. Mosses with hand-lens and microscope : a non-technical hand-book of the more common mosses of the northeastern United States. Amhlystcgiiim riparium, leaves and leaf cell 340 MOSSES WITH HAND-LENS AND MICROSCOPE conspicuously shorter and broader than in ripuriuin. The stem leaves are nar-rowly lanceolate, long-acuminate, reaching i in length in large plants;branch leaves oblong-lanceolate, less slenderly acuminate; costa extending abo\ethe middle, in the perichaetial leaves excurrent. N. H., \t., N. J., Ontario. Thespecimens from Georgia and Florida that have been referred to this species,ar
. Mosses with hand-lens and microscope : a non-technical hand-book of the more common mosses of the northeastern United States. Amhlystcgiiim riparium, leaves and leaf cell 340 MOSSES WITH HAND-LENS AND MICROSCOPE conspicuously shorter and broader than in ripuriuin. The stem leaves are nar-rowly lanceolate, long-acuminate, reaching i in length in large plants;branch leaves oblong-lanceolate, less slenderly acuminate; costa extending abo\ethe middle, in the perichaetial leaves excurrent. N. H., \t., N. J., Ontario. Thespecimens from Georgia and Florida that have been referred to this species,are, I believe, a different thing, for it is scarcely probable that a subalpinespecies of the New England mountains should be found in the lowlands ofthe southern Figure 177. Amblystegium vaciilans. (From Sulliv. Icones ) HYPNACEAE 341 SCIAROMIUM Mitt. Distinguished from Hygroamblyslcgium chiefly by the strongly bordered leavesand entire lack of paraphyllia. In habitat and gross appearance it is the same,also in the cellular structure of the leaves. S. Lescurii (Sulliv.) Broth, is our only species. It / is a blackish green moss growing on stones in brooks ■. and is common especially in elevated regions in the y; eastern United States. It often grows associated withAmblystegium orthocladoii and its leaves are about thesame size and shape, so that it can be readily distin- V/guished by a microscopical examination only. The ^ ^border to the leaves, while plain, is not conspicuous andmay be overlooked easily in some cases. Sullivantsfigure will supply all needed details of structure. Sporesmature in spring. , , f. SUBFAMILY 6. HYPNE^ f Central strand lacking or thin and few-celled ; leavesoften strongly falcate-secund, without costa or with 1 I c
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