110 MESOZOIC KLOIJAS OF rMTKl) STATES. 



reseml)les tlie loaHpts given by Phillips as PtcrophyUuii) rigiduni." Iml its 

 leaflets are not narrowed so much toward their tips. They are also like 

 Heer's Podozawites obtiifi if alius,'' so named on the plate, l)ut desr-rilied as 

 Baicra lougifolia Pomel spec. {Dicropteris longif alius Pom.). The plant is 

 prol)al)ly nearer to Xathorst's Pteraphyllum f cteniforme,' from the Rhetic 

 of Sweden, and possibly may be identical with it. 



PI. XXIV, Fig. 1 1 gives portions of two leaflets in a position to Indi- 

 cate that they were attached to the same midnerve. One of them that is 

 almost entire shows a length of 6 cm. Fig. 12 shows parts of several 

 thick leaflets that were probably attached to the same axis. These show 

 the greater strength of the central nerves. Fig. 13 shows the tips of 

 several leaflets corresponding to those given in Fig. 12. Fig. 14 repre- 

 sents a nearly entire leaflet in which the l)ase seems to be preserved. 

 Fig. 15 shows this enlarged. Fig. 16 gives a nearly entire leaflet of the 

 smallest kind, with the base apparently preserved. 



The plant is always rare, but is most common at locality Xo. 7. It 

 occurs also at localities Xos. 1, 18, and 19. 



PoDOZAMiTES LANCEOLATUS (Lindlev & Hutton) Friedricli Braiin iion Emmons. 



PL XXIV, Fig.s. 17-20. 



1836. Zamia hncfolata L. & H. : Fo.ss. Fl. Gt. Brit., Vol. Ill, p. 121, pi. cxciv. 

 1840. Zamites lanceolatus (L. & H.) Fr. Br.: Verzeichii. Kreis-Nat.-Samml. z. Bay- 



reuth, p. 100. 

 1843. Podozamites lanceolatus (L. & H.) Fr. Br. (non Emm.) in Munster: Beitr. z. 



Petrefacten-Kunde, Vol. II, Pt. VI, p. 33. 

 1847. Zamites distans longifolia Fr. Br.: Flora, Vol. XXX, p. 85 (nomen). 

 1867. Zamites distans longifolia Fr. Br. Schcnk: Foss. Fl. d. Grenzsch., p. 162, 



pi. xxxvii, fig. 1. 

 1876. Podozamites lanceolatus genuinus Heer: Fl. Fo.ss. An;!., Vol. IV, Pt. II (Jura- 



Fl. Ostsibiriens) , p. 108, pi. xxvi, fig. 10.^' 



There are in the (Jregon Jurassic flora a number of leaflets and frag- 

 ments of leaflets that agree with some of the forms united in the species 



" Geology of Yorkshire, 3d ed., p. 228, lign. .57. 



'' Fl. Foss. Arcl., Vol. IV, Pt. I, pi. viii, fig. 6 (cf., p. 39). 



<■ Flor. vid. Bjuf, Hft. 11, p. 69, pi. xiv, fig. 1. 



'' Ileer has caused much confusion by giving this combination to the type form of Lindlev and Hutton, 

 especially us Schenk applied the name Zamites dislan-i genuma to a closely related form, and the names (hstans 

 and IdncfolaliiK are constantly interchanged; but Heer's Podozamites lanceolatus f/eniiinus is Friedricli Braun's 

 Zamites distanji lomjifolia, accepted by Schenk, and both, according to Heer, are the Zinnia lanrtolata t)! Lindley 

 and Hutton.— L. F. W. 



