98 FOSSIL FLORA OF THE JOHN DAY BASIN, OREGON. [bull. 204. 



Planera {P. Ungerl Ett.) is also represented by a single example. 



The MoracejB were not abundant, being represented by three spe- 

 cies of Fieus and one of Artocarpus. The figs are all small leaves, 

 and are represented by few specimens, and they evid(Mitly played an 

 unimportant part in this flora. Artocarpus is unfortunately repre- 

 sented by only two or three fragments, which were referred by 

 Lesquereux to Aralia imngens Lesq. and Myrica (Aralia) Lessigii 

 Lesq. As nearh^ as can be made out, they are the same as my A. cal- 

 if ornica from the Auriferous gravels of California. 



The Berberidaceae are represented by the very distinct and still 

 unique Berherk simplex of Newberry. It is undoubtedly closely 

 related to the living B. aquifoUa^ which is so abundant in the region. 



The Magnoliaceffi are represented by three species, two of which [M. 

 Oulveri and 31. lanceolata) are found in the lowest beds of the region, 

 and one (J/. Inglefieldi) in the Mascall beds. 



The Lauraceffi are represented by three species — one of Laurus, in 

 the Mascall beds, and two of Cinnamomum, one of which {C. Billeri 

 Kn.) is found at Cherry Creek and the other (6'. Bendirei) in the 

 Bridge Creek beds. 



After much consideration it has seemed probable that the family 

 Hydrangeacese is represented by the curious sterile flowers which 

 were first called Marsilea Bendirei by Ward and transferred to Porana 

 by Lesquereux. The evidence on which it is changed to Hydrangea is 

 fully set forth in the discussion of this species (ante, p. 60). 



Liquidambar, representing the Ffamamelidacea?, was evidently an 

 important group in this flora. Five forms have been detected, several 

 of which are represented by a considerable number of specimens. 

 They all come from the middle and upper plant-bearing beds of the 

 region. The large leaves from Bridge Creek are referred to L. eiiro- 

 pseum, although they approach quite closely in certain specimens to 

 Z. californicum of Lesquereux. Under the name of L. europseum 

 'patulimi I have characterized a form from the Mascall beds with very 

 broad three-lobed leaves. The identification of Unger's L. protenswn 

 by Lesquereux is open to doubt. It lests upon a single broken 

 example, and may belong to JLcer dimorphuu Lesq. A very peculiar 

 thick-leaved form has been named Z. pachyphyUum. It is wholly 

 unlike any of the other forms found in the region. 



The Platanacege formed an important family, represented by five 

 forms and a large number of examples. Of these P. aspera Newb., is 

 peculiar to the Bridge Creek beds, being a medium-sized species with 

 sharp upward-pointing lobes. The largest and most abundant form is 

 P. Gmidoni^ originally described by Newberry as a questionable Ficus. 

 This is undoubtedly very closely allied to Ward's P. hasilohata, if, 

 indeed, it is not actually identical with that species. The main differ- 

 ence lies in the basal lobes. In P. hasilohata these are several times 

 the size of those in P. Condoni, and appear to be always deeply lobed, 



