W. obtusa. 
Woodsta obtusa Torr. 1840. Geol. Report N. Y; 
Bi NG 22500 Lieto. ls ci 2 sehOOut a7 taste 
5-8; in Gray, Man. 691. Underw. in Ill. Fl. 1: 
11; Nat. Ferns 122; in Britt. Man. 18. Clute, 1. 
c. 96. Waters, 1. c. 280. 
WoopsIA. 
Plants 2-4 dm. high; leaves linear-lanceolate ; pinnae 
tapering both ways, 4 cm. or lessin length, ovate-oblong, 
pinnules oblong, obtuse, 1 cm. or less in length, lobes 
rounded, variously toothed ; sori at length confluent. 
In rocky woods. 
21. DENNSTAEDTIA Bernh. 1801. 
In memortam Dennstaedtit, autoris Florae Vinar- 
zensis, genert nomen atiribut, Bernh. Schrad. Journ. 
Bot. 1800; 2 pt. 124. 
Rootstock slender, creeping. Leaves of delicate text- 
ure. Sorismall, marginal, at the end of the free veinlets. 
Indusium cup-shaped. 
1. D. punctilobula (L. C. Rich.) Moore, Plz: 
Nephrodium punctilobulum L. C. Rich.; Michx, 
FI. 2: 263. 
Dicksonia prlostuscula Willd. 1809. Enum. 1076, 
Laton, Ferns 1: 339. t. 44; in Gray, Man. 691, 
Clute, Ferns 229. Waters, Ferns 286. 
Dicksonia punctilobula Hook. 1846. op. Filic. 1: 
[9 Cader, inate gues 
e 49 
