. Our native ferns and their allies [microform] : with synoptical descriptions of the American pteridophyta north of Mexico. Ferns; Fougères. 33.âVeraation of B. simplex E. Hitchcock. Plant 2'â (Afte^DavelfJ^.) "''' B. 6. B. lanoeolatum (S. G. Gmel.) Angs. Plant 3'â12' high, â¢omewhat fleshy. Leaf closely sessile near the summit of the stem, I'â2' wide, 3-lobed or broadly trian- gular and 2-pinnatifid, the ultimate segments lanceolate, acute, oblique, entire or dentate ; midvein continuous, with forking veinlets ; sporophyll slightly overtopping the leaf, short-stalked, 2â3-pinnate, recu
. Our native ferns and their allies [microform] : with synoptical descriptions of the American pteridophyta north of Mexico. Ferns; Fougères. 33.âVeraation of B. simplex E. Hitchcock. Plant 2'â (Afte^DavelfJ^.) "''' B. 6. B. lanoeolatum (S. G. Gmel.) Angs. Plant 3'â12' high, â¢omewhat fleshy. Leaf closely sessile near the summit of the stem, I'â2' wide, 3-lobed or broadly trian- gular and 2-pinnatifid, the ultimate segments lanceolate, acute, oblique, entire or dentate ; midvein continuous, with forking veinlets ; sporophyll slightly overtopping the leaf, short-stalked, 2â3-pinnate, recurved its whole length with the shorter leaf reclined upon it in vernation. Nova Scotia to Alaska, south to New Jersey, Ohio, Colorado, and Washington. Also in Europe and Asia. June-July. ⦠⦠Ltaf rising from near the rootstock. t Vernation wholly straight; bud smooth ; leaf entire or 2â6-lobed. 7. 5' high, slender, very variable. Leaf ovate, obovate, or oblong, entire, lobed, or pinnately parted, borne near the base of the stem; sporophyll a simple or slightly compound spike, sometimes reduced to [only a few spo- ranges; spores large for the genus, minutely tuberculate; apex of leaf and sporophyll âVernation of erect in vernation. Nova Scotia to Maryland, Hitchcock. >. .. -iir j /- i-r ⢠/â ^^ (After Davenport.) west to Wyommg and California (?). tt Vernation inclined; leaf ample, ternately compound. X spores maturing in early spring ; leaf sessile or nearly so, 8. B.'blternatum (Lam.) Underw.âPlant 3'â6' high, bear- ing a nearly sessile, broadly triangular ternately compound leaf, 3'â4' wide, 2' high; middle division slightly larger than the lateral ones and like them nearly bipinnate; ultimate divisions rather lunate, usually not exceeding 2"â3" in width, the outer margin crenulate, the lateral margins decurrent into the short branches of the rachis; sporophyll on a rather stout stalk, bipinnate, with a rather broad rachi
Size: 1087px × 2299px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., booka, bookcentury1900, bookdecade1900, bookpublishernewyorkhholt
