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Anemia tomentosa var. anthriscifolia (Schrad.) Mickel

Comprehensive Description

provided by North American Flora
Anemia anthriscifolia Schrad. Gott. Gel. Anz
1824 : 865. 1824.
Rhizomes slender or stoutish, horizontally creeping, sometimes rather widely so ; fronds usually several, close, the stipe of the fertile fronds scarcely exceeding the sterile fronds. Fertile fronds 15-57 cm. long; stipes 5-40 cm. long, stoutish, dullor yellowishstramineous from a darker base, straight or subflexuous, deciduously pilose ; sterile lamina ovatedeltoid, 5-15 cm. long and broad, acute, bipinnate, nearly tripinnate at the base, the rachis similar to the stipe, the secondary rachises densely clothed with long subpersistent ferruginous hairs ; pinnae 6-11 pairs, mostly contiguous or overlapping, rarely apart, spreading, the lower and middle ones petiolate, ovate to oblong-lanceolate from a subcordate base subacute, the lowermost with 6-10 pairs of distant pinnules, the basal of these petiolate, obliquely pinnatifid close to the costa into about 5-7 pairs of acute serrate or pinnately incised segments ; succeeding pinnules sessile to narrowly or broadly adnate, finally confluent, lanceolate, acute, all sharply and obliquely pinnatisect ; upper pinnae gradually simpler, sessile, only the uppermost adnate, the divisions all oblique; leaf-tissue herbaceous, bright lustrous green above, paler below, pilose and glandular upon both surfaces, conspicuously so below ; margins thickened, usually revolute or recurved ; veins evident upon both surfaces ; fertile pinnae stout, rigidly erect, 8-20 cm. long, surpassing the sterile lamina, often greatly so, short-stalked, the branches elongate; spores striate, smooth or minutely echinulate, the angles not produced. Sterile fronds 10-30 cm. long ; lamina usually as long as the stipe, ovate or ovate-deltoid, or subpentagonal by the basiscopic development of the basal pinnae ; pinnules mostly anadromous, only those of the upper pinnae catadromous.
Type locality : Brazil.
Distribution : Widely distributed in Mexico ; also in Brazil, Paraguay, and Peru.
bibliographic citation
Lucien Marcus Underwood, Ralph Curtiss BenedictWilliam Ralph Maxon. 1909. OPHIOGLOSSALES-FILICALES; OPHIOGLOSSACEAE, MARATTIACEAE, OSMUNDACEAE, CERATOPTERIDACEAE, SCHIZAEACEAE, GLEICHENIACEAE, CYATHEACEAE (pars). North American flora. vol 16(1). New York Botanical Garden, New York, NY
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