DESCRIPTIONS OF SPECIES. 71 



Liriodendropsis angustifolia Newberry. 



PL XXVI, figs, la, 2-5. 



Liriodendropsis angustifolia Newb., Mon. U. S. Geol. Survey, vol. 26 (Fl. Amboy Clays), 1895 (1896), p. 84, pi. 



53, fig. 8; Hollick, Bull. Geol. Soc. Am., vol. 7, 1895, p. 13. 

 Liriodendron simplex Newb. in part, Bull. Torrey Bot. Club, vol. 14, 1887, p. 6, pi. 62, fig. 4. 



This species may be regarded as occupying one extreme of the series of which 

 Liriodendropsis spectabilis represents the other, with L. simplex, L. retusa, and L. 

 constricta as intermediate forms. Newberry's type figure is reproduced on PI. 

 XXVI, fig. 4. 



It may appear to be just as difficult to draw the line between this species and 

 some of those included under L. constricta as between any two other forms, but in 

 maintaining them as distinct I believe that I am following the course which would 

 have been pursued by Doctor Newberry if he had had the material in hand when 

 he decided to recognize the species simplex and angustifolia. 



Locality: Gay Head, Marthas Vineyard, PL XXVI, figs, la, 3. Collected by 

 David White. Specimens in U. S. Nat. Mus. 



Glen Cove, Long Island, PL XXVI, fig. 2. Collected by David White. 

 Specimen in U. S. Nat. Mus. 



Woodbridge, N. J., PL XXVI, figs. 4, 5. Specimens in Mus. New York Bot. 

 Gard. 



Liriodendropsis constricta (Ward var.). 

 PI. XXII, fig. 7: PL XXVI, figs. 6-15; PL XL, fig. 15. 



Liriodendropsis simplex constricta Ward, Sixteenth Ann. Rept. U. S. Geol. Survey, pt. 1, 1894-95 (1896), 



p. 540, pi. 107, fig. 8. 

 Liriodendron simplex Newb., Hollick, Trans. New York Acad. Sci., vol. 12, 1893, p. 235, pi. 7, fig. 3. 



Leaves entire, varying between 4 and 9 centimeters in length by 2 to 3.5 centimeters in maximum width, 

 ovate-lanceolate in outline, wedge-shaped at the base, abruptly constricted or narrowed and almost linear in 

 the upper part, with an emarginate or truncate apex; secondary and tertiary nervation almost indistinguish- 

 able one from the other, forming a fine network of elongated and polygonal areolae. 



I have included in this species the specimens in which the upper part is nar- 

 rowed or abruptly constricted. The leaf which I regard as the type of the species 

 is shown on PI. XXVI, fig. 15, while figs. 7-11 are indicative of relationship with 

 L. angustifolia and L. simplex. 



With considerable hesitation I have also decided to include the specimen rep- 

 resented on PL XL by fig. 15, which may be merely an abnormal form of the species, 

 and that represented on PL XXII by fig. 7, which is a form more or less suggestive 

 of L. spectabilis. 



Locality: Gay Head, Marthas Vineyard, PL XXII, fig. 7; PL XXVI, figs. 

 6-14; PL XL, fig. 15. Collected by David White. Specimens in U. S. Nat. Mus. 



Glen Cove, Long Island, PL XXVI, fig. 15. Collected by Arthur Hollick. 

 Specimen in Mus. New York Bot. Gard. 



