DICKSONIA PILOSIUSCULA, Willdenow. 



Hay-scented Fern; Hairy Dicksonia. 



DiCKSONiA PILOSIUSCULA: Root-stock very slender, creep- 

 ing, much elongated; stalks scattered, erect, sometimes a foot 

 long, greenish in the living plant, fading to brownish-straw- 

 color, slightly puberulent ; fronds one to three feet long, ovate- 

 lanceolate in outline, long-pointed, delicately herbaceous, hairy 

 and minutely glandular, pinnate or almost bipinnate; pinnae 

 numerous, lanceolate, pointed, the second pair a little longer 

 than the first; pinnules adnate to the secondary midrib, and 

 usually decurrent on it, rhomboid-ovate, pinnatifid into oblong 

 and obtuse cut-toothed lobes ; sori minute, in cup-like involu- 

 cres which are seated on minute recurved teeth, usually one 

 at the upper margin of each lobe of the pinnules. 



Dicksonia pilosiuscula, Willdenow, "Enum. PI. Hort. Berol., p. 1076; 

 Sp. Fil., V, 484. — PuRSH, Fl. Am. Sept., ii, p. 671. — Hooicer, 

 Fl. Bor.-Am., ii, p. 264. — Torrey, Fl. New York, ii, p. 502. — 

 BiGELOW, Fl. Boston., ed. iii, p. 424. — Wood, Botanist and 

 Florist, p. 376. 



Polypodium pilosiicsculum, Muhlenberg "in litt." 



Sitolobium (or Sitobolium) pilosiusculum, Desvaux, "Prodr., p. 262." 



Adectum pilosiusculum. Link, Fil. Hort. Berol., p. 42. 



