118 MESOZOIC FLORAS OF UNITED STATES. 



strongly away from the leaflets. These are now preserved only in their 

 lower portions. The nerves are single, strong, parallel, and vaguely 

 shown. 



Genus CYCADEOSPERMUM Saporta. 



Cycadeospeemum oregonense Fontaine n. sp. 



PL XXIX, Fig. 4. 



A single specimen of a small nut-like seed was found at locality 

 No. 2. It seems to be the seed of some cycad. It is hard and bony, 

 with a smooth polished surface. It is elliptical in form and narrows 

 to both ends, one of which is rounded off, while the other is somewhat 

 prolonged into a short acute tip. It is widest in the middle and is there 

 6 mm. wide. The length is 10 mm. 



Cycadeospermum ovatum Fontaine n. sp. 



PI. XXIX, Fig. .5. 



A single specimen of a small nut was obtained from locality No. 7. 

 It is apparently the seed of some cycad. It has a hard, bony, and 

 smooth surface. It is widest at its base and is rounded off there. It 

 narrows to the opposite end, which is obtuse. At this end there is a 

 ridge which runs up a little way into the l^ody of the nut. This may 

 be due to puckering from -pressure, causing a wrinkle, but this is not 

 probable. The nut is 10 mm. long and 6 mm. wide at base. 



Order BENNETTITALES. 



Family BENNETTITACE.E. 



Genus WILLIAMSONIA Carruthers. 



WiLLiAMSONiA OREGONENSis Fontaine n. sp. 



PL XXIX, Fig. 6. 



A single fine specimen of the inflorescence of a Williamsonia was 

 found at locality No. 7. There is nothing to show a connection between 

 this plant and the numerous cycads found at that localit}'. On the 

 same piece of rock, however, a well-preserved fragment of Pterophyllum 

 cequale (Brongn.) Nath. occurs. The fossil is large and globular in 

 form, showing a whorl of bracts incurved so as to hide any object within 

 them. The bracts are thick in texture and without any midnerve, 



