7(3 MESOZOIC FLOKAS OF UMTKI) STATKS. 



Phillip.s" fiives a fifiviic, witli no ck'sniplion, of a singular plant 

 that he calls Splicnopteris Jncjleri!' This, in f,^cncral aspect, agrees so 

 well with one found in Iwo specimens, one each at localities Xos. 12 and 

 7. that I think they belong to the same species. The Oregon plant 

 has apparently no foliage, hut is composed of a thread-like stem, which 

 was prol)ahlv succulent, as no vascular tissue shows in it. This rachis 

 branches in an irregular straggling manner, widely diverging after each 

 branching. It bears, irregularly placed, short branches, or contracted 

 pinnules, that sometimes are forked and sometimes single. Their 

 summits are expanded into elliptical forms, so that the branch is club- 

 like in shape. Xo nerves are visible. Each expanded tip contains a 

 rounded Iwdy, depressed in the center, that looks much like a sorus. 

 The preservation is not sufhcient to show its true nature, but, if it is a 

 sorus, it probably had an indusium. This plant much resembles Schenk's 

 Acrocarpus cuneahis,' from the Rhetic, but the segments are much 

 smaller than those of that plant. 



PI. XII, Figs. 4 and 7 give different fronds; the latter is a small 

 fragment, but more distinct. Fig. 5 gives an enlargement of a portion 

 of Fig. 4, and Fig. 6 a pinnule still more enlarged. Fig. 8 shows a por- 

 tion of Fig. 7 much enlarged. 



Genus ADIANTITES Goppert. 



Adiamites Nympharum Heer? 



PI. XII, Figs. 9-11. 



1876. Adiant'des Nympharum Ileer: Fl. Foss. Arct., Vol. IV, Pt. II (Jura-Fl. 

 Ostsibiriens) , p. 93, pi. xvii, fig.s. 5, 5b. 



Very imperfect specimens were obtained, one each from localities 

 Nos. 2, 7, and 19, of a plant that resembles Heer's Adiantites Nynipha- 

 rum. The pinnules are always too much mutilated to show their true 

 form and onlv small bits of ultimate pinnse were obtained. All that 



" Geology of Yorkshire, 3d ed., p. 218, lign. 40. 



'' Pmfpssiir Fontaine, bpforo receiving the text of Mr. Seward's .lurnssic Flora of tlie Yorl^sliire Coast, 

 wa-s inclined to identify tlie Oregon plant with Hi>henoplfnK Jugkri Ett. on the strength of its resemblance 

 to Phillips'.s ligure, ImtJn view of tlie fact that Mr. Seward says (p. 1.3:? ) that this ligiire "does not do justice 

 to the original," and also because .Mr. Seward refers all the plants called SiAniopleris J wjleri Ett. to Rufonlia 

 Gapperti, it was decided that our plant must belong to that species. — L. F. \V . 



<■ Foss. Flor. der Oren/.schichten. pp. 134, 13.5, pi. xx, figs. 9-12. 



