31G 



I.OWEK KOCKNE FLORAS OF SOUTHEASTERN KORTU AMERICA. 



be distiiiguishcHl : ciisily soon with majiiiificatioii; 

 anjilos of (liv(M'goiicc of the secoiuluries open, 

 ahout oQ° to 55°. Tertiaries imiiKM'sed in tlie 

 th'u-k leaf substance. 



This coriaceous httlc leaf l)y its size, texture, 

 and especially its venation is referrtl)l(> to tJio 

 genus Myrcia. It is marlcedly difl'erent from 

 the larger lanceohite-aeuniiiuite ]\fi/rci(i vera 

 Berry from the deposits of Wilcox age at Pur- 

 year or from the linear-lanceolate Murcia ben- 

 tonensis Berry from the Wilcox of Arkansas. 

 It somewhat resembles a form from tlie Ter- 

 tiary' of Ecuador d(>scribed by Engellianlt ' 

 as Pterogyne ohlongifoUa. European Tertiary 

 forms of this type are often referretl to the 

 oriental myi-taceous genus Metrosideros R. 

 Browm. 



Occuirence. — Lagrange formation (in beds of 

 Wilcox age), Puryear, Henry County, Temi. 

 (collected by E. W. Berry). 



Collection. — U. S. National Museum. 



Myecia gkenadexsis Berry, n. sp. 

 Plate XCI, figure 8. 



Description. — Leaves small, narrowly elon- 

 gate-lanceolate, somewhat uiequilateral and 

 falcate ui general outline, widest near the mid- 

 dle and gradually narrowing to the equally ex- 

 tended and acuminate apex and base, both of 

 which are somewhat inequilateral. Length 

 about 4 centimeters. Maximum width about 

 4.5 millimeters. Margins strict and entire. 

 Texture coriaceous. No petiole is differenti- 

 ated, as the gradually narrowing margins ex- 

 tend to the point of attaclunoit of the leaf as 

 petiolar wings. Midrib very stout through- 

 out its length, curved, relatively prominent on 

 the lower surface of the leaf, longitudinally 

 striated. Secondaries thin, largely immersed 

 in the substance of the leaf; numerous thin 

 pairs (Uverge from the midrib at angles of 

 about 65° at intei-vals of 1 to 2 millimeters; 

 they ptirsue a nearly straight course to the 

 aerodrome vein which closely parallels each 

 margin. 



This species is readily separable from thc^ 

 other Wilcox species that have hwm refernnl 

 to this genus by its narrow and elongate- 

 lanceolate form and its acuminate apex and 

 base. Among these species it is most simUar 



' EnRclhardt, Hermann, Senckenbergiscbe naturf. Oesell. Abb., vol 

 19, p. 2. pi. 2, figs. 21, 22, 1895. 



to Myrcia vera Berry but dilVcns in its relatively 

 narrower, more elongate form and its narrower 

 more ("xtended base. Its secondaries are Ic^ss 

 numerous than those of the smaller leaves of 

 Myrcia hentonensis Berry and in addition it 

 differs in liaving an acuminate tip instead of 

 an obtuse tip. Among ]ireviously describcitl 

 species in other genera the species under dis- 

 cussion is ahnost identical in size and outline 

 with Eugenia densiiurvla (Lesquereux) Berry, 

 which comes from the upper part of the beds 

 of Wilcox age at Somerville, Tenn. In well- 

 preserved material there is no danger of con- 

 fusing the two, as the venation is very different, 

 Eugenia densinervia having anastomosing veins 

 and lacking the marginal veins. A number of 

 existing species of Myrcia have leaves very 

 simdar to those of this fossil specic^s. 



Occurrence. — Grenada formation, Grenada, 

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

 Lowe and E. W. Berry). 



Collection. — U. S. National Museum. 



Mykcia pitryearensis Berry, n. sp. 

 Plate XCI, figures 1 and 2. 



Description. — Leaves relatively short, ovate 

 in outline, the tip narrowed and acuminate and 

 the base abruptly pointed. Length about 

 4.5 centimeters. Maximum width, at or below 

 the middle, about 1.7 centimeters. Margins 

 entire. Texture subcoriaceous. Petiole stout, 

 tumid proximad, about 4.5 millimeters m 

 length. Midrib stout, promment, curved. Sec- 

 ondaries thin, numerous, subparallel, UKU'e or 

 less immersed in the leaf substance; th(\y di- 

 verge from the midrib at angles of about 65° at 

 mtervals of about 1.5 millimeters, running 

 with but slight or no curvature, some of them 

 forked, ending in a marginal vein which runs 

 along the extreme margin of the li^af . Tertiaries 

 mostly immersed, straight, johiuig the sec- 

 ondaries at very acute angles. 



This characteristic species is s|)aringly repre- 

 sented ui the collections. As far as known the 

 leaves are invariably inequilateral, one side of 

 the lamina being distiiu'tly wider and fidlt^r 

 than the opposite, sitie. Among the other 

 Wilcox species of Myrcia it is somewhat larger 

 and much wider than Myrcia par^nfolia Beriy 

 or Myrcia worthenii (Les(|uereux) Berry. It is 

 much shorter and wider than llu^ lanceolate- 

 leafed Myrcia vera Bcu'i-y ov thc^ elongated 



