Plants 5-10 dm. high; teaves 2-pinnatifid ; pinnae al- 
 ternate, lanceolate, 0.5-1.5 dm. long; sori at length con- 
fluent. 
In moist woods and swamps. Summer, 
13. LORINSERIA Pres], 1849. 
Genus dicatum in honorem Gustavi Lorinser . Prest. 
Epimel. Botanica 72. 
Robust ferns. Rootstock long, creeping. Leaves of 
two kinds. Sori oblong, in rows parallel to the midribs 
of the pinnae. 
1.L. areolata (L.) Pres]. PEO; 
Lonchitis major Virginiana . . Morison, Hist. 
569. sect. Bs t.2 
Acrostichum fronde pinnata. . Gron. F\. 124. 
A. areolatum ©. Sp. Pl. 1069. 
Woodwardia angustifolia J. E. Smith, \.c. Sule 
Fraton, Ferns 1: 165. t. 22. f. 2;-in Gray Man. 
683. Clute, Ferns 221. Waters, Ferns 124. 
Lorinseria areolata Presl, \. c. 
Woodwardia areolata Moore, 1857. Ind. Fil. 45. 
Underw, in Ill. Fl. 1: 20; Nat. Ferns 103; in 
Britt. Man. 10. 
Cian Fern. 
- Plants 5-S dm. high; sterile leaves deeply pinnatifid or 
nearly pinnate, lobes 5-S cm. long, 1-2 cm. broad; fer- 
tile leaves taller, pinnate; pinnae linear, 5-10 cm. long. 
Inswamps or wet places. Summer, 
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