. Essentials of botany. Botany; Botany. 272 ESSENTIALS OF BOTANY. of aquatic plants, and water is absolutely necessary to ac- complish fertilization. Some liverworts are mi- nute floating plants (Fig. 188) much simpler than Mar- cAawim, others are terrestrial, I'^^M^ 1 of more complex organization than Mar- ''^ chantia. Many of the higher liverworts (Fig. 195) have leafy stems and in appear- ance slightly resemble the mosses. MNIUM, A COMMON MOSS^ 351. Occurrence.—Mnium cuspidatum is a very widely distributed moss occurring abundantly on shaded ground and espe- cially about the bases of trees
. Essentials of botany. Botany; Botany. 272 ESSENTIALS OF BOTANY. of aquatic plants, and water is absolutely necessary to ac- complish fertilization. Some liverworts are mi- nute floating plants (Fig. 188) much simpler than Mar- cAawim, others are terrestrial, I'^^M^ 1 of more complex organization than Mar- ''^ chantia. Many of the higher liverworts (Fig. 195) have leafy stems and in appear- ance slightly resemble the mosses. MNIUM, A COMMON MOSS^ 351. Occurrence.—Mnium cuspidatum is a very widely distributed moss occurring abundantly on shaded ground and espe- cially about the bases of trees in open woods. It may be known by the yellow or light brown ellipsoidal capsule, which is attached, at right angles or slightly droop- ing, to a slender stalk about an inch long. The leaves of the vegetative branches are round-obovate and pointed by a minute pro- longation of the midrib. They have minute sharp teeth and, in fresh moist material, are pale green. The capsules are produced in the spring, and material showing various stages of development should be 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 Bergen, Joseph Y. (Joseph Young), 1851-1917. Boston, Ginn
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