NO. 1867 AMERICAN FERNS — CHRISTENSEN 373 



theless, I have some doubt if my proposed species can be held dis- 

 tinct from D. oligocarpa. 



DRYOPTERIS MUZENSIS Hieron. 



(Revision 280, No. 10.) 



Colombia : Hills of Miraflores above Palmira, Central Cordillera, 1,600 

 to 1,200 meters, Pittier 892. 



This specimen is larger than the type (leaf i m. long by 22 cm. 

 broad), but is otherwise typical. The main difference from D. 

 Columbiana is in the absence of long setae on the veins above. 



DRYOPTERIS VELATA (Kunze) Kuntze 



(Revision 286, No. 22.) 



This, the most beautiful species of the group, was rediscovered in 

 Cuba by Mr. Maxon in April, 1907. His specimens are from the 

 shaded talus of limestone cliffs at the Caverns of Thermopylse, 

 Monte Libano, province of Oriente, altitude about 600 meters (Xo. 

 4238). 



DRYOPTERIS ASPIDIOIDES SUBHASTATA C. Chr. 



(Revision 287, No. 23.) 

 Costa Rica: Cafias Gordas, 1,100 meters, Pittier 10990. 



[Note. — Nephr odium hrachypodum Baker, ^ mentioned in my 

 "Revision" as unknown to me, is represented in the U. S. National 

 Herbarium by a specimen of the type collection {im Thurn 275, not 

 225 as quoted in my "Revision"). It probably does not belong to 

 the group of D. opposita, but is rather an ally of the West Indian 

 D. sagittata (Sw.) C. Chr. It is not unlike D. ptarmica but is 

 smaller, with the pinnae sessile, entire or shallowly lobed, often 

 auricled on both sides at the base, the short stipe and rachis clothed 

 with small dark brown scales, the rachis and veins hairy.] 



^ Nephrodium hrachypodum Baker, Timehri 5:213. 1886; Trans. Linn. Soc. 

 II. Bot. 2 : 290. 1887. 



Dryopteris hrachypoda (Baker) C. Chr. Index Fil. 255. 1905. 



