FLORA OF TIIK KOOTAMK FOKMATIOX. 308 



to (Mial)lo one to niako out wilhout (loul>l tlie^cMius. Tho larfjost iinpiinl, 

 the one trivcMi in PI. LXXIl, I'iii'. 1"). is a ffa,<i-iii(Mit of an ullinialc hiancli 

 with a number of leaves, only a few of which are well enouiih pivsei'ved 

 to show their shape and dimensions. The twigs seem to have been 

 slendei- and to have had closely placed lea\es, which, in theii- present 

 state of preservation, are in two rows. They ai'e only 2 nun. lonjj; and 

 about half a millimeter wide at their bas(>s, theii' widest poi'tion. They 

 are so closely placed that their bases ovei'lap. In shape they are elongate- 

 ol)long, widening to the bas(> and at the oi)posite end narrowing gradually 

 to an acute tip. Their exact mode of attachment could not be made 

 out. They appear to be decurrent, with the bases of adjacent leaves 

 overlapping. No nerves are visible. Fig. Ki gi\-es a fragment enlarged, 

 showing as much detail as could be maile out. The plant reseinl)les 

 Aniunin'a ohiiis/i'olid Font.," but the leaves are nuich smaller,' i)i'opor- 

 tionallv wider at base, and nuich more acute. It seems to be nearer 

 Lycopodites than any other plant, and I have with doubt placed it in 

 this genus. 



J--"- 



Class GYMNOSPEIOLE. 

 Order CYCADALES. 



Family CYCADACE.E. 

 Genus NILSONIA Br(>n<;niart. ^ 

 NiLSONiA ScHAUMBURGENSis (Diiuker) Natliorst. 

 Pi. J.XXII, Figs. 17-21. 



1843. PterophyUum sclKiunibun/cuse Dunk.: Progriiiniu. il. hnhoron Gcwerbschule 



inCassel, 1S43-44, p. 6. 

 ISK). PtcrophyUinii nchauinh urge use Diiiik.: Monogr. d. Xorddeutscli. Wciddon- 



bildung, p. 15, pi. i, fig. 7; pi. ii, lig. 1: ])1. vi, ligs. .")-10. 

 1S7(). Anomoza mites schauinhurgensis (Dunk.) Scliimp.: Pal. V('g., Vol. II, ]). 141, 



Atlas, ])1. Ixx, ligs. ■), (). 

 1889. Nilssonia schnuinbunjensis (Duids:.) Natli. ?: Anzeiger d. k. Akad. d. Wiss. in 



Wien, Jahrg. XXVI, No. 24, p. 237. 



« Potonmc- Flora (Monogr. U. S. Geol. Surv., Vol. XV). p. 240, pi. l.xxxv, fljr. 13. 



