. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. POLYPODIACEAE. Vol. I. 17. Dryopteris Robertiana (Hoffm.) C. Chr. Scented Oak-fern. Fig. 53. Polypodium Robertianum Hoffm. Deutschl. Fl. 2: [add. 4]. 1795- Phegopteris Robertiana A. Br.; Aschers. Fl. Brand. 2 : 198. 1859. Polypodium calcareum Sm. Fl. Brit. 1117. 1804. Phegopteris calcarea Fee, Gen. Fil. 243. 1850-52. Rootstock slender, creeping, branched. Stipe
. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. POLYPODIACEAE. Vol. I. 17. Dryopteris Robertiana (Hoffm.) C. Chr. Scented Oak-fern. Fig. 53. Polypodium Robertianum Hoffm. Deutschl. Fl. 2: [add. 4]. 1795- Phegopteris Robertiana A. Br.; Aschers. Fl. Brand. 2 : 198. 1859. Polypodium calcareum Sm. Fl. Brit. 1117. 1804. Phegopteris calcarea Fee, Gen. Fil. 243. 1850-52. Rootstock slender, creeping, branched. Stipes slender, straw-colored, 6'-i3' long; blades 6'-8' long, s'-7' broad, copiously glandular, suberect, tri- angular-ovate; basal pinnae largest, 2>'-4¥ long, unequally deltoid-ovate, long-stalked, 2-pinnatifid; second pair of pinnae distant, short-stalked or ses- sile, pinnate or 2-pinnatifid, deltoid-oblong; suc- ceeding pinnae sessile, narrower, mostly pinnatifid; segments close, oblong to elongate-oblong, the mar- gins subentire to crenate-dentate, reflexed; sori near the margin, non-indusiate, numerous. On shaded limestone, Labrador to Alaska, New Brunswick and Iowa. Rare and local Also in Europe, 8. ANCHISTEA Presl, Epim. Bot. 71. 1851. Coarse swamp ferns with wide-creeping prostrate or underground rootstocks, the leaves scattered and rigidly erect, the blades long-stalked and deeply bipinnatifid, the fertile ones similar in outline to the sterile. Veins united in a single series of elongate areoles next to the secondary rachis and midveins of the segments, the veinlets arising from these simple or once-forked, extending to the margin, almost invariably free. Sori superficial, borne on the inner side of the transverse vein forming the outer side of the areole, elongate-linear to oval, covered by convex indusia attached at the outer margin. [Name from the Greek, in allusion to the alliance with Wuodwardia.] A monotypic genus of eastern North America. i. Anchistea virgini
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
