. College botany; structure, physiology and economics of plants. Botany. 293 They are divided into three groups: (1) Sphagnales, (2) Andrew- ales and (3) Bryales. The Sphagnales were especially abundant during the car- boniferous age and are largely responsible for the great beds of coal. They are sometimes known as the peat or bog mosses and are abundant in some localities, especially the swampy regions. c' #dl \ r g-yn â ^-., /" mm ~' ~ o '^"wM â ^ o" ' e 9' r Fig. 141.âDiagrammatic representation of the life cycle of Marchantia polymorpha; (a) mature male plant; (
. College botany; structure, physiology and economics of plants. Botany. 293 They are divided into three groups: (1) Sphagnales, (2) Andrew- ales and (3) Bryales. The Sphagnales were especially abundant during the car- boniferous age and are largely responsible for the great beds of coal. They are sometimes known as the peat or bog mosses and are abundant in some localities, especially the swampy regions. c' #dl \ r g-yn â ^-., /" mm ~' ~ o '^"wM â ^ o" ' e 9' r Fig. 141.âDiagrammatic representation of the life cycle of Marchantia polymorpha; (a) mature male plant; (a") maturefemale plant; (&') antheridium; (6") archegonium; (cO sperm; (c") ovum; {d) oospore; (e) young sporophyte; (/') and ^/") spores; fff') and ig") young plants. of the higher altitudesu They are the characteristic types found in cranberry bog's of the eastern and northern parts of the United States. They were used extensively during the recent war for dressing wounds. The Andreceales is a small order which we will not study. The order Bryales (Fig. 142) includes the most common and widely distributed types of tlie present time. The gametophyte body is a branching filament (protonema) which may be consid-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Cook, Melville Thurston, 1869-1952. Philadelphia and London, J. B. Lippincott Company
Size: 1607px × 1555px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjectbotany, bookyear1920
