FOSSIL FLORA. 749 



AkALIA SI). 



Tliis fvag-ment is the only one of this type observed, and is too poor 

 to admit of satisfactor}' identification or characterization if it be new. It 

 consists of a portion of what ap})ears to be the central lobe and 2 lateral 

 lobes of a 3-lobed form. The .sinuses are rounded and the middle lolie is 

 eularo-ed above, with the maro-ins entire. A secondary nerve passes up to 

 the sinuses, and the lobe has about 5 or 6 pairs of alternate much arclied 

 camj^todrome secondaries. It is quite unlike any other form observed, so far 

 as can be made (,)ut. 



Habitat: Hague's Yellowst.we Park collection, Fossil Forest section. 

 No. 22c; collected by Wright and AVeed, September 20, 1885 (field No., 



1959). 



CORNACE.E. 



CoRNUS Newbenyi Hollick. 



PI. cm, tig. 0. 



Cormts Xewberryi Hollick, in Kuuwltoa: Bull. U. S. Geol. Surv. ^o. 152, p. 77, 1898. 

 Cornus acuminata Newby : Later Extinct Floras, etc., Ann. Lye. Nat. Hist. New York, 

 Vol. IX, 1808, p. 71; 111. Cret. and Tert. PI., PI. XX, figs. 2-4; Plates (ined), 

 PI. XXXVII, tigs. 2-4. 



Represented by a number of well-preserved leaves, agreeing well with 

 Newberry's figures and description. 



Habitat: Yellowstone River, one-half mile and also 1 mile below mouth 

 of Elk Creek, at top of bluff; collected by F. H. Knowlton. Also found 

 on south side of Stinkingwater Valley on high blufi" east of the mouth of 

 Crag Creek; collected by Arnold Hague, Septemlier 4, 1897. 



Cornus wrightii n. sp. 

 PI. GUI, iigs. 4, 5. 



Leaves of firm texture, elliptical-lanceolate, narrowed below and 

 apparently slightly decurrent, rather obtuse at apex; margin perfectly 

 entire; midrib rather thin, slightly flexuose; secondaries 4 or n pairs, lower 

 pair opposite, others alternate, at various angles, curving along the margin 

 and in the upper part, turning by a broad bow to the apex; nervilles few, 

 approximately at right angles to the midril>; finer nervation not preserved. 



