78 American Fern Journal 



mm. broad, acute or short-acuminate, glab'rous, the 

 costa beneath excepted, this very minutely hairy; base 

 of pinnae with a rounded or subacute auricle on each 

 side (basal segments) ; margins of pinnae crenate or more 

 or less pinnatifidly incised, most deeply so at the middle 

 and on the lower side, the latter usually more deeply 

 lobed than the upper, still scarcely halfway to the costa; 

 outer third of the pinnae often quite entire, like several 

 of the lower and shorter pinnae. Lobes rounded, 

 oblique. Veins raised above, furcate or simple in the 

 entire part of the pinnae, pinnately branched in the 

 lobes with 4 or 5 branches (tertiary veins), the two basal 

 ones reaching the margin above the sinus between the 

 lobes. Sori near the margin, this sometimes revolute 

 and covering the sori. Indusium large, brown, reni- 

 form, hispid (especially on the edges) by simple setae. 

 Sporangia glabrous. 



Cuba: Vicinity of Camp San Benito, Oriente, alti- 

 tude 900 meters, on the ground, February 24, 1910, J. 

 Shafer 4037 (U. S. Nat. Herb. no. 057791, type). 



Quite 



Moa, Oriente, Cuba. J. A. Shaf, 



(U. S. Nat. Herb.). 



Dryopteris Shaferi is closely related to D. scalpturo- 

 ides (Fee) C. Chr., agreeing with it in most essential 

 characters, differing from it mainly in its very narrow 

 pinnae, which are less incised and glabrous above. In 

 general habit our new species recalls D. sagittate (Sw.) 

 C. Chr., especially its variety tenebrica (Jenm.) C. Chr.; 

 but that species, belonging to the subgenus Goniopteris, 

 is in all important characters widely different. The 

 resemblance between the two is due to the narrow, has- 

 tate or sagittate pinnae. Dryopteris Shaferi is remark- 

 able, among the species of the section Lastrea, in hav- 

 ing its pinnae crenate, or barely pinnatifid, in which 

 character it agrees only with the otherwise very differ- 

 ent D. brachypoda (Bak.) C. Chr. 



