Encyclopedia Americana, Volume 22

19th century acid algae American archegonia became called carpels cells century chemical coast color disease electrical England English feet film flowers France French fruit fungi gametes gametophyte Gdańsk German Greek growth History important inches Indian industry Island known Kraków land later layer leaf light liverworts living London ment meristems methods miles modern mold muskellunge natural North occur organisms original ovules Paris phloem photographic photosynthesis physical physiology piano pine pipe pipeline pistil plants plasma plastic Plato poet poetry Poland polarized Pole Polish Polish literature political pollen Pompey produced region resins River Roman Rome roots seed soil South species sporangia spores sporophyte stamens stem structure surface theory tion tissues tube ture United University usually varieties various vols wall World War II xylem York