NO. 1867 AMERICAN FERNS — CHRISTENSEN 381 



Herbarium, No. 427229. Banks at the left of Moody's Gap, 4,000 ft., 

 /■enman. 

 Grenada: In sylvestribus umbrosis ad Mt. Filix, 1,500 ft., Eggers 6036. 



Differs from the type by its equal-sided pinnae with patent or a 

 h'ttle oblique, oblong segments, which generally bear 3 or 4 obtuse 

 teeth at the apex ; veins not prominent. 



This variety thus recedes from the type towards D. opposita and 

 D. panamensis ; it differs from these species like the typical form, 

 by its distant pinnae, by its only a little elongated basal segments, 

 which at their inner side bear an auricle overlying the rachis, b> 

 its almost completely glabrous frond and by its caudate-acuminate 

 pinnae. The natural position of this species in my system must be 

 next to D. opposita. 



DRYOPTERIS SCALPTUROIDES (Fee) C. Chr. 



(Revision 298, No. 34, Fig. 22.) 



Jamaica: Moody's Gap, 3,000 ft., Clute 173. Vicinity of New Haven 

 Gap, 1,650 meters, border of forest, Maxon 2659. Without special 

 localit}^ 1,500 meters, Hart 128. 



These three specimens belong to my variety jamaicensis (Revi- 

 sion 299), which differs from the Cuban type by the glandular under 

 surface and less pubescent upper side of the lamina. While the 

 specimens from Cuba have their upper side throughout coated with 

 short, hamate hairs, such are rarely found in the Jamaican form, in 

 which the veins above are furnished with more stiff setae. These 

 constant differences between the specimens from the two islands 

 make it probable that the plants from Jamaica represent a distinct 

 species. This variety can be mistaken for D. Nockiana; still, it is 

 much more hairy and more firm, even coriaceous in texture. 



DRYOPTERIS FIRMA (Baker) C. Chr. 



(Revision 299, No. 36, Fig. 24.) 



Jamaica : Slopes of Monkey Hill, 1,800 meters, forest ravine, Maxon 

 2730. At the summit of Blue Mountain Peak, at about 7,400 ft., dry 

 path-edges, Maxon 1438 {=^ Underwood 2553). 



These beautiful specimens show more fertile leaves, which are on 

 longer stems than the sterile ones and richly soriferous. The young 

 sori are furnished with a densely setose indusium, which sometimes 

 bears one or two glistening yellow or red glands. The basal pair of 

 segments in the larger pinnae is prolonged as in D. opposita, or in 

 the sterile leaves the upper basal segment is somewhat reduced. The 



