warD.] TRIASSIC FLORA OF YORK COUNTY, PENNSYLVANIA. 247 
Genus SPHENOZAMITES Brongmuart. 
SPHENOZAMITES RocERstanus Fontaine. 
Pl. XXIX, Figs. 8, 9. 
1883. Sphenozamites Rogersianus Font.:! Older Mesozoic Flora, of Virginia, Mon. U. 
8. Geol. Survey, Vol. VI, p. 80, pl. xliii, figs. 1, 1a; pl. xliv, figs. 1, 2, 2a, 
2b; pl. xlv, figs. 1, 2. 
Professor Fontaine simply remarks that this is correctly determined. 
Mr. Wanner’s notes are very meager: 
Figs 8 and 9, Pl. X XIX, present part of a turned-over leaf. The specimen is poor but 
shows the dichotomous forking of the nerves and the transverse bars, characteristics 
of Fontaine’s type specimen. 
But two specimens were found; the other, being equally fragmentary, while it 
agrees with the one illustrated, reveals nothing additional. 
Locality.—N. C. R. R. cut, south of York Haven. 
Genus CYCADEOSPERMUM Saporta. 
CYcADEOSPERMUM WaNNERI Fontaine n. sp. 
Pl. XXIX, Fig. 10. 
Mr. Wanner called this a ‘‘seed of Leptostrobus.” Professor Fon- 
taine says: 
This is not a seed of Leptostrobus but is probably one of some cycad. It is almost 
circular in form and looks somewhat as if it were winged, as represented by Mr. Wan- 
ner. This appearance is probably due to the accentuation, from pressure, of the 
thicker central portion of the nut. It has the dimensions 8 by 11mm. It may be 
called Cycadeospermum Wanneri. 
Mr. Wanner says of it: 
This seed, by reason of association with Leptostrobus, has been referred to it. 
Seeds of this kind were not found at York Haven. They are plentiful at the other 
locality, on the Little Conewago, suggestively associated with Brachyphyllum but not 
with Leptostrobus, the latter being unknown in this locality and represented by only 
one specimen at York Haven. 
Locality.—Little Conewago Creek, 14 miles west of Manchester, 
exploitation pit, green shale. 
1In view of the fact that Professor Fontaine did not find at Williame College the specimen figured 
by Emmons in his American Geology, Part VI, pl. vi, fig. 5, and described on p. 35 under the name 
Calamites punctatus, considered to belong to this species {see Mon. U. 8. Geol. Survey, Vol, VI, Pp. 98, 
and infra, p. 288) itis not thought best to enter that form in the synonymy, especially as its earlier 
date would involve a change of nomenclature. 
