ma, Colorado, New Mexico, and Arizona. ‘The Permian 
occurrences in southwestern United States are indicated 
by the following: 
Walchia piniformis Texas, Colorado, Arizona, 
Kansas 
W alchia schneideri Texas 
W alchia imbricata Oklahoma, Arizona 
Walchia hypnoides Colorado 
Walchia aff. gracilis Oklahoma, Colorado 
Walchia aff. filiciformis Kansas 
Walchia sp. Kansas 
Several of Lesquereux’s specimens from Colorado 
have been transmitted to Doctor Florin for study. 
David White has also recorded Walchia trom the 
Permian Hermit Flora of Arizona. He referred the ma- 
terial to four species: Walchia dawsoni, W. gracillima, 
Wpiniformis, and W hypnoides. 
I. C. White noted that in the Wichita of Texas, 
Walchia sp. is found in association with a fern flora of 
Dunkard species. 
The eastern American records are of significance be- 
‘ause no occurrences of Wadlchia have hitherto been 
known except in Nova Scotia and Prince Edward Is- 
land. 
Walchia makes its appearance in western Pennsy!]- 
vania in rocks of Conemaugh age in the zone of Lescu- 
ropteris.”’ These rocks are of Stephanian age, as is evi- 
denced by the plants associated in the same strata. 
Pecopteris hemitelioides Neurpoteris aff. ovata 
Pecopteris arborescens Neuropteris neuropteroides 
Pecopteris polymorpha | Neuropteris scheuchzeri 
Pecopteris feminaeformis Odontopteris reichi 
10 ; . 7 . 
Darrah, Summaries of Papers Carb. Congr. pp. 1-8. 1935 
[14] 
