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Published In: Annals of the Carnegie Museum 49(11): 177. 1980. (Ann. Carnegie Mus.) Name publication detail
 

Project Name Data (Last Modified On 7/9/2009)
Acceptance : Accepted
Project Data     (Last Modified On 7/9/2009)
Status: Native

 

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1. Deparia acrostichoides (Sw.) M. Kato (silvery spleenwort, silvery glade fern) Pl. 4a,b; Map 19

Athyrium thelypterioides (Michx.) Desv.

Diplazium acrostichoides (Sw.) Butters

Rhizomes prostrate, short-creeping. Rhizome scales concolorous, light brown, lanceolate. Leaves monomorphic, 40–110 cm long. Petioles shorter than the leaf blade, with scattered, light brown scales and multicellular hairs, the bases with 2 vascular bundles. Rachises with multicellular hairs, sometimes also sparsely scaly. Leaf blades lanceolate to elliptic in outline, 1 time pinnately compound. Pinnae 2–14 cm long, lanceolate to linear, the tips attenuate, deeply pinnately lobed, the margins entire or shallowly toothed. Veins not anastomosing. Sori linear. Indusia attached laterally, arching over the sori. Spores 64 per sporangium, monolete, 25–50 mm long, brown. 2n=80. June–September.

Widely scattered through the eastern half of the state (eastern U.S. and adjacent Canada west to Kansas). Mesic forests in the bottoms of ravines and sinkholes, and in the valleys of streams, on a variety of substrate types.

 


 

 
 
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