>80 CRYPTOGAMIA.— FILICES. 



Seeds angular, attached to numerous filiform re 

 ceptacles. 



CRYPTOGAMIA. 

 FILICES. 



593. POLYPODIUM. Polypody. 



1. P. vulgare: fronds deeply pinnatifid ; segments li^ 



near-lanceolate, obtuse, crenulate, approximate , 

 the upper ones gradually smaller ; caudex chaffy ; 

 stipe smooth. 

 IIAB. Shady rocks. July. Fronds 8 — 12 in, high, 

 smooth ; segments 3 — 4 lin. broad, somewhat cur- 

 ved. 



2. P. hexagonopterum : fronds bi pinnatifid, rather 



smooth, circumference triangular, two of the lower 

 divisions deflexed ; segments lanceolate, obtuse, 

 ciliate, the upper ones very entire, lower ones in- 

 cisely crenate ; the lowest adnate-decurrent ; soil 

 minute, solitary; stipe smooth. 

 IIAB. Moist wood*. Aug. Fronds 12 in. high, 

 very broad ; divisions acuminate, separate. 



3. P. connectile : fronds bipinnatifid, ciliate, triangular 



divisions opposite, contiguous, adnate ; segments 

 subelliptical ; stipe chaffy ; sori minute. 

 IIAB. Woods. Aog. Fronds 12 in. high, oblong, 

 triang. ; segments closehj approximate at base. 



4. P. Dryopteris : fronds female, bipinnate, patulou- 



and detlexed ; segments obtuse, subcrenate ; soii 

 marginal ; root filiform. 

 •HAB. Rocky woods. Aug. Frond 8 — 12in.hi»';. 

 triang. ; stipe slend. ; sori at length subconjl. 



591. HYPOPELTIS. 



H. obtusa. 



HAB. Rocky Woods. Aug. Fronds 8 — 14 in. 

 high, bipinnate; divisions sub remote ; segments ob- 

 long, the lower ones crenate-dentate^ rachis pubis. 

 above ; sori subconjliicni. 



