258 



LOWER EOCKXE FLORAS OF SOUTHEASTEEN NORTH AMERICA. 



recordcil ii fossil form i'l'om tln) Yprosian of 

 Alum Bay, lCii<;lau(l. 



Occuirencf. — Lagraiijro formotion (in beds of 

 Wilcox ago), Piirvdar, Houry t'oiinty, Tenn. 

 (collected by E. ^V. Berry). 



Collection. — U. S. Xational Museum. 



Family EUPHOKBIACEffi. 



Genus DRYPETES Vahl. 



Drypetes prekeyensis Berry, n. sp. 



Plate LVIII, figure 4. 



Description. — Leaves eUiptical in general 

 outline, the ape.x and base broadly ouncate 

 or rounded. Length about 6 to 7 centi- 

 meters. Maximum width, midway between 

 the apex and the base, about 3 centime- 

 ters. Margins entire. Textm-e coriaceous. 

 Petiole short and stout. Midrib stout, flexu- 

 ous, prominent on the lower suiface of the leaf. 

 Secondaries rather stout, about 10 suboppo- 

 site pairs; they diverge from the midrib at 

 angles of 60° to 80°, and ciu-ve uregidaily up- 

 ward, forming camptodrome arches in the 

 marginal icgion. Tertiaries thin but distinct, 

 foimmg marguial arches and internally large 

 three, foui', or five sided mesh?s. 



The present species is named from its icsem- 

 blance to Drypetes heyensis Urban {Drypetes 

 diversifolia Iviiig and Uiban), a stout tree of 

 dry, sandy sods, ranging from the extreme 

 southern Florida Keys thi'ough the West 

 Indies. Th(^ genus Drypetes, which contains 

 2 species in the Wilcox flora, is confined to 

 tropical America in the existmg flora and 

 comprises about a dozen species that range 

 from southern Florida through the West In- 

 dies to northern BrazU. 



The present species is readily distinguished 

 from the lanceolate-leafed Drypetes prelateri- 

 jlora Berry of the Wilcox flora. 



Occurrence. — Lagrange formation (in beds of 

 Wilcox age), Puiyear, Hemy County, Term. 

 (coUected by E. W. Beny). 



Collection. — U. S. National Museum. 



Drypetes prelateriflora Berry, n. sp. 

 riato LVIII, figures. 



Description. — Leaves ovate-lanceolate in 

 general outline, tapering <'(|U!dly })o)h ])roxi- 

 mad and distad, the apex acuminate and the 

 base shaiply decuiTent. Length about 6.5 



oentimetere. Maximmn widtli, midway be- 

 tween the apex and the base, about 2.1 

 centhneters. Margins entu'e, lounded, slightly 

 imdulate. Te.xture coriaceous. Petiole sliort, 

 stout, and eui-ved, about 3 millimeters m 

 length, Midrib stout, more or less curved, 

 prominent on th(> lower sm-faoe of the leaf, bc- 

 ct)niing attenuated in the slender tip. Sec- 

 ondaries rather stout, about seven or eight sub- 

 o]i]iosite to alternate arcuate pans, divergmg 

 from the mich-ib at angles of 50° to 60°, form- 

 uig camptodrome aiches in the marginal 

 region. Tertiaries thm. 



This species is named from its resemblance 

 to the leaves of the Guiana pliun, Drypetes 

 lateriflora (Swartz) L^rban, a small tree of the 

 Floiida Keys, the Bahamas, and several of the 

 iVntilles. It is relatively much nai-rower and 

 is otheiwise readily distmguished from Dry- 

 petes prelceyensis Berry, a related form in the 

 Wilcox floia. 



Occurrence. — HoUy Spruigs sand, HoUy 

 Spihigs, Marsludl Comity, Miss, (collected by 

 E.W. Berry). 



Collection. — U. S. National Musemn. 



Genus CROTONOPHYLLUM Velenovsky. 



Crotonophyllum eocenicum Berry, n. sp. 

 PhTte LVIII, figure 2. 



Description. — Leaves of medium size, oblong- 

 ovate in general outline, the tip narrowed and 

 acuminate, and the base broadly rounded. 

 Length about 12 centimeters. Maximum 

 width, in the basal part of the leaf, about 4 

 centimeters. Margins entire below, but above 

 the entire portion they show irregularly spaced, 

 rather distant, and variably shaped and di- 

 rected dentate teeth, some prominent, others 

 very faint. Texture coriaceous. Petiole stout, 

 not preserved for its entire length. Midrib 

 stout, curved, prominent on the lower surface 

 of tlie leaf. Secondaries thin, numerous, sub- 

 parallel, about 18 pairs, divergmg from the 

 midrib at angles ranging from 60° in tlie u]i]ier 

 part of the leaf to 80° in the lower part ; they 

 are ])ut slightly curved and are camptodrome 

 close to the margins. T(M-tiarv venation obso- 

 lete. 



Tliis species is entirely unlike previously 

 described fossil forms, although it resembles 

 somewhat closely some of tbe leaves described 

 by Ettingsh.ausen from Sagor in Carniola as 



