DESCRIPTIONS OF SPECIES. 105 



Order GENTIANALES. 

 Family ASCLEPIADACE^. 



Periploca cretacea, n. sp. 

 PI. XL, fig. 16. 



Leaf elliptical to slightly obovate in outline, 1 decimeter long by about 3 centimeters maximum width, 

 entire, tapering to an acute base and abruptly narrowed to a long acute apex; midrib flexuous, thick at the base 

 and relatively thin above; secondary nervation fine, close, leaving the midrib at acute angles of divergence and 

 connected by fine reticulated tertiary cross nervation. 



This leaf is unique in our collection and I have been unable to compare it with 

 any described species from elsewhere, although it is suggestive of several which have 

 been included, under other generic names, in the Asclepiadacese and Apocynacese, 

 from the Tertiary of Europe. a 



Locality: Gay Head, Marthas Vineyard. Collected by David White. Speci- 

 men in U. S. Nat. Mus. 



Order RUBIALES. 

 Family CAPRIFOLIACE^. 



Viburnum Hollickii Berry. 



PL XL, fig. 17. 



Viburnum Hollickii Berry, Am. Nat., vol. 37, 1903, p. 683, figs. 5, 6, p. 678. 



Grewiopsis viburnifolia Ward, Hollick, Bull. Torrey Bot. Club, vol. 21, 1894, p. 59, pi. 174, fig. 8. 



This specimen is almost certainly a small form of this species and not a Grew- 

 iopsis, as originally identified by me. Its similarity to Viburnum was noted by me (loc. 

 cit.) ; but at that time there was no described species in the genus with which it could 

 be satisfactorily compared, and I did not think it advisable to base the description* of 

 a new species upon such a fragmentary specimen. 



Locality: Lloyd Neck, Long Island. Collected by Arthur Hollick. Specimen 

 in Mus. New York Bot. Gard. 



Viburnum integrifolium Newberry. 



Pi. XL, fig. l. 



Viburnum integrifolium Newb., Mon. U. S. Geol. Survey, vol. 26 (Fl. Amboy Clays), 1895 (1896), p. 125, pi. 41, 

 fig. 1; Hollick, Bull. Torrey Bot. Club, vol. 21, 1894, p. 54, pi. 177, fig. 7; Fifty-fifth Ann. Rept. New York 

 State Mus., 1901 (1903), p. r51. 



I am of the opinion that Newberry's reference of this species to the genus Vibur- 

 num was questionable, but there is no doubt that our specimen is identical with his V. 

 integrifolium (loc. cit.) from the Cretaceous of New Jersey , and I have retained the 

 name in full in order to avoid any possible confusion which might result in placing 

 it under some other genus. 



Locality: Glen Cove, Long Island. Collected by Arthur Hollick. Specimen in 

 Mus. New York Bot. Gard. 



a Apocynophyllum ozningense Heer, Fl. Tert. Helv., vol. 3, 1859, p. 21, pi. 104, fig. 4; Acerates veterana Heer, ibid., p. 20, 

 pi. 104, fig. 5, etc 



