. Our native ferns and their allies [microform] : with synoptical descriptions of the American Pteridophyta north of Mexico . Ferns; Ferns; Pteridophyta; Fougères; ; . 130 OUR NATIVE FENNS AND THEIR ALLIES. ir I : \ I'j'jO %9V with the sterile segment composed of two or tlirec pinnatuly incised divisions ioriw the 7>ar. coiiiposiiuni Lasch. New Kiitj- hind, New York and northward, the variety in Wyoming Ter- ritory and California. ** Vernation partly inclined in one or both portions. t liuds smooth ; sterile sej^nients sessile or short-stalked; plant small, fruitin!^ in early summer. "
. Our native ferns and their allies [microform] : with synoptical descriptions of the American Pteridophyta north of Mexico . Ferns; Ferns; Pteridophyta; Fougères; ; . 130 OUR NATIVE FENNS AND THEIR ALLIES. ir I : \ I'j'jO %9V with the sterile segment composed of two or tlirec pinnatuly incised divisions ioriw the 7>ar. coiiiposiiuni Lasch. New Kiitj- hind, New York and northward, the variety in Wyoming Ter- ritory and California. ** Vernation partly inclined in one or both portions. t liuds smooth ; sterile sej^nients sessile or short-stalked; plant small, fruitin!^ in early summer. " 2. B. lunaria Swz. (MooNVVOR'i.) Plant 5'—8' hi^h, fleshy ; sterile segment nearly sessile, borne near the middle of the stalk, oblong, simply pinnate with 5 — 15 lunate or fan-shaped lobes which are crenate, incised, or entire, close and overlapping, or distant; fertile segment bi—tripiniiate, pan- icled, about the height of the sterile. Apex only of sterile segment bent over and outside of the nearly straight fertile segment in vernation ; divisions of sterile frond arranged nearly perpen- dicularly. (Fig. 32.) Connecticut, New York, Lake Superior, Colorado, and British Columbia. 3. B. boreale Milde. Plant 2]^—7' high, smooth, fleshy; sterile segment placed above the middle, sessile, cordate, ovate or deltoid, pin- FiG. 32.—Verna- nately parted, acute ; lowest segment spreading \\o\\o{ li. lunaria , t ^ i Swz. (After Dav- irom a narrower base, ovate or cordate-ovate, enport.) acute, all entire, or here and there flabellately incised with acute lobes, or pin nately parted ; secondary seg- ments from a narrowed base, ovate, acute, serrate, the upper spreading, quickly decreasing, finally elliptical, acute; fertile segment bi—tripinnate, panicled. Apex of sterile segment bent over inside of the nearly erect fertile one in vernation ; divisions of the sterile segment arranged on an angle. Un;i laska. —.4, B. matricariaefolium A. Br. Plan'.-!'—12'high, usually
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Keywords: ., bookcentury1800, bookdecade1880, bookpu, booksubject, bookyear1888
