11) t 



LOWER EOCENE FLORAS OF SOUTHEASTERN XOKTII AMERICA. 



in si/.o and outline, has identicjil vonatidu, ami 

 (lill'i'i-s nioroly in a more cunoate biij>e and 

 slightly loss ]ir()niinent teeth. The niateri;xl 

 is outircly insiillifient for certain identifieation 

 or j)roper diagnosis, and it is therefore referred 

 tentatively to tliis species, with wliich, in so 

 far as the materiixls in hand go, it is practi- 

 cally identic! J. 



Occurrence. — Grenada formation, Grenada, 

 Grenada County, Miss, (collected by E. N. 

 Lowe and E. W. Berry). 



Collection. — U. S. National Museum. 



Family MORACEai. 

 Genus ARTOCARPOIDES Saporta. 

 Artocaepoides wilcoxensis Berry, n. sp. 

 Plate CIX, figure 5. 



Description. — Leaves of medium size for this 

 tribe, eUiptical in general outUne, widest in the 

 midcUe and about eriually pointed at the apex 

 and base. The base is sliglitly incurA-ed, how- 

 ever, and decurrent. Margins entire. Tex- 

 ture coriaceous. Length about 1.3 centimeters. 

 Maximum width about 6.3 centimetei-s. Peti- 

 ole short and very stout. Midrib stout and 

 straight, very prominent on tlie lower surface 

 of the leaf. Secondaries methumly stout but 

 mostly immersed in the leaf substance; they 

 diverge from the midrib at very irregidar inter- 

 vals at angles of about .50°, pureue a prevail- 

 ingly straight ascending course, and become 

 much attenuated distad, where they are 

 camptodrome a considerable distance from the 

 margins. Tertiaries thin, variable; branches 

 from the secondaries and from the midrib 

 together form an ojjen, prevuihngly quadrangu- 

 lar network. 



This species is not abundant in the Wilcox 

 and is confined to the Puryear locality. It was 

 a handsome form with symmetric rigid coria- 

 ceous smooth leaves. With regard to its 

 botanic afhnity it appears to be congeneric 

 with the species of Artocarpoides described by 

 Saporta from the Paleocene of Sezanne, France. 

 Schenk ' considers these to be forms of Juglan- 

 dites, but I fail to see any foimdation for his 

 contention. It is possible that the Wilcox leaf 

 is not congeneric with the Sezamie leaves, but 

 should be referred to the tropical American 

 genus Brosimum Swartz (which includes about 



'Schenk, A., Palaeophytologic, piJ. 451, 477, 1S90. 



S existing sjx'cics in tropical .Vinerica, ranging 

 from Mexico and the West Indies to Brazil), 

 especially as it differs in certain particulars 

 from the modern entire-leafed species of Arlo- 

 car])us. It is certainly not related to Juglans 

 but is as certainly a member of the Moracea?, 

 recalling in everything except its venation 

 numerous forms that have been referred to 

 Ficus. 



Occurrence. — Lagrange formation (in lieds of 

 Wilcox age), Puryear, H(>nry County, Tenn. 

 (collected by E. W. Berry). 



Collection. — U. S. National Museum. 



Genus ARTOCARPUS Forster. 



Artocarpus lessigiana (Lesquereux) Knowl- 

 ton. 



Plate XXVI, fisure 1. 



Myricaf Lessigiana. Lesquereux, U. S. Geol. and Geog. 

 Survey Terr. Bull., vol. 1, p. 386, 1875 (187(i). 

 Lesquereux L^. S. Geol. and Geog. Sur\'ey Terr. Ann. 

 Kept, for 1874, p. 312, 1876. 

 Myrica? Lessigii. Lesquereux (not Lesquereux, 1888), 



The Tertiary flora, p. 136, pi. 64, fig. 1, 1878. 

 Artocarpus lessigiana. Knowlton, Science, vol. 21, p. 24, 

 1892. 

 Knowlton, U. S. Geol. Survey Bull. 152, p. 42, 1898. 

 Ilollick, in Harris, G. D., and Veatch, A. C, A pre- 

 liminary report on the geology of Louisiana, p. 281, 

 pi. 37, 1899. 



Description. — Leaves large, 30 centimeters in 

 maximum length by 20 centimeters in maxi- 

 mum width; oblong in general outhne; pin- 

 nately and more or less deeply four to eight 

 lobed. The lobes differ in form, are oblong- 

 lanceolate in outline, and are separated by 

 narrow to broad, rounded sinuses. The lower 

 lobes are directly lateral, and they become more 

 ascending distad, being directed upward in the 

 apical part of the leaf. Midrib very stout. 

 Lateral primaries stout but much less prom- 

 inent than the midrib, subopposite to alternate, 

 branching from the midrib at a wide angle in 

 the lower part of the leaf and at more acute 

 angles toward the apex, on(> traversing each 

 lobe and terminating in its acute tip. Sec- 

 ondaries thin, camptodrome, one or more inter- 

 calated between successive secondaries and 

 generally sev(>ral from the lat(>ral primaries. 

 As a rule one runs directly to the sinus and 

 joins a vein tluit constitutes a marginal hem to 

 the sinus. In some specimens the secondary 

 misses the sinus and continues as a margin of 



