DESCRIPTION OF SPECIES. 133 



Akalia Masoni, sp. nov. 

 PI. XV, Fig. 4. 



Leaf siibcoriaceoxis, palmately 3 to ,"> loliod; lobes oblong-lanceolate 

 acute or acuminate, entire, long and narrow; primary nerve rigid, stout, 

 percurrent; secondaries numerous, parallel, ()l)li([ue, and curved. 



The species is represented by a fragment, two lobes, iinely preserved, 

 showing part of an apparentl}' palmately five-divided leaf The lobes are 

 jcm ^.Q c)cm long, 2*"" broad in the middle or less, and are gradually nan-owed 

 from the middle downward to nai-row obtuse sinuses and ujiward to the 

 apex (broken), which is either acute or acuminate. The lateral nerves are 

 close, 3"" to 4""" distant, oblique, at an angle of divergence of ,50°, some- 

 Avhat curved in passing toward the borders. 



As far as can be seen from the fragment the species is closely related 

 by nervation and alsc^ by length and width of the lobes to A. angustUoba 

 Lesq.,' a si)ecies from the Upper Miocene of the auriferous gravels of Cal- 

 ifornia. By the shape of the lobes, their close disposition and narrow 

 .sinuses, the species is comparable to A. Jon/euseni Heer,'- from Unartok, 

 Greeidand wdiere it is associated with Launis primigema Ung., Vihunnim 

 marnhtatum Lesq., etc. Heer's species is repi'esented by a trilobate leaf 

 only, and the secondary nervation is totally obsolete. Hence, though the 

 form, size, and relative position of the lobes are really the same as in the 

 fragment figured here, it is uot possible to identify the species. 



Habitat: Ten miles northeast of Delphos, Kansas. No. 4063 of the 

 collection of Mr. R. D. Lacoe. 



Aralia subemarginata Lesq. 

 PI. XV, Fig. 3. 



Cret. and Tert. Fl., p. 63. 



Leaf large, coriaceous, palmately five-lobate; lobes short, rounded and 

 emarginate at apex; primary nerves in three pairs, supra-basilar, the lateral 

 ones forking at a short distance from their base; secondaries camptodrome, 

 distant, nuich curved in passing toward the borders, which they follow more 

 or less distantly, anastomosing in arches. 



This fine leaf, which measures 17"'" horizontally and 9™' vertically, is 

 palmately five lobate, with the lateral primary nerves alternate at base, 



' Mem. of the Museum of Comp. Zool., vol. 0, pt. 2, PI. v, Figs. 4, 5. 

 ■'Fl. Foss. Arct., vol. 7, p. 116, PI. ci, Fig. 1. 



