MYKTALKS. 



317 



linear-l(>afe(l Myrcia hentonensis Berry. It is 

 very close to a number of existing species of 

 Myrcia and may be compared with the leaves of 

 Myrcid rostrafa De Candoile. With the excep- 

 tion of the produced acumen of the modern 

 species the fossil is closely comparable with 

 the troi)ical AmericaiT Myrcia tcnbliithdcni 

 Popp, figures of tlu> leaves of which arc given 

 by Ettingshausen.' It also greatly resembles 

 a form descril)ed by Engelhardt- as Myrcia 

 antediluviana from the Tertiary of Ecuador. 



Occurrence. — Lagrange formation (in beds of 

 Wilcox age), Puryear, Henry County, Tc^nn. 

 (coUected'by E. W" Berry). 



Collection. — U. S. National Museum. 



Myhcia bentonensis Berry. 



Plate X(.', figures 7-9. 



Quercus rctracta. Lesquereux (in part), Am. Philos. Soc. 

 Trans., vol. 13, p. 41G, pi. KS, fig. 4 (not fig. 5), ISUiJ. 

 Knowlton, in Harris, G. D., Arkansas Geol. Siu-vcy 

 Ana. Repl. for 1892, vol. 2, p. 5(), 1894. 



Description. — Leaves Imear-lanceolate in out- 

 line, the apex blimtly pomtcd or romidcd, and 

 the base narrowly pointed. Length ranges 

 from 7 to 12 centimeters. Ma.xunum width, 

 hi the middle part of the leaf, ranges from 0.7 

 centmieter to 1.5 centimeters. Margins en- 

 tire. Texture coriaceous. Petiole short or 

 wantmg. Midrib stout. Secondaries thin, nu- 

 merous, regularly spaced at intervals of about 

 1.5 miUmieters, diverging from the midrib at 

 angles of 60° to 70°, straight in their course, 

 their tips joined by a thin aerodrome vem close 

 to and parallel with the margm. 



This species was based, m the first instance, 

 on a single specimen, collected many years ago 

 at Benton, iVi-k., by R. E. Call for the Ai-kan- 

 sas Geological Survey. It was subsequently 

 discovered at several localities along the east- 

 ern shor<' of the Mississippi embajmient in Mis- 

 sissippi and Tennessee and survives the Wilcox, 

 being ])i'esent in the St. Maurice formation 

 (lower fonnation (>f Claiborne group) of Cleve- 

 land County, Ark. 



It suggests fossil forms that have Ixien re- 

 ferred to the gt^nera p]ucalyptus, Nerium, Ficus, 

 and ApocynophyUum, but appears to be most 

 like the genus Myrcia, which has so many ex- 



' Et.tingshau.seii, C. von, Die Blattskelete der Dicotyledonen, j). 195, 

 figs. 200, 2in, ISCil. 



2 Engclhardt, Hermann, Senckonbergische naturf. Gesoll. Abh., vol. 

 19, p. 17, pi. 15, fig. 15, 1895. 



ist ing species in the American Tropics. It may 

 be compared witlx certain existmg species of 

 Myrcia. Among fossil forms it is similar to 

 Nerium. parisiense Saporta,-' from the midcUe 

 EoceiK! (Lutetian) of the Paris Basin. It is 

 also much like the M.\Tcia from the Green River 

 formation, whicli Newberry ' identified as Sali.t 

 anyusta and which may bi; a descendant of thi.-i' 

 southern Eocene form. 



Occurrence- — Grenada formation, Grenada, 

 (irenaila County, Miss, (collected by E. N. fjowe 

 and E. W. BeiTy). Ackerman formation. Hur- 

 leys, Benton Comity (formerly part of Tippnli 

 County), Miss, (collected by E. W. HUgard). 

 Holly Springs sand, Oxford ravine, Lafayette 

 Comity (common). Miss, (collected by E. W. 

 Berry). Wdco.x group, Benton, Saline County, 

 Ai-k. (collected by R. E. Call). Lagrange for- 

 mation (in beds of Wilcox age), Puryear, Henry 

 County (collected by E. W. Berry), and V^ miles 

 west of Grand Jimction, in Fayette County, 

 Tenn. (collected by L. C. Johnson). 



Collections. — LT. S. National Museum. 



Genus EUGENIA Linne. 



Eugenia densinervia (Lesquereux). 



Salix (?) daissinervis. Lesquereux, \m. Joiu-. Sci., 2d ser., 



vol. 27, p. 364, 18.59. 

 Le.squereux, in Safford, J. M., Geology of Tennessee, 



p. 427, pi. K, fig. 9, 1869. 

 Louglii'idge, Report on the geological and economic 



features of the Jackson's pui'chase region, p. 197, 



fig. 9, 1888. 



Description. — Leaves narrowly lanceolate in 

 general outline, slightly falcate, gradually nar- 

 rowed from the middle to the acuminate apex 

 and the equally pomted base. Length about 

 5.5 centimeters. Maximum width, midway be- 

 tween the apex and base, about 4.5 millimeters. 

 Margms entu-e. Texture subcoriaceous. Peti- 

 ole missing. Midrib stout, curved, and promi- 

 nent. Secondaries very thin, numerous, closelv 

 spa(HHl, diverging from the midrib at angles of 

 about 35°, connected by oblique nerviUes of the 

 sanui caliber as the secondaries, giving them the; 

 appearance of inosculating. 



This species is based on the form described 

 by Lesquereux as a Salix, although he quei'ied 

 this generic determination and says that when 



3 Saporta, G. de, Le monde des plantes avant I'apparition de I'homme, 

 p. 227, fig. 46, 1879. 



'Newberry, J. S., U. S. Geol. Survey Mon. 35, p. 54, pi. 65, Hg. 2, 1898, 

 Ilollick in a footnote on p, 55 calls attention to the Eucalyptus-like 

 venation of tliLs form. 



