FLORA OF THE WOODBIXE SAXD AT ARTIirRS BLUFF, TKX. 



1G3 



Salix drieta Lesquereux. 



Salix dfleta Lcsqucroux, I'. S. Gi-ol. Survi-y Mou. 17, p. 

 •in. pi. 3, fig. 8, 1R91 [1892]. 



Leaves ovate-liinceolate luid .-^uhfiilcate, 

 widest below the middle and taperijig <;radii- 

 ally upward to the bluntly pointeil tip lUid 

 downward to the cuneate inequilateral base. 

 Marjjins entire. Texture subcoriaceous. 

 Length about S.5 centimeters, maximum width 

 about 2.7 centimeters. Midrib stout imd promi- 

 nent. Secondaries numerous, diverging from 

 the midrib at jmgles of about 50°, subparallel, 

 camptotlrome. Areolation quadnuigular. 



This species was described origmally by 

 Lesquereux from Pipe Creek, ("loud County, 

 Kajis.. luid so far as known is confined to the 

 Dakota sandstone and the Woodbine sand. 

 Its relationship to the genus Salix is extremely 

 problematic and, in my judgment, is far from 

 dem()nstrated. The leaf has the appearance 

 of a leaflet of some member of the iSapindaceae, 

 but the amount of material available for study 

 is insufficient to warrant final conclusions. 



Genus POPULTJS Lmn€. 

 Populus harkeriana Lesquereux. 



Populus harkeriana Lesquereux, L'. S. Geol. Survey Mon. 



17, p. 14, pi. 4G, fig. 4, 1891 [1892]. 

 Ilollick, New York Acad. Sci. Annals, vol. 2, p. 419, 



pi. 3C, fig. 8, 1898; U. S. Geol. Survey Mon. 50, 



p. 49, pi. 7, fig. 31, 1906. 

 Berry. Torrey Bot. Club Bull., vol. 39, p. 394, 1912. 



This species was described by Lesquereux 

 from material collected in the Dakota sand- 

 stone at Fort Harker, Kans., and was subse- 

 quently recorded by Ilollick from the Creta- 

 ceous material (Raritan or Magothy) in the 

 terminal moraine near Tottenville, Staten Is- 

 land. The collection from Arthurs Bluff, Tex., 

 contains a single specimen and its counterpart, 

 showing half of a large typical leaf of this 

 species. There is also an undeterminable 

 species of the Populus type in the collection. 



Order UBTICALES. 



Family MOEACEAE. 



Genus FICTJS Linne. 



Ficus daphnogenoides (Heer) Berry. 



Plate XXXIX, figure 1. 



Protroides daphnogenoides Heer, Phyllites cr^tac^ea du 

 Nebraska, p. 17, pi. 4, figs. 9, 10, 1866. 

 Lesquereux, The Cretaceous flora, p. 85, pi. 15, figs. 

 1.2,1874; ThenoraoftheDakotagroup, p. 90, 1892. 



Ilollick, New York Acad. Sci. Traiw. vol. 11. p. 98, 

 pi. 3, figs. 1, 2, 1892; vol. 12. p. 30. p|. 2, figs. 4, 9, 

 13, 1893; Torny Hot. Club Hull., vol. 21. p. .52. pi. 

 177, fig. 1, 1S94; The Cretaceous flora of 8<iuthem 

 New York and New Englanil, p. 59. pi. 12. figs. 1-5, 

 1906. 

 Smith, On the geology of the Coastal Plain of Ala- 

 bama, p. 348, 1894 (determined by Wardi. 

 Newberry, The flora of the .VmlKiy clays, p. 72, |)l. 17, 

 figs. 8. 9; pi. 32, figs. 11, 13, 14; pi. 33, fig. 3; j.l. 41, 

 fig. 15, 1896. 

 Berry, New York Bot. Garden Hull., vol. 3, p. 74, 

 pi. 51, figs. 6-9, 1903. 



Ficus daphnoijcnoidis I Ilecrl Berry, Torrey Bot. Cluli Bull., 

 vol. 32, p. 327, pi. 21, 1905; vol. 33, p. 173, pi. 7, 

 fig. 5, 1906; vol. 34, p. 194, pi. 11, figs. 10, 11. 1907; 

 New Jersey Geol. Survey Bull. 3, p. 122, pi. 12, 

 fig. 4, 1911; Torrey Bot. Club Bull., vol. 39, p. 39-1, 

 1912; vol. 44, p. 177, 1917; Maryland Geol. Survey, 

 Upper Cretaceous, p. 818, pi. 58, fig. 3, 1916; U. S. 

 Geol. Siu-vey Prof. Paper 112, p. 80, pi. 13, figs. 6, 7, 

 1919. 



Picus proleoides Lesquereux , The flora of the Dakota group, 

 p. 77, pi. 12, fig. 2, 1892. 



Eucalijplusf atlenuala Newberry, The flora of the .Xmboy 

 clays, pi. 16, fig. 5 (not figs. 2. 3). 1890. 



Heer's description, published in 1866, is as 

 follows: 



Les feuilles sont coriaces, i la base attenui^es, entieres; 

 la nervure m^diane est forte; elle porte deux nerviu-ee 

 eecondaires faibles, aerodromes, qui sont presque jjaral- 

 IMes au limbe; mais elles ne sont pas oppos(?ea, fomme 

 chez les Daphnogene et Cinnamomwn. 



This species was described by Heer from 

 very incomplete material found in the Dakota 

 sandstone of Nebraska. His specimens have 

 some long ascending secondaries, but Les- 

 quereux's more complete specimens from the 

 same formation and region show that these 

 secondaries were not aerodrome but campto- 

 drome. The species in this feature and also 

 in other respects differs from Protea and its 

 allies, which are more coriaceous and have the 

 secondaries branching at acute angles and 

 massed toward the generally apetiolate base. 

 It closely resembles a number of different 

 existing species of Ficris from such widely 

 separated localities as Central and South 

 America and Celebes. Especially among the 

 Mexican and Central ^Vmerican forms are very 

 similar leaves seen — for example, Ftcu-'i fasci- 

 culata Watson, Ficus lancifolia Hooker and 

 Amott, Ficus lit/ustrina Kunth and Bouche, 

 and especially Ficus sapida Micjuel, which 

 has much the same outline and consistency, 

 the same prominent midrib, and the same 

 venation. When the fossil forms are placed in 



