CONTENTS. 
Page. 
Introductory remarks \: joni ce ancatee se aa eeinw cues 3 eemleaiesen's ancaeie es 217 
Part... LhetPriasste flora) oni 202s eee he a eee eo lec cntesinwican daeceweieee 218 
The Connecticut Valley area ........ 2.22.22 0 eee eee eee eee eee 222 
The Hudson-Potomac area .........-.------- 2222-2 eee eee eee eee eee eee 229 
Triassic plants from New Jersey..-...--.-.------------------------ 229 
Triassic plants from Pennsylvania .......-..----------------+--+--- 231 
Triassic flora of York County, Pennsylvania, by Atreus Wanner 
and Wm. M. Fontaine ..-....-----.-------------------+----- 233 
Triassic plants from Maryland.....-...--..------------------------ 255 
The Virginia area _..._......-- deh ve Sarena hc Shae ah Bra ep te -- 287 
The North Carolinaarea: << se icisiats Gees deiswiie ss ceciewidiies pe teienbeedicn © 266 
Description of a small collection of fossil wood from the Triassic area 
of North Carolina, by F. H. Knowlton...-........---..---------- 272 
The Emmons collectionizccss<cs cess Geese es eeeoaecse vee eeeeees es 274 
Notes on fossil plants collected by Dr. Ebenezer Emmons from the 
Older Mesozoic rocks of North Carolina, by Wm. M. Fontaine. 277 
The South western;ared 2s ss ccciess secs view tea ewendeniis en eeneee es 315 
Petrified forests of Arizona.......-.-.-.--------------------eee eens 324 
The Taylorsville, California, area.........-.-..--.---------- eee eee eee 332 
Part 1: Le: Murassi¢ More ee sles Sek ctemin aes SRR eRe apa eeiede see 334 
Plant-bearing deposits supposed to be Jurassic.........-.--------------- 334 
Plant-bearing deposits of undoubted Jurassic age .......-.-.-.---------- 339 
The Oroville Motacsieecceecs Sew deans eeeteredee cee ceecees ss 340 
Notes on Mesozoic plants from Oroville, California, by Wm. M. 
Fontaine:ss:tess reeccaneeo teeter clteew nat Gadedasnnaeinae es 842° 
The Jurassic flora of Oregon. .....-.-------------- 2 eee eee ee eee eee 368 
Cycadean trunks from the Jurassic -.-...-------- ----+---+-+-++----- 377 
The Boulder ¢ycad)..ncc20c.2 025 nes heee es cneeetelseeceadewe nes 377 
Jurassic cycads from Wyoming..........-.--------2-0--2 2-2 2ee 382 
Fossil wood from the Jurassic. ....-.---...------------------------ 417 
Fossil wood from the cycad beds of Wyoming.......-..-------- 417 
Description of a new species of Araucarioxylon from the 
cycad bed of the Freezeout Hills, Carbon County, Wyo- 
ming, by F. H. Knowlton ....-..----.--.-+--------+-+--- 418 
Fossil wood from the Jurassic of the Black Hills........-.-..--- 419 
Description of a new genus and species of fossil wood from the 
Jurassic of the Black Hills, by F. H. Knowlton........... 420 
Distribution of the Older Mesozoic flora of the United States ...--.-----.--.- 422 
Table of distribution.......----------------- 2222-2 ee eee eee eee eee eee 422 
Discussion of the table.....-------------------- +222 eee eee eee eee 429 
