viii INDEX. 



PAGE. 



Karyokinesis (see Mitosis). 



Laboulbeniacese ....... 126 



Larix ... . . 158, 170-171 



Lilium : 



Mitosis in pollen mother-cells .... 11-30 



Development of mitotic spindle in pollen mother-cells . . 15-16 



Behavior of chromosomes in pollen mother-cells . . 1 7~ 2 4 



Nucleolus ........ 25 



Second or homotypic mitosis in pollen mother-cells . . 2 7~3O 



Embryo-sac and Fecundation ... . 169-177 



Fate of second male nucleus in embryo-sac . . . 177-178 



Marsilia ... . . 133, 134, 135 



Mitosis in Dictyota ...... 2-7 



Erysiphe ....... J-n 



pollen mother-cells ..... 11-29 



Monotropa ........ 177 



Nemalion ...... .119, 121 



Nucleolus, discussion of ..... 25, 26 



CEdogonium ....... 89-91 



Onoclea ...... IS "^. I 3 6 138-141 



Peperomia ........ 173 



Peronospora ........ 101 



Picea ........ 163 



Pilularia ........ 142 



Pinus ........ 156, 163-168 



Physcia ......... 128 



Podophyllum : 



Resting nucleus of pollen mother-cell . . . 11,12 



Nature of nuclear membrane ..... 13, 24 



Behavior of chromosomes in pollen mother-cell . . 18, 22 



Pteridophyta ........ 129-142 



Pyronema ........ m-ii6 



Pythium ........ 101 



Rhopalodia gibba ....... 73, 75, 76 



Saprolegnia ........ 102, 107 



Sphseroplea ........ 79-84 



Sphserotheca ........ ic8-ui 



Spirogyra . . . . . . . .26, 67-70, 168 



Sporodinia . . . . . . . . 71 



Synapsis ........ 13 



Tradescantia virginica : 



Behavior of chromosomes in pollen mother-cell . . .18, 19, 22 



Second or homotypic mitosis in pollen mother-cell . . 27, 29 



Tsuga ........ 163, 165, 166, 167 



Tulipa ........ 178 



Ulothrix ........ 61, 62, 65 



Vaucheria ........ 94, 95 



Vicia faba ........ 25 



Volvox ........ 88 



Zamia ...... 149-155, 157-161, 163, 166 



Zea mays ........ 25, 178 



