ously toothed or cleft ; stipe?; red-brown ; rachis and low- 
er face pubescent; sori borne on deflexed teeth, one at 
the upper margin of each lobe. 
In rocky woods. Summer. 
22. MATTEUCCL\ Todaro. 
Named for Cai^lo Matteucci^ ait Italian physicist. 
Robust plants with creeping rootstocks. Leaves in a 
crown, forming handsome clusters. Fertile leaves re- 
duced, pinnate, the contracted pod-like divisions enclos- 
ing the sporangia. 
1. M. struthiopteris (L.) Todaro. 
Osinunda strutliloptcrls L. Sp. PI. io66. 
Ojioclea struthlopte7'ls Hoffm, 179^- Deutschl. 
Fl. 2: II. Eato72^ Ferns N. Am. 2 : 201. t. 
73 ; in Gray, Man. 690. Uuderiv. in 111. Fl. 
Struthiopteris gei'uiaiilca WlUd. 1809. Enum. 
Hort. Berol. 1071. C////<?, Ferns 2s;7^ Waters.^ 
Ferns 269. 
Matteuccla struthiopteris Todaro, 1866. Syn. 
Fil. Sicilia, 30. Underxv . Ferns 120; in 
Britt. Man. 19. 
Ostrich Feiin. 
53 
