644 PROCEEDINGS OF Till-: NATIONAL MUSEUM. vol.38. 



The specimen from Deep Bottom, Virginia, which is the most 

 southerly outcrop of the Patapsco formation known and the only one 

 of this age in the James River Valley, forming the basis for the species 

 Aralia dubia Fontaine (Aralia fontainei Knowlton), is doubtfully 

 included under the synonymy of this species, since it appears to 

 represent a macerated and distorted specimen of the terminal leaf- 

 lets of a large Sapindopsis. There is certainly no ground for retain- 

 ing it in the genus Aralia. Likewise the specimens which formed 

 the basis for Ficophyllum eucalyptoides Fontaine are clearly referable 

 to this species of Sapindopsis and have nothing in common with 

 Ficophyllum. 



Occurrence. — Patapsco formation. Near Brooke, 72d milepost, 

 near 72d milepost, Deep Bottom ( ?), near Widewater and Aquia Creek, 

 White House Bluff, Virginia, Stump Neck and Fort Foote, Maryland. 



Collections. — U. S. National Museum, Johns Hopkins University. 



SAPINDOPSIS BREVIFOLIA Fontaine. 



Sapindopsis brevifolia Fontaine, Monogr. U. S. Geol. Surv., No. 15, 1890, p. 300, 

 pi. L.")l5, fig. 4; pi. 155, figs. 1, 7; pi. 163, fig. 3.— Fontaine, in Ward, Monogr. 

 U. S. Geol. Surv., No. 48, 1905, pp. 481, 482, 528. 



Description. — Leaves odd-pinnate, the terminal leaflet considerably 

 larger than the lateral leaflets of which but two pairs are known. 

 These are opposite. Leaflets somewhat crowded, so that their mar- 

 gins often overlap, with subacute tips, varying in length from 2 to 5 

 cm. and in width from 0.8 to 1.6 cm., averaging about 3 cm. long by 

 1.3 cm. wide. Inequilateral toward the base and showing consid- 

 erable variation in decurrence even among the few specimens known, 

 in some the rachis is conspicuously winged, while in others the leaflets 

 are all petioled,' the whole having the aspect of some member of the 

 Lcguminosse. Midribs stout, secondaries ascending, camptodrome, 

 scon with difficulty, since the leaf texture is coriaceous. 



This is a poorly marked species of infrequent occurrence at the 

 same localities where the other species of this genus occur and may 

 simply represent variant forms of the abundant Sapindopsis variabilis. 



Occurrence. — Patapsco formation. Near Brooke, 72d milepost, 

 Aquia Crook, Virginia; Fort Foote, Maryland. 



Collections. V . S. National Museum, Johns Hopkins University. 



"The table on page 586 of Monogr. is, I'. S. Geol. Surv., gives Colchester road as 



an additional locality for this species. This occurrence is not mentioned in the text, 

 and the writer has failed to locate the specimen, if one existed, among the fragmentary 

 material from this locality. 



