FLORA OF THE WOODBINE SAND AT ARTHURS BLUFF, TEX. 



163 



' Salix deleta Lesquereux. 



Salix deleta Lesquereux, U. S. GeoL Survey Mon. 17, p. 

 49, pi. .■?, fig. 8, ]8!)1 [1892]. 



Leaves ovate-lanceolate and suhfalcate, 

 widest below the middle and taperiiig gradu- 

 ally upward to the bluntly pointed tip and 

 dow7iward to the cuneate inequilateral base. 

 Margins entire. Texture subcoriaceous. 

 Length about 8.5 centimeters, maximum width 

 about 2.7 centimeters. Midrib stout and promi- 

 nent. Secondaries numerous, diverging from 

 the midrib at angles of about 50°, subparallel, 

 camptodromc. Areolation quadrangular. 



This species was described origmally by 

 Lesquereux from Pipe Creek, Cloud Coimty, 

 Kans., and so far as Icnown 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 

 demonstrated. The leaf has the appearance 

 of a leaflet of some member of the Sapindaceae, 

 but the amount of material available for study 

 is insufficient to warrant final conclusions. 



Genus POPTJLTTS Linne. 

 Populus harkeriana Lesquereux. 



Populus harkerimia Lesquereux, U. S. GeoL Survey Mon. 



17, p. 44, pL 46, fig. 4, 1891 [1892]. 

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



pi. 36, fig. 8, 1898; U. S. Geol. Siu-vey Mon. 50, 



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

 Berry, Torrey Bot. Chib Bull., vol. 39, p. 394, 1012. 



This species was described by Lesquereux 

 from material collected in the Dakota sand- 

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

 quently recorded by Hollick 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 URTICALES. 



Family MORACEAE. 



Genus FICUS linne. 



Ficus daphnogenoides (Heer) Berry. 



Plate XXXIX, figure 1. 



Proteoides daphnogenoides Heer, Phyllites cr^tac^'es dii 

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

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

 1, 2, 1874; The flora of the Dakota group, p. 90, 1892. 



Hollick, New York Acad. Sci. Trans, vol. 11, p. 98, 

 pi. 3, figs. 1. 2, 1892; vol. 12, p. 36. pi. 2, figs. 4, 9, 

 13, 1893; Torrey Bot. Club Bull., vol. 21, p. 52, pi. 

 177, fig. 1, 1894; The Cretaceous flora of southern 

 New York and New Engl.and, p. b'.K pi. 12. figs. 1-5, 

 1900. 



Smith. On the geology of the ('oastal Plain of Ala- 

 bama, p. 348, 1894 (determined by Ward). 



Newberry, The flora of the Amboy clays, p. 72, pi. 17, 

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

 fig. 15, 1896. 



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

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

 Picns daphnofjenoides (Heer) Berry, Torrey Bot. Club 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. 394, 

 1912; vol. 44, p. 177, 1917; Maryland Geol. Siu-vey, 

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

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

 1919. 

 Ficiis proteoides Lesquereux. The flora of the Dakota gi'oup, 



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

 Eucahjptus? atteniiata Newberry, The flora of the .\mIioy 

 clays, pi. 16, fig. 5 (not figs. 2, 3), 1896. 



Heer's description, published in 1866, is as 

 follows : 



Les feuilles sout foriaces, i la base attenuees, entieres; 

 la nervure mediane est forte; elle porte deux nervures 

 secondaires faibles, aerodromes, qui sont presque paral- 

 leles au limbe; mais elles ne sont pas oppos^es, comme 

 cliez les Daphnogene et Cinnamoinum . 



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- 

 quereiLx'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 cUffers from Protea and its 

 allies, wliich are more coriaceous and have the 

 secondaries branching at acute angles and 

 massed toward the generally apetiolate base. 

 It closely resemliles a number of different 

 existing species of Ficvs from such widely 

 separated localities as Central and South 

 America and Celebes. Especially among the 

 Mexican and Central American forms are very 

 similar leaves seen — for example, Ficus fasci- 

 culata Watson, Ficus laiicifolla Hooker and 

 Arnott, Ficus ligustrina Kunth and Bouche, 

 and especially Ficus sapida Miquel, which 

 has much the same outline and consistency, 

 the same prominent mith'ib, and the same 

 venation. When the fossil forms are placed in 



