FLORA OF THE CHEYENNE SANDSTONE OF KANSAS. 



209 



records all represent the same species, it was 

 evidently a wdde-ranging type in the earliest 

 stage of the Upper Cretaceous, which spread 

 from the Arctic region southward into North 

 America, Europe, and Asia. There are five 

 specimens in the Cheyenne sandstone that 

 appear to be identical with Heer's Greenland 

 forms, but as they are preserved in a coarse 

 sandstone their detailed characteristics are 

 obliterated. The pinnules are coriaceous, long, 

 and narrow and somewhat resemble what 

 Heer -^ called Oleichenni rigida. 



Although details of frond habit and fructifi- 

 cation are lacking I have ventured to transfer 

 this form from Pecopterift to Gleichenia, as it 

 appears to be congeneric with the numerous 

 Cretaceous forms of that genus. 



It was found in the Cheyenne sandstone on 

 the left bank of the middle branch of Cham- 

 pion (Wildcat) Draw, half a mile south of 

 Belvidere (2229). 



Phylum CYCADOPHYTA. 



Order CYCADEOIDALES. 



Genus CYCADEOIDEA Buckland. 



Cycadeoidea munita Cragin. 



Cycadeoidea munita Crarin, Washburn ('ollege Lab. Nat. 

 Hist. BulL, voL 2, p. 65, 1889. 

 Ward, U. S. Geol. Survey Nineteenth .-Vnn. Kept., 

 pt. 2, p. .541, 1899. 



Hill -'' states that there is some doubt as to 

 the occurrence of this specimen at this horizon. 

 Lester F. Ward, wlio subsequently visited the 

 locality, states that he was satisfied that it 

 could not have come from the Cheyenne sand- 

 stone but may have weathered out from the 

 overlying " Reeder sandstone." The material, 

 which is only a fragment, has never been 

 studied by a competent person, although 

 Ward states that it is surely a fragment of a 

 cycad trunk. 



Whatever its true horizon it is of interest as 

 one of the latest authentic occurrences of tltis 

 type of plant. 



Genus CYCADEOSPEKMUM Saporta. 



Cycadeospermum lineatum Lesquereux. 



Cycadeopsermum. lineatum Lesquereux, U. S. Oeol. Survey 

 Mon. 17, p. 30, pL 1, fig. 14, 1891 [1892]. 



This seed, which was found 10 miles nt)rth- 

 east of Delphos, Kans., was described by 

 Lescjuereux as follows : 



22 Heer, Oswald, Flora tossilis arctica, vol. 1, p. 80, pi. «, fig. 1, 1868. 

 a Hill, R. T., Am. Jour. f3ci., ,3d ser., vol. ol), p. 212, 1,S95. 



Seed oblong-ovate, slightly falcate, rounded at the 

 lower end, short acuminate at the other; testa smooth, 

 transversely lineate, the lines distant, parallel; carena 

 clearly marked longitudinally on both sides, the inner 

 concave, the outer rounded. 



Length 1 to 1.5 centimeters; width about 

 6 millimeters, somewhat compressed. Testa 

 thick, shining, and ligneous. 



Cycadophyte seeds are not so inequilateral, 

 and the present form is probably angiosperm- 

 ous. This genus was proposed for Jurassic 

 forms, of which many have been described. 

 A few have been described from both Lower and 

 LTpper Cretaceous material. The Cheyenne 

 form is certainly identical with Lesquereux's 

 tyrpe. Wliether or not it is congeneric with 

 the other species referred to Cycadeospermum, 

 or whether indeed it represents the seed of a 

 cycadophyte and not an angiosperm, can not 

 be determined. My impression is that it 

 belongs to the latter rather than the former. 



Material identical with Lesquereux's type is 

 found in the Cheyenne sandstone H miles 

 northwest of Belvidere (22 IS) and near Medi- 

 cine Lodge Creek, 2 miles west of Belvidere 

 (2224). 



Phylum CONIFEROPHYTA. 



Order CONIFERALES. 



Family CUPRESSINACEAE. 



Genus SEQUOIA Endllcher. 



Sequoia condita Lesquereux. 



Plate XLVIII, figures 1-11. 



Sequoia condita Lesquereux, XJ. S. Geol. and Geol. Survey 

 Terr. Bull., vol. 1, p. 391, 1875 [1876]; Ann. Kept, 

 for 1874, p. 3.55, pi. 4, figs. 5-7, [1876]; U. S. Geol. 

 Survey Terr. Kept,, vol. 8 (Cretaceous and Tertiary 

 floras), p. 32, pi. 1, figs. .5-7, 1883; in Cook and 

 Smock. Report on clay deposits in New Jersey, p. 

 29, 1878. 



The inextricable confusion that results from 

 the iilentification of detached fragments of conif- 

 erous foliage when they can not be checketl 

 by fruits or in some other way is well illustrated 

 by the forms that are variously referred to 

 Glyptosfrobus gracillvmus Lest^uereux, Sequoia 

 gracUlima Newberry, Widdririgtonites reichii 

 Heer, etc. In volume 6 of the final reports of 

 the United States Geological Survey of the 

 Territories LesquereiLX gave figures of a plant 

 which he had nametl some years earlier Gh/pto- 

 strohus (jracillimus and which he compared with 

 Frenelltes reichit of Ettingshausen. When 



