. Our ferns in their haunts; a guide to all the native species. Ferns. THE CHRISTMAS AND HOLLY FERNS. Braun s Holly Fern. The last of this trio oi Polysticliunis —P. Braunii—is, like the holly fern, an inhabitant of the more .northern parts of our continent. It is a sin- gularly decorative and beautiful species and belongs to a type that is found the world over. The typ- ical species is called Polystichiun aciileatiim and our plant was long thought to be a variety of it. It is now considered by most botanists to be a distinct species. The rootstock is short and thick and the fronds usually rea
. Our ferns in their haunts; a guide to all the native species. Ferns. THE CHRISTMAS AND HOLLY FERNS. Braun s Holly Fern. The last of this trio oi Polysticliunis —P. Braunii—is, like the holly fern, an inhabitant of the more .northern parts of our continent. It is a sin- gularly decorative and beautiful species and belongs to a type that is found the world over. The typ- ical species is called Polystichiun aciileatiim and our plant was long thought to be a variety of it. It is now considered by most botanists to be a distinct species. The rootstock is short and thick and the fronds usually reach a height of two feet or more. They are lan- ceolate in outline on short stipes and twice pinnate. The pinnae are linear-oblong, usually acute, and broadest at base, their ovate or ob- long divisions appearing like small duplications of the holly fern's pin- nules, even to the ear on the upper side at base. Both stipe and rachis are densely clothed with short hair- like growths as well as with the ovate, brown scales common to its allies. The sori are on the backs of ordinary fronds and not very con- spicuous. The fronds remain green through the winter but the stipes are unable to hold them erect. On ac- count of the resemblance of the pin- Polystichuni Braunii,. 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 Nelson, b. 1869. New York, F. A. Stokes Co
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