(156) 
Previous to the discovery of the specimens which are the 
subjects of our illustrations only a single leaflet of this species was 
recorded from Long Island, which was referred to P. angustifo- 
lius.* The aggregation of specimens shown on Plate 163, Figs. 2, 
3, however, which are all included in the single large piece of 
matrix represented, in part, by Plate 162, indicate a great diver- 
sity in the shape and size of the leaflets and, did they not occur so 
closely associated together, might well be regarded as belonging 
to two different species—the broader ones referable to P. lanceo- 
latus and the narrower ones to P. angustifolius (Eichw.) Schimp. 
= P. Knowltont Berry);{ and in this connection it is interesting 
to note that Newberry{ grouped together a closely similar lot of 
specimens, from the Cretaceous of New Jersey, under P. angusti- 
folius, with the following qualifying remark: “In general appear- 
ance these leaves are not unlike some of the many forms of P. 
lanceolatus, but are usually longer, narrower, and more flexuous in 
outline.” One of Newberry’s specimens (Newb., doc. cit., f. 2) un- 
doubtedly belongs to the latter species and, judging from a com- 
parison of all of the material now available, the conclusion may 
be justified that probably one species only (P. lanceolatus) is repre- 
sented by all of the specimens mentioned from New Jersey and 
Long Island. 
Locality: King’s gravel pit, Roslyn, N. Y. Hllick, Sept. 26, 
1906. 
WILLIAMSONIA PROBLEMATICA (Newberry) Ward 
(PLaTE 163, Fic. 4) 
Williamsonia problematica (Newb.) Ward, Fifteenth Ann. Rept, 
U.S. Geol. Surv. 1893-94: 382. 1895. 
Palaeanthus (Williamsonta) problematicus Newb., Monog. U. S. 
Geol. Surv. 26 (Fl. Amboy Clays): 125, pl. 35, f. -9. 18 
This specimen is undoubtedly generically identical with the 
organisms to which the above bi-generic name was given by 
Newberry and, apparently, it represents the same species. 
In our specimen, the first one thus far recorded from Long 
Island, the outer floral envelopes are missing, and the interior 
* Hollick, A., Bull. New York Bot. Gard. is 410, pl. 77, - 1905. 
t Berry, E. W., Bull. aie a Club 36: 247. May, 
t Newberry, J. S., Monog. . Geol. ao 26 (FI. yee Clays): 44, 
pl. 13, f. 1-4. 
