1905] BRIEFER ARTICLES 369 
ten pairs of usually subopposite to alternate pinnae; pinnae ovate to deltoid, 
the middle ones to-13™™ long, the lowermost scarcely reduced, all deeply 
divided into about three blunt lobes upon both upper and lower margins, 
each lobe usually once soriferous near the outer side at the base, the sorus 
being borne at the extremity of a spur given off from the otherwise usually 
simple single veinlet; venation terminating well within 
the lobe; indusium minutely glandular, orbicular, 
centrally peltate. 
“Founded upon no. 868 of John Donnell Smith’s 
Guatemalan plants; said to have been collected by 
von Tiirckheim at Sesisp, Department of Alta Vera 
Paz, altitude 1200™, March 1886, and distributed as 
As pidium glandulosum. -The most perfect material 
of this number the writer has seen is that preserved 
in the D. C. Eaton herbarium at Yale University, 
and this, having served for the accompanying illus- 0”, 0. sp.; natural 
tration (fig. 2), may stand as the type, though the 
specimens in the United States National Herbarium and the herbarium 
of the New York Botanical Garden are of the same collection. Captain 
SMITH has stated (in litt.) that duplicates were presented also to the 
W. M. Canby, Philadelphia Academy, Kew, Berlin, Paris, and DeCandolle 
herbaria. 
Adenoderris sororia is distinct in all states from A. viscidula, though in 
its lax habit, slight texture, aspinulose margins, and glandular covering 
it shows an undoubted generic alliance with that species. It differs spe- 
cifically in its less size, bipinnatifid condition throughout (A. viscidula 
though larger is only deeply once-pinnatifid), more sparse glandular cover- 
ing, and in its spreading simpler included venation, the sori being borne 
terminally at the apices of the veinlets. In A. viscidula the veinlets are 
Pinnately forked and excurrent to the suberose margins, the sori being 
borne dorsally, i. é., upon the veinlets and at some distance from the margin. 
These differences, while very marked, appear to be no more than specific, 
and SuitH’s original generic diagnosis quoted above must therefore be 
amended as regards venation. : 
Both drawings, which are by Mr. H. D. Howse, are natural size. 
That of A. sororia represents parts of the third, fourth, fifth, sixth, and 
seventh pairs of pinnae of a frond of the type specimen—WruaM R. 
Maxon, 
