. Mosses with hand-lens and microscope : a non-technical hand-book of the more common mosses of the northeastern United States. (Fr FicLRF-: 119. Mniiim hornii I. Plant natural size. 6. Apex of leaf, i6. Ipper leaf. Bry. Eur.).Leaf, side \ie\ ort/wrAj^fLc/tiuif PLATE LI, Mnnim serratum and M. iirthorrhynehum i From Bry. Eur. BRYACEAE 235 In both marginatum and ort/iorrhyiichtim the costa in the lower leaves does notreach the apex and in the latter the lower leaves are often almost entire. Bothspecies have the leaves a good deal shriveled when dry, especially on the sterileshoots. C. Leaves
. Mosses with hand-lens and microscope : a non-technical hand-book of the more common mosses of the northeastern United States. (Fr FicLRF-: 119. Mniiim hornii I. Plant natural size. 6. Apex of leaf, i6. Ipper leaf. Bry. Eur.).Leaf, side \ie\ ort/wrAj^fLc/tiuif PLATE LI, Mnnim serratum and M. iirthorrhynehum i From Bry. Eur. BRYACEAE 235 In both marginatum and ort/iorrhyiichtim the costa in the lower leaves does notreach the apex and in the latter the lower leaves are often almost entire. Bothspecies have the leaves a good deal shriveled when dry, especially on the sterileshoots. C. Leaves bordered, entire. M. punctatum L., the Early Mnium, grows on moist stones in the bed ofbrooks. It matures its capsules in April, long before any other species. It isat once recognized by its obovate margined entire leaves and beaked leaves are usually minutely apiculate and the costa percurrent, although insome of the leaves it may stop just a little short of the apex. The margin iscomposed of 2-4 rows of cells in several layers. Dioicous. Common. M. punctatum datum Schimp., the Large-leaved Mnium, is said to be merelya variety of the Early Mnium growing in the mud in swampy places. It isoften much larger than the figure, s
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