. The Bryologist. Mosses; Liverworts; Lichens; Botany; Bryology. —35- long decurrent, the wing sometimes longer than the free portion, and usually sharply dentate. Perianth ovate, the lips subentire, and usually plane. On moist rocks, and base of trees in deep woods. Common on the Pacific Coast, but rare in the East. Has been collected in Connecticut, Ohio, Texas, New Mexico, Montana and Idaho. Our illustration does not show the decurrent wings of the Fig. 5. Porella platyphylla (L.) Lindb. B, Stem, upper side, showing perianth and emerging cap- sule. C, Stem, under side, showing
. The Bryologist. Mosses; Liverworts; Lichens; Botany; Bryology. —35- long decurrent, the wing sometimes longer than the free portion, and usually sharply dentate. Perianth ovate, the lips subentire, and usually plane. On moist rocks, and base of trees in deep woods. Common on the Pacific Coast, but rare in the East. Has been collected in Connecticut, Ohio, Texas, New Mexico, Montana and Idaho. Our illustration does not show the decurrent wings of the Fig. 5. Porella platyphylla (L.) Lindb. B, Stem, upper side, showing perianth and emerging cap- sule. C, Stem, under side, showing ventral lobes and under- leaves. (The leaves are shown too far apart. They should be more closely imbricated.) D, Section of perianth length- wise. E, Capsule: F, Leaf, showing lower lobe. G, Part of plant, showing male branches. 5. Porella PLATyphylla(L.) Lindb. Fig. 5. {Jiingermannia platyphylla'L,. phylloidea Schwein. Madotheca platy- phylla Dumort. Porella thuja Lindb.) Dull or with a slight lustre, yellowish to dark green, rigid; 1-3 pinnate, 3-8cm. long, in dense mats ; dorsal lobes of leaves closely imbricate, usually appressed, obliquely-ovate, obtuse, upper margin subentire; ventral lobes ovate to oblong, obtuse, length about | the width of the dorsal, margins recurved, scarcely decur- rent; underleaves close together, nearly orb- icular to oblong, margins reflexed, long de- current: perianth oval, narrowed above, the mouth dentate or ciliate. At base of trees and sometimes on logs and rocks. Very common ea^t of the Mississippi, and has been collected in Idaho, Wyoming and British Columbia. The American plants are mostly of the form known as Porella thuja, though the European form, P, platyphylla, is also 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 Grout, A. J. (Abel Joel), b
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbotany, booksubjectli
