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 . . !7~ 2 4 



Nucleolus ........ 25 



Second or homotypic mitosis in pollen mother-cells . . 27-30 



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 . . . . . . . 7-11 



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



Monotropa ........ 177 



Nemalion . . . . . ' . . . 119, 121 



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



CEdogonium . . . . . . . 89-91 



Onoclea ....... 130-133, 136, 138-141 



Peperomia ........ 173 



Peronospora ........ IQI 



Pilularia ........ H 2 



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



Physcia ......... I2 8 



Podophyllum : 



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



Nature of nuclear membrane . . . . J 3, 24 



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



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



Pyronema ....... * ui-n6 



Pythium ........ IQI 



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



Saprolegnia ........ IO 2, 107 



Sphseroplea ..... . . . 79 _g 4 



Sphaerotheca ........ io8-ni 



Spirogyra . . . . . . . . 2 6, 67-70, 168 



Sporodinia .... 71 



Synapsis ........ I3 



Tradescantia virginica : 



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



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



Tsu 8 a ........ 163, 165, 166, '167 



Tulipa ........ I78 



thnx ...... 61,62,65 



Vauchena ...... CM QC 



Vicia faba . . . ... 



Volvox ..... ... 88 



5 amia .... H9-I55, i57-i6i, 163, 166 



Zea mav8 ........ 25, 178 



