. Our native ferns and their allies [microform] : with synoptical descriptions of the American Pteridophyta north of Mexico . Ferns; Ferns; Pteridophyta; Fougères; ; . down in vernation ; sterile segment clasping the fertile with its apex overlapping the wlu^lc. (Fig. 33.) {B. neglec- liiiit Wood.) New England, New York, Ohio, and Mt. I*eddo, Washington Territory {Su/csdor/). tt liiii/s pilose; sterile set^ments usually long- stalked; plant larger, fruiting in autumn. 5. B. ternatum Swz. Frond fleshy, the ^^f7^ common stalk very short ; sterile segment broadly pentagonal or triangular, ternat
. Our native ferns and their allies [microform] : with synoptical descriptions of the American Pteridophyta north of Mexico . Ferns; Ferns; Pteridophyta; Fougères; ; . down in vernation ; sterile segment clasping the fertile with its apex overlapping the wlu^lc. (Fig. 33.) {B. neglec- liiiit Wood.) New England, New York, Ohio, and Mt. I*eddo, Washington Territory {Su/csdor/). tt liiii/s pilose; sterile set^ments usually long- stalked; plant larger, fruiting in autumn. 5. B. ternatum Swz. Frond fleshy, the ^^f7^ common stalk very short ; sterile segment broadly pentagonal or triangular, ternate; the three primary divisions also stalked, as broad as long, pinnately decompound ; ultimate divi- sions varying fi"'>m round-reniform to triangu- lar-lanceolate, entire or variously toothed and incised ; fertile segment long-stalked, bi—quad- ripinnate. Apex of both segments bent down, with a slight curve inward in vernation. (Fig. 34.) (/)'. australe R. />. lunarioides Swz., /)'. funiarioides Willd., />'. deeoinposituin Mart, and CJale., Osinunda ternata Humb., Hotrypus lunarioides Michx.) Very variable ; larger forms (6'—17' high), with more compound fruc- tionof A'. >nat>i- tilication and with divisions of sterile segment ob- (After Davenport.) long or lanceolate and obtuse or oblique at base, * are the var. obliquutn Milde; forms with divi- sions of the sterile segment laciniately cut into .- . narrow teeth are inir, dissectuni Milde. New England and Canada, westward to California, Washington Territory, British Columbia, and southward to Florida. *** Vernation wholly inclined, in the fertile segment recurved. "^- 6. B. lanceolatum Angs. Plant 3'—9' "l^f^ high, somewhat fleshy ; sterile segment closely •sessile at the top of a long common stalk, in the smallest forms thrce-lobed, in larger ones broadly triangular, twice pinnatifid, the divi- sions lanceolate, entire or toothed, all set at an (After Davenport.) oblique angle; fe
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Keywords: ., bookcentury1800, bookdecade1880, bookpu, booksubject, bookyear1888
