. Mosses with hand-lens and microscope : a non-technical hand-book of the more common mosses of the northeastern United States. B. & S. is rather rare and confined pretty closely tomountainous regions. It is distinguished from the last liv its much larger sizeand coarser appearance, smaller, and less con-spicuous paraphyllia and squarrose stem leaveswith rounded auricles and less strongly serratemargins: These leaves are cordate-ovate tocordate-triangular, suddenly contracted to therather long acumen. The spores mature fromlate autumn to early spring. H. Pyrenaicum (Spruce) Lindb. (//. Ocikesi
. Mosses with hand-lens and microscope : a non-technical hand-book of the more common mosses of the northeastern United States. B. & S. is rather rare and confined pretty closely tomountainous regions. It is distinguished from the last liv its much larger sizeand coarser appearance, smaller, and less con-spicuous paraphyllia and squarrose stem leaveswith rounded auricles and less strongly serratemargins: These leaves are cordate-ovate tocordate-triangular, suddenly contracted to therather long acumen. The spores mature fromlate autumn to early spring. H. Pyrenaicum (Spruce) Lindb. (//. OcikesiiSulliv.) is another subalpine species. The para-phyllia are exceedingly abundant and very large,bipinnately branched ; leaves not spreading orsquarrose, serrate at apex, with costa single andextending to the middle, rarely double; stemleaves widely ovate, concave rather short-acumi- —jnate and strongly plicate; branch leaves smallerand more gradually and longer-acuminate;spores mature in late autumn. H. triquetrum (L.) B. & S., the Shaggy Moss. ^ i, , , , This is common on shaded banks with a x i stem leat x 4. 268 MOSSES WITH HAND-LENS AND MICROSCOPE medium amount of moisture. It is yellowish green in color; usually itsbranching is rather irregularly pinnate as shown in Fig. 141, but sometimes indeep mountain woods it branches regularly, though not complanately, andgrows to a length of five or six inches. The stems are very stout and rigid butelastic. For this reason it is used in packing china and other brittle stem leaves are very large, 4-jmin in length, spreading at nearly right angles,widely deltoid-triangular to broadly ovate, rounded at basal angles and narrowedto the insertion, plicate, denticulate, papillose at back, with two slender parallelcostae extending about 4 the length of the leaf; basal cells thick-walled, pitted,orange: capsules striate when dry; spores mature from winter to early squarrosum (L.) B. & S. is a rather rare moss of cool
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