. 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 171. Figure 98. Lcjcunea the size of the lobule and rather smaller than in the next. The spores mature in midsummer; perianths may be found in autumn and winter. The perianth is about half exserted, ob- long to oval-oblong from a narrower base, rounded at the apex and con- tracted into a short slender beak resembling that shown in Jnngerman- nia lanccolata, sharply five keeled in the upper part. The bifid underleaves which
. 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 171. Figure 98. Lcjcunea the size of the lobule and rather smaller than in the next. The spores mature in midsummer; perianths may be found in autumn and winter. The perianth is about half exserted, ob- long to oval-oblong from a narrower base, rounded at the apex and con- tracted into a short slender beak resembling that shown in Jnngerman- nia lanccolata, sharply five keeled in the upper part. The bifid underleaves which distinguish this species micro- scopically seem entire with a lens. L. CLYPEATA (Schwein.) SuUiv. is a clypeata (After Sullivant). Plant; portion of stem rather larger plant found on rocks and Teen frZa'btve;te'?am" trees, from Connecticut southwards, from below; portion of a q^^^^ lobule forms an almost Straight stem with a pair of leaves -in and a male branch; perianth keel and the lower (postical) margm reav\srcroils«?ionTfTer' °f the leaf is much less incurved. The lanth; elaters and spores. underleaves are much larger than the lobules. The perianth has a rather shorter and broader beak. RADULA. R. COMPLANATA (L.) Dum. is fully as common as the Com- mon Porella, growing on stones, walls, and roots of trees in dark green mats. The leaves are complicate-bilobed as in all the pre- ceding members of the family, but there are no underleaves and the root hairs are all attached to the lobules instead of to the stem or underleaves as is usually the case. The lobule is attached by the longer margin as in Lejeunea, but the plants are much larger. The spores mature in early spring, but perianths can be found on the plants at almost any season and they are so char- acteristic as to render recognition easy. They are flattened at the mouth (not well shown in the figures) as if someone had taken them between the thumb and finger and squeezed the upper portion flat. The mature caps
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectmosses, bookyear1905
