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Blechnum

(Genus)

Overview

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Plants terrestrial or rarely on rock. Stems creeping to ascending or erect, slender to stout, some times climbing [rarely subarborescent]; scales brown or black. Leaves monomorphic or variously d imorphic, cespitose to scattered. Blades pinnatifid to 1-pinnate, rarely simple or 2-pinnate. Rachis and costae glabrous, scaly, or hairy abaxially. Veins free, often forked. Sori borne on vascular commissures parallel to costae, 1 per side, normally uninterrupted, linear, continuous along length of costa. Spores with perine smooth to variously winged or rugose. x = 28, 29, 31, 32, 34, 36.

Species ca. 220: mostly tropical, especially Southern Hemisphere.[1]

Photos

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Taxonomy

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The Genus Blechnum is further organized into finer groupings including:

Footnotes

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  1. Clifton E. Nauman "Blechnum". in Flora of North America Vol. 2. Oxford University Press. Online at EFloras.org.

Sources

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Last Revised: September 22, 2009
2009/09/22 16:33:52