. Mosses with a hand-lens; a non-technical handbook of the more common and more easily recognized mosses of the north-eastern United States. Mosses. MOSSES WITH A HAND-LENS lOQ P. AsAGRAYANA Mont. is another common species somewhat resembling the preceding, but larger and usually growing on rocks, occasionally on trees. The lobule is much more elongated and there is a line of discolored cells in the middle of the leaf that reminds one of a costa. The lobule in FruUania is usually modified into a saclike body of various shapes which serves for the temporary retention of water. This saclike form
. Mosses with a hand-lens; a non-technical handbook of the more common and more easily recognized mosses of the north-eastern United States. Mosses. MOSSES WITH A HAND-LENS lOQ P. AsAGRAYANA Mont. is another common species somewhat resembling the preceding, but larger and usually growing on rocks, occasionally on trees. The lobule is much more elongated and there is a line of discolored cells in the middle of the leaf that reminds one of a costa. The lobule in FruUania is usually modified into a saclike body of various shapes which serves for the temporary retention of water. This saclike form of the lobule is scarcely apparent with a lens, but under the compound microscope becomes a beautiful and interesting object. There are several other species found within our range, but the compound microscope is needed for their determination. JuBULA HuTCHinsiaE is a plant likely to be confused with FruUania. It grows on wet rocks, especially in mountains. It is easily differentiated by its strongly lacerate-dentate leaves. PORELLA. The Porellas dififer from the Frullanias in their larger size, lighter color, larger and entire underleaves, and lobules not sac- like, but Ungulate to oblong. The lobules are plainly attached by the narrow end to the lobe and extend forward parallel with the Fig. 95- Fig 96. Figure 95. Porella platyphylla. From Bryologist, 5: 35, 1902. B. Upper side of stem showing perianth and emerging capsule. Also showing clearly incubous arrangement of leaves. C, Underside of stem, the leaves shown too far apart. D. Longitudinal section of peri- anth. E. Capsule. F. Leaf. G. Part of plant showing male branches. Figure 96. Porella pinnata. From the Bryologist, 5: 34, 1902. A. Underside of stem showing narrow underleaves and narrow lobules at- tached by their shorter edge to lobe. B. Single leaf showing lobe and Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectmosses, bookyear1905
