PROCEEDINGS OF THE NATIONAL MUSEUM. 227 



summit, wedye shaped at base; margins thickly set with minute, acute 

 appressed teeth." — [Newberry.] 



SAPINBACE.l^:. 



ACER MACROPTERUM, Heer. 



Heek, F1. Foss. Alask., p. 37, I'l. i.\, tigs. 7-1). 

 Port Graliam; H. Furuhjehu. 



ACER TRILOBATUM PRODUCTUM, (Al. JSi-.tiiu) Hcor. 



Plate IX, fig. 3. 



Herendeen Bay; Charles II. Townseud. 



The single leaf figured is the only one fouiul in the collection that 

 can be referred to this species. It is a small leaf about 3 cm. long and 

 2v) cm. wide, and agrees very closely with some of the figured European 

 specimens referred to this form. It is, for example, especially like figs. 

 5 and 6 of PI. cxiv and fig. 7 of PI. cxv of Heer's Fl. Terf. Relv. 

 These are small leaves with short lateral lobes and a prolonged central 

 lobe. The margin is cut by sharp irregular teeth and the nervation, 

 as nearly as can be made out, agrees perfectly with the European 

 forms. 



ANAOARDlAdE.E. 



RHtIS FRIGIDA, now Kj.c-i.'.s. 

 Plate IX, tig. C. 



Leaflets firm, thickish, broadly lanceolate in outline, rounded, heart- 

 shaped at base, bluntly acuminate at apex; margin sparingly toothed 

 above the middle, teeth pointing upward; midrib distinct, straight; 

 secondaries 7-S i)iurs, alternate or subopposite, emerging at an angle 

 of SO"^, camptodrome, arching in regular bows just inside the borders 

 and thus joining the one next above; nervills percurrent, usually 

 approaching a right angle to the midrib, but some also at right angles 

 to the secondaries in the lower part of the leaflet; finer nervation 

 obsolete. 



Herendeen Bay; Charles H. Town send. Type, No..".7(U, U. !S. N. M. 



The leaflets of this sj>ecies vary in size from 3-5 cm. to 5*25 cm. in 

 length and from 1-25 cm. to 2 cm. in width. They are all broadly 

 lanceolate in shape, with few teeth alwve the middle, and well marked 

 camptodrome nei nation. 



These leaflets were at first supposed to belong to what has been 

 described as? Fra.rinm HermrleenenHiH, n. sp., but after careful consid- 

 eration they have been separated. They differ fiom the above species 

 in being much narrower, lanceolate in fat5t, with a heart-shaped base, 

 and the secondaries emerging at a more aicnte angle. The characters of 

 the nervation iand arrangement of teeth iire precisely the same iu both, 



