PLATE L. 



Sphenophyllum (Asterophyllites!) pasciculatum Lx. sp. 



(Page 183.) 



Fig. 1. One of the specimens determined by Professor Lesquereus as JsterophyllHes fuscictdatus Lx. 

 Lacoe collection, U. S. Nat. Mus., 8296. 

 111. Photographic enlargement of the npper portion of the same, showing hifnrcate leaves. X2. 

 Ic. Detail of a portion of the same to show the nervation. x2. 



2. Another specimen labeled as Asteropht/Uites fasciculatus by Professor Lesrjuereus. The bifur- 



cate form of the leaves appears in the npper part, though it does not show well in the 

 photograph. Lacoe collection, U. S. Nat. Mns., 8295. 



3. Branches of the same species. Most of the leaves are seen in profile, but several in the front 



of the verticils in the upper part of the specimen show the forked form. U. S.Nat. Mus., 

 5639. 



4. Examples of small branoblcts. IT. S. Nat. Mns., 5637. 



Sphenophyllum ma jus Bronu? 



(Page 180.) 



Fig. 5. Two verticils, showing form of leaves. U. S. Nat. Mns., 5679. 



6A. Leaves on tlie upper part of the rock, showing margin. Lacoe collection, U. S. Nat. Mus., 

 8711. ■ 



Sphenophyllum Lescurianum I). W. 



(Page 182.) 



Fig. 6B. Branches, showing verticils of peculiarly bidentate leaves. This example was labeled and 

 recorded by Professor Lesquereux as Sphenophyllum ohlonijifolhim Germ. Lacoe c(dlection, 

 U. S. Nat. Mns., 8711. 

 6ft. Enlarged detail of leaves. x2. 



The entire rock is photographically enlarged in PI. LL 



410 



