. Our ferns in their haunts [microform] : a guide to all the native species. Ferns; Fougères. 212. THE BLADDER FERNS. striking and little attention is paid to them. The variety dcntata has narrow bipinnate fronds with blunt pinna; and pinnules, the latter toothed. The variety atigustata has broad, nearly tri- pinnatc fronds witli acute, rather lan- ceolate, pinnules with sharply toothed lobes. Variety laciiiiata has the pinnules cut into irregular narrow teeth. The author once collected this species in the mountains of a tropi- cal islan('. where it grew in the crevices of a ledge that interru
. Our ferns in their haunts [microform] : a guide to all the native species. Ferns; Fougères. 212. THE BLADDER FERNS. striking and little attention is paid to them. The variety dcntata has narrow bipinnate fronds with blunt pinna; and pinnules, the latter toothed. The variety atigustata has broad, nearly tri- pinnatc fronds witli acute, rather lan- ceolate, pinnules with sharply toothed lobes. Variety laciiiiata has the pinnules cut into irregular narrow teeth. The author once collected this species in the mountains of a tropi- cal islan('. where it grew in the crevices of a ledge that interrupted the flow of a mountain torrent. When the rainy season swells the volume of water, all the fronds arc washed away, but as soon as it subsides, a new crop is produced. Since there are two rainy seasons in this place the plant seems regularly to produce two sets of fronds each year. BLADDER FERN. Cy/'tfl/'tfris hulii/cra. The Bulbiferous Bladder Ftrn, Wherever there is a line of shaded, dripping cliffs, especial- ly in limestone regions, one may look for the bulbiferous bladder fern {Cystopteris. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Clute, Willard N. (Willard Nelson), 1869-1950. Toronto : W. Briggs
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