SYSTEMATIC DESCRIPTIONS. 



13 



Bohemia to this genus, describing it us Cccropia 

 heerii,^ which, in so far as comparisons are pos- 

 sible, is very close to the form under discussion. 

 iVnother species has been described by this 

 author from the same horizon, and lie also 

 records- a species of Cccropia from the lower 

 Eocene (Ypresian) of .Vlum Bay, Kngland, which 

 unfortunately was never describcul or iigurcd. 

 This species is represented by fragments both 

 in the Midway (0 of Texas and tlie Holly 

 Springs sand of the Wilcox group of Mississippi. 

 Occurrence. — Midway ( ?) formation, Earle, 

 Bexar County, Tex. (collect cd by Alexander 

 Deussen). 



Collection. — U. S. National Museum. 



Order PLAT AN ALES. 



Family PLATANACEiE. 



Genus PLATANUS LinnO. 



Platanus aceroides latifolia I\Jiowlton. 



Platanus aceroidis latifolia. Knowlton, U. S. Ciool. Survey 

 Prof. Paper iMS.). 



Description. — This variety of the wiilespread 

 Platanus aceroides of the European and Amer- 

 ican Tertiary is similar to the type but is pro- 

 portionately wider and less elongated, and the 

 margin is less prommently toothed, the teeth 

 being numerous, small, and rather l)lunt. It is 

 represented by several incomplete specimens in 

 the Midway ( ?) collection, all of wliich agree 

 admirably with the complete and abundant 

 material from the Raton formation of New 

 Mexico and Colorado, on which Knowlton based 

 this new variety. 



Occurrence. — Midway (?) formation, Earle, 

 Bexar County, Tex. (collected by Ale.xander 

 Deussen). 



Collection. — U. S. National Museum. 

 Order RANALES. 

 Family LATJRACEffi. 

 Genus CINNAMOMUM Blume. 

 CiNNAMOMUM AFFiNE Lesciucreu.x. 

 Plate III, figure 2. 

 Cinnamomum ajjim'. Lesquereu.x, U. S. Gaol, and Geog. 

 Survey Terr. Ann. Kept, for 1869, p. 196; idem for 

 1872, p. 383; idem for 1874, p. 401. 

 Lesquereux, The Tertiary flora, p. 219, pi. 37, figs. 

 1-5, 7, 1878. 



Description. — Leaves ovate-lanceolate in out- 

 line, somewhat variable in form and decidedly 



'Ettingshausen.C.von, Die tossile Flora desTertiiir-Becken.s von Bilin: 

 K. Akad. Wiss. Wien, Math.-Nat. CI., Dcnkschr., vol. 26, pt. 1, p. 82, 

 pi. 27, fig. 7, 1867. 



» Roy. Soc. London Proc, vol. 30, p. 232, 1.S80. 



variable in size. Apex and base acuminate. 

 Primaries three, slightly suprabasilar. Dimen- 

 sions of Texas specimen: Length, 8.5 centi- 

 meters; maximum width, in lower half of leaf, 

 2..") centimeters. 



This species was describcil by Lesquereux 

 from (ioldcn, Colo., and ('arbou, Wyo., and it 

 appears to be not at idl uncommon in the 

 earlier Eocene of the Rocky Mountain province. 

 It ranges in size to a maximum which led Les- 

 ciuen^u.x to suggest its identity with (Mnua- 

 momuni mississippiense of the Wilco.x group. 

 The species is repn^sented in Texas l)y the 

 single fragmentary specimen ligureil, which is 

 identical in every particular with the original 

 specimen collected in the West.'' Cinnamo- 

 mum leaves are notoriously polymorphous, ami 

 the smaller leaves of this species may be com- 

 pared with those of the widespread European 

 species Ciii na in oinuin la nceola t u in , L '. scheuchzeri, 

 and C. polymorphum. 



Occurrence. — Midway (?) formation, Earle, 

 Bexar County, Te.x. (collected by ^Vlexander 

 Deussen). 



Collection. — U. S. National Museum. 



Genus LAURUS Linne. 

 Laurus wauuiana Knowlton. 



LauTiis ocolcoides. Le.squereux (not Massalongo, 1858), 

 The Tertiary flora, p. 215, pi. 36, fig. 10, 1878. 



Laurus Wardiana. Knowlton, U. S. Geol. Survey Bull. 

 152, p. 129, 1898. 



Description. — Leaves of rather large size, 

 elongate-lanceolate in general outline, taper- 

 ing gradually upward to the acuminate tip. 

 Base narrowly cuneate. Length about 17 

 centimeters. Maximum width, in the basal 

 haK of the l(>af, about 3 centimeters. Margins 

 entire, more or less slightly undulate. Texture 

 coriaceous. Petiole short and stout. Midrib 

 stout, prominent on the lower surface of the 

 leaf. Secondaries relatively thin, numerous, 

 evenly spaced, subparallel. They diverge from 

 the midrib at angles of about 5.")° and are rela- 

 tively little curved until the marginal region 

 is reached, where they are camptodrome. 

 Tertiaries ()b.solete. Both secondary and ter- 

 tiary venation is obscured by the fact that my 

 material shows only the upper surface of leaves. 

 Notwithstanding the coriaceous leaf sub- 

 stance, both systems of venatioii may have 

 been well marked on the under side of the leaf, 

 as is so common in modern Lauracese. 



' LKiquereu.x, Leo, The Tertiary flora, pi. 37, fig. 4. 



