102 PP. REPORT OF PROGRESS. FONTAINE & WHITE. 



is grooved on the upper side. Shape of leaf probably sub- 

 reniform-flabellate ; nerves, arising from the summit of 

 the petiole and from the basal rim, the latter strongly di- 

 verging from the rim, and soon passing in a direction at 

 right angles to it, on to the terminal margin of the leaf, 

 forking near the point of insertion, and again forking once 

 or twice, the branches diverging but slightly, and soon be- 

 coming nearly parallel to each other. ) 



This fine leaf was seen only in a fragmentary condition. 

 It must have had a considerable expanse. The length of 

 the lamina of the leaf seen is 8 cm. ; the width, 9^ cm. ; 

 length of jjetiole seen, nearly 10 cm. ; thickness, 6 mm. 

 The furrow on the petiole is very distinct, and the thick- 

 ness of the basal woody rim is 2| mm. Fragments of the 

 lamina, seen on the shale containing the portion depicted 

 in Fig. 4, PI. XXXVIII, show by their position that they 

 belonged to the same specimen, and indicate a leaf at least 

 15 cm. from base to summit, with a lateral expanse of 20 cm. 



Habitat. — Roof shales of the Waynesburg Coal, Cass- 

 ville, W. Va. 



Saportcea salishurioides. Sp. nov., PL XXXVIII, Figs. 

 1-8. 



(Leaf, suborbicular-cuneate, flabellate, margin slightly in- 

 cised into ribbon-like lacinise ; petiole, slender ; nerves, 

 arising from the summit of the petiole and from the basal 

 rim, the latter departing under an acute angle, much as in 

 Salisburia, all forking sparingly with the characters of the 

 genus ; basal woody cord comparatively slight, but well 

 defined.) 



The dimensions of tlie most perfect specimen seen showed 

 the length from base to summit lo be 7^ cm., and the lat- 

 eral dimensions to be about 10 cm. The plant was evi- 

 dently much smaller than Sapor tsea grandifolia, and does 

 not seem to have been so liable to split up, during growth, 

 into lacinise. The right hand segment of the leaf depicted in 

 Fig. 3, PL XXXVIII, shows incisions which seem normal to 

 the species, and not the result of accidents ingrowth. This 

 plant, also, was always found in a fragmentary condition, 



