ll.oitA OF Tin; WIXIPBIXE SAXD AT AliTlirjiS IlI.rFF, TEX. 



165 



This iiiic largo spinies is very nhmulaiit in tlie 

 Dakota sandstone of Kansas. Ncliraska, ami 

 Minnesota, and Lesqucrcux difTcrentiatcd three 

 varieties, iniegrifolia, subintegrifolia, and gran- 

 did en tata. 



Order RANALES. 



Family MAGNOLIACEAE. 



Genus MAGNOLIA Linnfi. 



Magnolia speciosa Heer. 



Plate XL, figure 6. 



Magnolia speciosa Heer, AUjr. schweiz. Gesoll. Resammt. 



Xafurwiss. Bern Xeue Dcnskchr., Hand 23, p. 20, 



pi. 6, tig. 1; pi. 9, fig. 2; pi. 10, fig. 1, 1809. 

 I.eequereux, The ("retareous and Tertiary floras, \^. 



72, 1S74; The flora of the Dakota group, p. 202, pi. 



60, figs. 3, 4, 1S92. 

 IToIlick, Xew York .\cad. .''ci. Trans., vol. 12, p. 234, 



pi. 7, fig. 4, 1893; Torrey Bot. ("lub Bull., vol. 21, 



p. 60, pi. 178, fig. 5, 1894; Geol. Sor. .Vmerira Hull., 



vol. 7, p. 13, 1895; The Cretaceous flora of soulhorn 



Xew York and New England, p. M, pi. 19, figs. 1—1, 



1900. 

 Knowlton, V. S. Geol. Survey Twenty-first .\nn. 



Kept., pt. 7, p. 318, 1901. 

 Smith, On the geology of the Coastal Plain of Alabama, 



p. 348, 1894. 

 Berry, Torrey Bot. Club Hull., vol. 31, p. 7G, pi. 3, 



fig. 10, 1004; vol, 32, p. 4(1, pi. 2, figs. 4, 5, 190.5; 



XewJerseyGeol. Survey Bull. 3, p. 129, pi. 14, fig. 3, 



1911; Torrey Bot. Club Bull., vol. 39, p. 395, 1912; 



U. S. Geol. Survey Prof. Paper 112, p. 8S, pi. 18, 



figs. 3, 4, 1919. 

 Magnolia auriculata Xewberrj', The flora of the Amboy 



clays, p. 75 (parti, pi. 41, fig. 13; pi. 58, fig. 10, 



1896. 



Heer's description, published in 1869, is as 

 follows : 



M. foliis maximis, coriaceis, o\ato-ellipticis, apice longe 

 attenuatis, valde acuminatis, basi in j)etioluin validum 

 attenuatis, nervo primario cra.sso, ner\is secundariis 

 valde curvatis, camptodromis. 



This species is somewhat variable in size. 

 The American material, which is somewhat 

 smaller than the type material from Moletein, 

 Moravia, ranges in length from 8. .5 to 19 centi- 

 meters and in ma.ximum width from 4 to 7.5 

 centimeters. It is ovate-elliptical, with the 

 apex more or less produced and the base de- 

 current. The midrib and petiole are stout. 

 The secondaries arc well marked, campto- 

 drome; they number seven to nine pairs and 

 are subopposite, branching from the midrib at 



angles of about 1.')° and curving ui)wiinl. Tiie 

 texture is coriaceous. 



This species, which was de.scribeil originally 

 from specimens collected in tlie Cenomanian of 

 Moravia, has a wide range in .\merica. Typical 

 leaves occur in the Dakota sandstime. It is 

 present on Marthas \incyard and Long Island 

 and in the Raritan and Magothy formations of 

 New Jersey. It is present at .Vrthurs Bluff, 

 Tex., and was recorded by Knowlton from the 

 Woodbine at Rhamey Hill, Dcuison, Tex. 



Magnolia lacoeanu Lesquercux. 



Magnolia lacomim T.esquoreux, The flora of the Dakota 

 group, p. 201, pi, (iO, fig. 1, 1892. 



Newl>erry, The flora of the .\mboy clavs, ]i. 73, pi. .">5, 

 figs. 1, 2, lS9(i. 



HoIIick, The Cretaceous flora of southern Xew York 

 and Xew England, p. (15, ])1. 17, fig. 2, 1901). 



Berry, Torrey Hot. Club Hull., vol. 37, p. 23, 1910; 

 New Jersey Geol. Survey Bull. 3, p. 134, pi. 16, 

 fig. 2, 1911; Maryland Geol. Survey, Upper Cre- 

 taceous, I). 832, pi. 70, figs. 1, 2, 1916; U. S. Geol. 

 Survey Prof. Paper 112, p. 91, pi. 17, fig. 9, 1919. 



Leaves broadly oval to almost orbicular, 

 obtuse or abruptly pointed above and rounded 

 to a somewhat cuneate base below, 10 to 12 

 centimeters in length bj^ 8.5 to 9.5 centimeters 

 in maximum width. Midrib stout, somewhat 

 flexuous. Seccmdaries numerous, campto- 

 drome, rather stout, 10 to 12 pairs; they 

 branch from the midrib at acute angles, imme- 

 diately curving outward, forming festoons near 

 the margin, which is somewhat undulate in 

 one specimen that Xcwberrj- referred to this 

 species. 



This species differs from its contemporaries, 

 especially in its nearl\- round outline. Les- 

 quereux finds a resemblance to Magnolia 

 inghfieldi Heer, from Greenland, and it also 

 suggests some of the Arctic forms which have 

 been referred to Magnolia capellinii Heer. 



Although this s[)ocies is reported from points 

 so widely separated as Marthas Vineyard and 

 Kansas, it is nowhere abundant and is usually 

 poorly preserved, suggesting that the leaves 

 were readily macerated. It also occurs in the 

 Magothy formation of New Jersey and Mary- 

 land and the Tuscaloosa formation of Alabama. 

 The tyi'e locality was Ellsworth Count}^ 

 Kans., and the range elsewhere of this species 

 would indicate that this locality was in the 

 true Dakota sandstone. 



