaea repens, 139 



Epilobium, 272, 305 



Epipactis, 254, 305 



Equisctum, 267, 304, 308, 461, 463, 464; 

 arvense, 464; arvense boreale, 461; 

 Funstoni, 471; Funstoni caespitosum, 

 471; Funstoni polystachyum, 471; hye- 

 malc, 463, 468; hyemale affine, 468; 

 hycmale californicum, 465, 467; hye- 

 male Docllii, 465; hyemale Drummondi, 

 467; hyemale herbaceum, 471; hyemale 

 intermedium, 468, 470; hyemale preal- 

 tum, 467; hycn\ale pumilum, 468; 

 hyemale robustum, 467; hyemale Suks- 

 dorfi, 468; hyemale tcxanum, 469; 

 laevigatum, 461, 469; lacvigatum poly- 



