JURASSIC FLORA OF DOUGLAS COUNTY, OREG. 119 



linear in form with obtuse ends. The globular inflorescence is broader 

 than long, having a width of 5 cm. and a height or length of 35 mm. 

 It is quite convex and stands well out from the rock. The inflores- 

 cence is ]:)orne on the summit of a stout peduncle, showing a length of 

 35 mm., being obvioush^ not entire. The entire width is not preserved. 

 The portion shown is 15 mm. wide. This seems to have been largely 

 composed of cellular tissue, and to have been succulent. In general 

 form the bracts resemble those of Williamsonia gigas (Willn.) Carr., 

 as given by Saporta in fig. 2, pi. xvi, Vol. IV of the Plantes Jurassiques, 

 but they are not so long as those of Saporta, and do not taper at all 

 toward their tips. 



Williamsonia ? sp. Fontaine. 



Bract of Williamsonia No. 1. 



PL XXIX, Fig. 7. 



A thick, fleshy object resembling a leaf was obtained from locality 

 No. 7. It is a good deal distorted and has at present an ovate shape. 

 It is somewhat convex from pressure, and on casual inspection looks 

 somewhat like a nut. It was, however, too soft for this to be the case. 

 It is broadest at base and tapers ovately to the tip, which is obtuse. 

 The base shows traces of an original cordate shape. At about the center 

 of' the basal margin there is a rounded depression that looks as if the 

 object had been joined to its support by articulation. The fossil looks 

 more like the bract of the involucre of some form of Williamsonia. 



Williamsonia ? sp. Fontaine. 



Bracts of Williamsonia ? No. 2 (a, b, c). 



PI. XXIX, Figs. 8-12. 



Three objects were found at locality No. 19 that at first sight might 

 seem to be nut-like seeds. They are, however, most probably thick, 

 fleshy bracts or leaves, and appear to l^elong to the inflorescence of some 

 Williamsonia. Although, as shown on the rock, they are slightly con- 

 vex, they are not enough so for a nut-like seed, and besides they show 

 evidence of having been too soft for such objects. The leaf substance 

 is represented by a film of coal of considerable thickness, which, how- 

 ever, is not always present, having been stripped off. The slate under 

 this coal film shows a distinct nervation, which is not visible on the 



