386 



J. S. DILLER THE JURASSIC FLORA OF OREGON 



"By combiuing the species from the several localities, we get the following 

 list of forms: [In this list the locality number at which each occurs is fol- 

 lowed by a mark of interrogation (?) when the determination is regarded as 

 doubtful, and by a mark of exclamation ( ! ) when the identification is posi- 

 tive.] 



. Chulophlehis hroivitiaiia 24 ?, 34 ! 



Cladophlebis falcata 30 !, 34 !, 37-! 



Cladophleiis heterophylla 34 ! 



CUHlophleUs parva 30 ?, 32 !, 34 ! 



CUidoplilelis ungcri 34 ! 



Sagenopteris elliptica 24 ?, 30, ? 



Sagenopteris nervosa 34 ! 



Sagenopteris oregonensis 30 ! 



Angiopteridiitm canmorense 34 !, 37 ! 



Angiopteridium strictinerve 30 !, 32 !, 37 ! 



Aiigiopteridium strictinerve latifoliuni 84 ! 



Angiopteridium ? sp. 24 ! 



Oleandra graminwfolia 37 ! 



Ctenis sp. 37 ! 



Gtenis or Nilsania 34 ! 



Twnlopteris sp. 37 ! 



Dioonites iuchianus 37 ? 



Dioonitcs diinl-erianus 34 ! 



Nilsonia schamnhergensis 37 ! 



Nilsonia stantoni 24 ? 



Wilson ia sp. ? 32 ? 



Nilsonia sp. ? 32 ? 



Nilsonia sp. 37 ! 



Nageiopsis longifolia 30 ? 



Nageiopsis latifolia 37 ? 



Zamites tenuinervis 30 ! 



Cycadeospermum sp. 30 ! 



Eqitisetum texense 30 ? 



Sphenolepidium steniberglanutn 37 ! 



Sequoia reiclten'bacM 37 ! 



Dicotyledon 30 ! 



"This combined list includes 31 forms, but on eliminating those not specific- 

 ally named we have 22 species identified with more or less certainty from this 

 collection, and of these some 15 are determined positivelj' as occurring at one 

 or more of the localities. Not a single one of these species, according to the 

 monograph of Fontaine and Ward, has been found in the Jurassic of California 

 or Oregon, or in the Jurassic elsewhere, but all occur in the Shasta or Koote- 

 nai. There are several of the forms not specifically named, as pointed out 

 under the above lists, that appear to have their closest affinities with .Jurassic 

 species, but they are not identical, so far as the material in hand will permit 

 a judgment. With the above facts in mind, therefore, I do not hesitate to 

 refer the present collections to the Shasta." 



