THYMELEALES. 



303 



niptly pointed. Lono;th about. 15 ('(Mitiiuoters. 

 Maximum width in tlic middU^ \v.\r\ of the leaf 

 about 5 centimeters. Margins (Mil ire. T<'x- 

 tun^ subcoriaceous. Petiole sliort and neaily 

 straight, about 0.75 centimeter in Iciigtli. 

 Midrib medium sized, nearly straight. Sec- 

 ondaries, six subopposite to alternat(> ])airs, no 

 lateral ]irimaries difTen^ntiated. Secondaries 

 bi-anch from tlie midrii) af acute angles, 45° or 

 less, curve slightly, and ix'couie ])arallel with 

 the margins; they become shorter and more 

 curved in the upjx'r part of the leaf and are 

 unecjually spacinl. Tertiaric^s mostly percur- 

 rent. .\i'eolation quadrangular or polygonal, 

 mostly obsolete. 



This form was recordcul by Hollick in 1S99 

 from Louisiana and identified with the Fort 

 Union species Tetranthera 'prsecursoria , which it 

 somewhat resembles, although it may be readily 

 distinguished by its larger size and broader, less 

 lanceolate form, its less distant secondaries, 

 and shorter petiole. It is not especially close 

 to the other species of Oreodaphne in the Wil- 

 cox flora, but approaches nearest to Oreodaphne 

 furyearensis Berry, from which it differs in its 

 larger size, very much shorter and more slender 

 petiole, more slender midrii), longer and less 

 curved secondaries, which approach much 

 nearer the margms, and in lackmg the extended 

 tip of that species. It seems to bo a rare or 

 possibly an inland element in the Wilcox flora, 

 since only the type material has been collected. 



Occurrence. — Wilcox group, one-fourth mile 

 above Coushatta, Red River Parish, La. (col- 

 lected by G. D. Harris), and 2 miles south of 

 Naborton, De Soto Parish, La. (collected by 

 O. B. Hopkins). 



Collection. — New York Botanical Garden. 



Oreodaphne salinensis Berry, n. sp. 



Plate LXXXII, fiRiircs 1 and 2. 



Description. — Leaves mecHuni sized, lanceo- 

 late in general outline. Length about 10 to 12 

 centimeters. Maximum width 2.2 to 2.75 

 centimeters, about midway between the apex 

 and the base. The margins are entire, full, 

 and rather evenly rounded, the blaile narrow- 

 ing almost equally distad and proximad, 

 slightly fuller ])roximad. The apex is not 

 extended and is obtusely jiointcMl. The base 

 is somewhat more pointed ;ind slightly decur- 

 rent on the short curved petiole. Midrib 



stout and nearly straight, slightl}- flexuous in 

 some specimens, |)rominent on the lower sur- 

 face of t \u' leaf. Secondaries stout and more or 

 less ])rominent; one or two lower pairs sub- 

 opi)(>site, diverging at acut(^ angles and as- 

 cending ])arallel wiili I lie lowei' lateral margins 

 nearly lialfway 1o the apex, wliere they form a 

 series of arches from the ends of percurrent 

 tertiary branches from the outer side of tlie 

 n'sp(>ctively adjacent secondaries. From the 

 middle of tiu^ leaf to the apex six or seven 

 pairs of subopposite to alternate secondaries 

 diverge from the midrib at angles of about 45° 

 below but become more open with each suc- 

 cessive pair; they curve regularly upward and 

 are subparallel and camptodrome. Tertiaries 

 not prominent, percurrent for the most part. 

 Texture coriaceous. 



This is the smaUest and narrowest of tlie 

 WUcox species of Oreodaphne and appears to 

 to be confined to the western shores of the 

 Mississippi end)ayment. It is close to certain 

 stfll existing species, and basal fragments are 

 liable to be confused with Cinnamomum. 



Occurrence. — Wilcox group, Benton, Saline 

 Coimtv, and Malvern, Hot Spring Comity, 

 A:-k. (coUected by R. E. Call). 



Collection. — LT. S. National Museum. 



Oreodaphne mississippiensis Berry, n. sp. 



Plate LXXXII, figures 3-5. 



Lmrus primigcnin Unger. Hollick (in part), in Harris, 

 G. D., and Veatch, A. C, A preliminary report on 

 the geology of Louisiana, p. 284, pi. 41, fig. 1 (not 

 fig. 2), 1899. 



Description. — Leaves large, ovate-lanceolate 

 in outline, as a rule slightly inequilateral, the 

 base narrowly cuneate and the apex abruptly 

 acuminate and commonly falcate. Maximum 

 length about 19 centimeters. Maximum width, 

 which is below the middle, about 4 cen- 

 timeters. Fragments of considerably larger 

 specimens arc associated with the type 

 material, one having a width of 5.25 centi- 

 meters. The lateral margins are fuU and 

 entire but slightly undulate; toward tlie ape.x 

 they approach abruptly to the acuminate tip. 

 Toward the base they are fuU and rounded, 

 curving inward rather abru])tly and then con- 

 tmuing downward to form tlie narrowly cune- 

 ate base. Texture coriaceous but the leaf 

 substance not especially tliick. Midrib very 



