1894. PROCEEDINGS OF THE NATIONAL MUSEUM. 223 



emerging at an angle of about 20°, all arching around to near the 

 margin along which they curve until Joined to tlie one next above, the 

 union being aftected by a series of simple loops; nervills prominent, 

 approximately at right angle to the secondaries, except when they 

 emerge from the midrib and join the secondary next below, producing 

 triangular or quadrangular areas; ultimate nervation obsolete. 



The fragment figured is the only one detected in the collection, and 

 although it appears distinct, is hardly sufficient for proper characteriza- 

 tion. It appears to differ markedly from all of the species of this.geuus 

 described by Heer, from Alaska. (See above.) It is most like J. nigeUa 

 Heer, but differs absolutely in having- a perfectly entire margin. J. 

 acuminata has an entire margin, but differs widely in nervation, while 

 the remaining species, J.picroides, differs in having- the margin sharply 

 serrate. 



The only fossil species witli which 1 am at i)resent able to compare it 

 is J. egreyia Lx.,* from the auriferous gTa\els of California. It much 

 resembles a segment taken from near the base of one of these nearly 

 entire leaves of this species. The nervation is i)ractically tlie same in 

 both. The margin of '/. vgrcgia has sometimes a, few small teeth, but 

 there is no indication that such w;is the case in the form under discus- 

 sion. 



Herendeeu Bay; Charles H. Townsend. Type, No. 37G2, U. S. N. M. 



UKTICACE.^:. 



FlCr.S ALASKAN A, Newberry. 



Newbkhky, Proc. U. S. Nat. Mus. Vol. v, 1882 (1883), p. 512; Plates, PI. Lii, tig. 

 1; i.v. figs. 1,2. 



Cook Inlet and Admiralty Inlet; Capt. Howard, U. S. Navy. 



"Leaves large, reaching 8 to 10 inches in length and breadth ; trilobed, 

 generally unsymmetrical; lobes pointed, usually obtuse; margins entire 

 or locally undulate; nervation strong, consi)icuously reticulate; princi- 

 pal nerves three, giving off branches which divide near the margins, 

 sometimes connecting- in festoons, sometimes craspedodrome; tertiary 

 nervation forming a coarse network of usually oblong meshes filled with 

 fine polygonal reticulation; upper surface of the leaf smoothe and 

 polished, lower roughened by the reticulation of the nerves." — [New- 

 berry.] 



FIC us MEM BRAN ACE A, N e w 1) err y . 



NEW15KKKY, Proc. U. S. Nat. Miis., Vol. v, 1882 (1883), p. 512; Plates, PI. Lix, 

 rig. 2. 



Cook Inlet; Capt. Howard, II. S. Navy. 



"Leaves seusile, 4 to 6 inches in length by 2.1 to 34 in width; ovate, 

 abruptly and usually blunt pointed, narrowed to the base, generally 

 unsymmetrical, margin entire, nervation delicate, open, cami^todrome; 



^Mem. Mus. Comp. Zool. Vol. vi., No. 2, p. 36, PI. ix, tig. 12. 



