Botanical Gazette, Volume 44

Abietineae aecidium agar air chambers angiosperms antipodal apical apogamy appear archegonia biennis body cell BOTANICAL GAZETTE bundles cañon cent central cylinder characters chromosomes condition cortex cytoplasm described division elongated embryo sac endosperm fertilization filifera flora flowers formation fusion gametophyte genera genus germination growth hybrid Inoculation internodes Lamarckiana large number lata later layer leaf traces longa longis male nucleus megasporangium megaspore Microcycas micropylar microsporangia mitosis mother cell mutation mycelium NaCl node nuclei number of chromosomes observed occur origin ovule paper petiole Pinus plants PLATE pollen tube postpaid Potamogeton present produced proembryos Professor prothallial cell region roots seeds shoots shown in fig shows solutions species sperms spindle spirem sporangia sporangium spores sporocarp sporogenous tissue sporophyte stage stalk stele stem strands structure suspensor synapsis tapetal tapetum telophase tetrad tion trees tuberous Ueber University of Chicago uredospores usually vegetative wall xylem