The most important and widespread of the Paleo- 
zoic conifers is Walchia piniformis (Schlotheim) Stern- 
berg.’ It occurs in both Permian and Stephanian rocks 
of the northern hemisphere. In the vegetative condition 
this species is distinguished with difficulty from Walehia 
hypnoides Brongniart and Walehia filicyformis (Schlot- 
heim) Sternberg. Florin’ has created a new genus J77- 
nestia for the latter species. 
‘The present note is concerned with the occurrence 
of three specimens of Walchia from eastern North Amer- 
ica. One is from the Stephanian (‘‘Permian’’) of Prince 
Edward Island, and the other two from western Penn- 
sylvania. Of these one is Stephanian and the second 
Permian. The three specimens fall within the range of 
variability of Walchia piniformis, although the piece from 
Prince Edward Island conforms also to Walchia gracilis 
Dawson. The material contains only vegetative branches, 
and in the absence of reproductive shoots, an assignment 
to these unsatisfactory species is the most convenient. A 
score of cellulose transfers have failed to reveal diagnos- 
tic cellular structures. 
WALCHIA Sternberg 1826 Vers. Fl. Vorwelt: 
vol. 1. p. 22. 
Walchia piniformis (Schlotheim) Sternberg 
1820 Lycopodiolithes piniformis Schlotheim 
Petrefactenkunde p. 415. pl. 28. figs. 1,2. pl. 25. 
fig. 1. 
1826 Walechia piniformis Sternberg 
Vers. Fl. Vorw. vol. 1. p. 22. 
1828 Lycopodites piniformis Brongniart 
Prodrome p. 89. 
1870 Walchia piniformis Schimper 
*Petrefactenkunde p. 415 
“Arkiv Bot. Bd. 21A. No. 13, 1927 
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