48 BEAUTIFUL FERNS. 
Onoclea Struthiopteris, Hoffmann, “ Deutschlands Flora, p. ii (1795).” — 
Swartz, Syn. Fil., p. in. — Weber & Mohr, Taschenbuch, 
p. 47, t. iv., f. 3, 4. — ScHKUHR, Krypt. Gew., p. 97, t. 105. — 
Mettenius, Fil. Hort. Lips., p. 97, t. xvii., f. 11-15. — Milde, 
Fil. Eur. et Atlant., p. 154. 
Ojioclea nodulosa, Schkuhr, Krypt. Gew., p. 97, t. 104 (Perhaps also 
of Michaux, but this is still uncertain). 
Otioclea Germanica, Hooker, Sp. Fil., iv., p. 16 1. — Hooker & Baker, 
, Syn. Fil., p. 46. 
Osmunda Struthiopteris, Linnzeus, Sp. PI., p. 1522. 
Struthiopteris Germanica, Willdenow, “ Enum, p. 1071;” Sp. PI., v., 
p. 288. — Link, Fil. Hort. Berol., p. 38. — Hooker, FI. Bor. -Am., 
11., p. 262. — ^Torrey, FI. New York, ii., p. 486. — Gray, Man- 
ual, ed. i., p. 623, etc. — Kocii, Syn. FI. Germ, et Helv., ed. 
111., p. 739. — Williamson, Fern-Etchings, t. 44. 
Struthiopteris Pennsylvanica, Willdenow, Sp. PL, v., p. 289. — PuRsn, 
FI. Am. Sept., ii., p. 266. — Torrey, Compendium, p. 385. — 
Bigelow, FI. Boston., ed. iii., p. 421. 
Striithiopteris, the genus only, Willdenow, in Berl. Mag., 1809, p. 160. 
Hab. — Low grounds, especially in fine alluvial soil subject to the 
overflow of rivers ; from the Saskatchewan and Lake Winnipeg to New 
Brunswick, and southward to Pennsylvania and Illinois. Mentioned by 
Alexander Braun as coming from Arkansas. From Lapland to Sicily, 
and eastward to the Amoor region, Sachalin and Kamtschatha. Not 
known in the western parts of either Europe or America. 
Description: — The ostrich-fern is one of our finest ferns, 
being surpassed in grandeur only by Acrostichutn auretmi, 
Woodwardia radicans, and perhaps Osmunda regalis. The 
