. 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. Polypodium Lonchitis L. Sp. PI. 1088. 1753. Aspidium Lonchitis Sw. Schrad. Journ. Bot. 18002: 30. 1801. Polystichum Lonchitis Roth, Rom. Arch. Bot. 21: 106. 1799. Dryopteris Lonchitis Kuntze, Rev. Gen. PI. 813. 1891. Rootstock short, stout, densely chaffy. Stipes l'-S' long, bearing large ferruginous scales with smaller ones intermixed; blades rigid, coriaceous
. 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. Polypodium Lonchitis L. Sp. PI. 1088. 1753. Aspidium Lonchitis Sw. Schrad. Journ. Bot. 18002: 30. 1801. Polystichum Lonchitis Roth, Rom. Arch. Bot. 21: 106. 1799. Dryopteris Lonchitis Kuntze, Rev. Gen. PI. 813. 1891. Rootstock short, stout, densely chaffy. Stipes l'-S' long, bearing large ferruginous scales with smaller ones intermixed; blades rigid, coriaceous, evergreen, 6'-2° long, linear-lanceolate, once pinnate; pinnae numerous, close, broadly lanceolate-falcate, l'-li' long, acute, strongly auricled on the upper side at the base, obliquely truncate below, notably spinulose-dentate, the lowest commonly triangular and shorter; sori large, borne usually in two rows, nearly equidistant between the margin and midrib, subconfluent with age; indusium entire. On rocks, Labrador to Alaska, south to Nova Scotia, Ontario, Wisconsin, Montana and Washington, and in the mountains to Utah, Colorado and California. Also in Greenland, Europe and Asia. Called also' Rough alpine fern. Aug. 2. Polystichum acrostichoides (Michx.) Schott. Christmas-fern. Fig. 34. Nephrodium acrostichoides Michx. Fl. Bor. Am. 2: 267. 1803. Aspidium acrostichoides Sw. Syn. Fil. 44. 1806. Polystichum acrostichoides Schott, Gen. Fil. 1834. Dryopteris acrostichoides Kuntze, Rev. Gen. PI. 812. 1891. Rootstock stout, creeping. Stipes $'-7' long, densely chaffy; blades lanceolate, i°-2° long, 3'-$' wide, rigid, evergreen, subcoriaceous, once pinnate; pinnae i's' long, narrowly oblong-lanceolate, somewhat falcate, acutish at the apex, half halberd-shaped at the base, with appressed, bristly teeth, the lower pinnae scarcely smaller, sometimes deflexed; fertile fronds contracted at the apex, the reduced pinnae soriferous, their under surface nearly covered with large contig
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
