Hymenophyllaceae
Read about Hymenophyllaceae in the Standard Cyclopedia of Horticulture
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Hymenophyllaceae (from the genus Hymenophyllum, signifying membrane-leaved). Filmy-fern Family. Fig. 2. Very delicate ferns, small or minute in size, frequently epiphytic: leaves entire, 1-3-pinnate, or dichotomously divided, rarely thalloid or orbicular, reduced in thickness to a single layer of cells between the veins, and thus often resembling the leaves of mosses; stomates absent; ultimate or all veins dichotomous: sori marginal, raised on a slender columnar projection of the veinlet: indusium cup-shaped: sporangium thin-walled; dehiscence vertical or oblique; annulus complete, horizontal: prothallium thalloid or filamentous, often much branched. There are 2 genera and about 200 species growing upon rocks and trees in the damp, shady forests of the tropics, and in New Zealand. One species reaches central Europe and another reaches Kentucky. The family is readily distinguished by the delicate leaf, pedicelled sorus and equatorial annulus. The Hymenophyllaceae require a warm and very humid atmosphere, and, therefore, most species are difficult to cultivate. Several species of Hymenophyllum and Trichomanes are in cultivation in America. CH
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References
- Standard Cyclopedia of Horticulture, by L. H. Bailey, MacMillan Co., 1963
External links
- w:Hymenophyllaceae. Some of the material on this page may be from Wikipedia, under the Creative Commons license.
- Hymenophyllaceae QR Code (Size 50, 100, 200, 500)