386 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. $2 



In habit this species resembles D. Leprieiirii (Hook.) Kuntze, but 

 it can be distinguished by its reduced lower pinnae, scaly rachis, and 

 non-patent hairs. In the key to the species ("Revision," p. 268) it 

 must be placed between no. 56, D. Moritziana, and no. 57, D. cora- 

 zonensis; it is abundantly different from both. 



DRYOPTERIS DIPLAZIOIDES (Desv.) Urban. 



(Revision 312, No. 58.) 



To this species I refer with some doubt a specimen from 

 Guatemala : Near the Finca Sepacuite, Alta Veraipaz, Cook and Griggs 



DRYOPTERIS CONSIMILIS (Fee) C. Chr. 



Jamaica: Without locality, Jemnan. Mt. Moses, Harris 1555. Mansfield, 

 near Bath, 300 to 500 meters, moist shaded bank, Maxon 2370 ; at edge 

 of woods, Maxon 1796 (= Underwood 2770) ; Maxon 1788 (= Und. 

 2765). Trail from Bath to Cuna Cuna Pass, 1,000 to 2,000 ft., on a 

 wayside bank, Maxon 1723 (= Und. 2687). Near Tweedside, 2,000 ft., 

 grassy bank in the open, Maxon 989. Vicinity of Hollymount, Mount 

 Diabolo, about 750 meters, rocky ravine in humid forest, Maxon 2321. 



DRYOPTERIS HETEROCLITA (Desv.) C. Chr. 



Gymnogramme gracilis Hew. Mag. Nat. Hist. H. 2 : 457. 1838. 



Jamaica: Without locality, Jcnman. Vicinity of Cinchona, 1,500 meters, 

 shaded bank by trail, Maxon 1196 (^^Underwood 2336). At the 

 base of Blue Mountain Peak, 6,000 to 7,000 ft., Maxon 1453 (= Und. 

 2469). Cinchona Plantation, 5,000 ft., Underzvood 167. New Haven 

 Gap, 5,600 ft., Clute 205. 



My treatment in the "Revision" of these two closely allied species 

 is unsatisfactory. The specimens enumerated above show more 

 clearly the differences between the two species, which I point out 

 in the following table. Figures 37 and 38 of my "Revision" both 

 illustrate D. consimilis, although the latter in the position of the 

 sori resembles D. heteroclita. 



D. consimilis D. heteroclita 



Leaf 5-6 dm. long. Leaf 8-10 dm. long. 



Pinnre 8-10 cm. long by 1.5-2 cm. Pinnae 12-15 cm. long by 2.5 cm. 



broad. broad. 



Whole plant clothed with a dense Whole plant furnished with fewer 

 and coarse gray pubescence, the under but longer and stiffer hairs, some- 

 side sometimes with a few yellow times subglabrous on the under side 

 glands. and always without glands. 



Veins immersed, not very distinct. Veins raised above stramineous 



10-12 to a side. like the costae, 10-15 to a side. 



Sori distinctly oblong or linear Sori short, sometimes nearly round, 



about medial. distinctly supramedial. 



