D. punctilobula. 
Dennstaedtia punctilobula Moore, 1857. Ind. Fil. 
97. Underw. Nat. Ferns 122; in Britt. Man. 19. 
Bou.pErR FERN. 
Plants 6 dm. or higher; leaves oblong-lanceolate, 3- 
pinnatifid ; pinnae rather distant, r1 cm. or less in length, 
4 cm. or less in width, oblong-lanceolate; pinnules ob- 
long, decurrent on the rachilla, deeply pinnatifid ; lobes 
variously toothed or cleft ; stipes red-brown; rachis and 
lower face pubescent; sori borne on deflexed teeth, one 
at the upper margin of each lobe 
In rocky woods, Summer. 
22. MATTEUCCIA Todaro, 1866. 
Named in honor of Carlo Matteucci, an Italian 
physicist. 
Robust plants with creeping rootstock. 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. 
Osmunda struthiopteris L. Sp. Pl. 1066. 
Onoclea struthiopteris Hoffm. 1795. Deutsch. FI. 
2:11. Haton, Ferns 2: 201.t. 73; in Gray, Man. 
690. Underw. in Ill. Fl. 1:9. 
Struthiopterts germanica Willd. 1809. Enumer. 
1071. Clute, Ferns 257. Waters, Ferns 269. 
Matteuccia struthiopteris Todaro, Syn. Fil. Sic. 
Underw. Nat. Ferns 120; in Britt, Man. 19. 
50 
