ens swisn iy places. Summer. 
The rootstocks of this species were used as food by the 
northern Indians (Dr. &. Palmer); in Japan the root- 
stocks and young leaves are used in a similar manner 
( Duchesne); in Europe the leaves are used for bedding ; 
the plant was formerly used in obtaining potash. 
9. PELLZA Link, 1841. 
Stipes rigtdus badius unde Pellacam dixi. Link, 
Pilot berols56. 
Rock-loving ferns. Rootstock short, ascending or slen- 
der, creeping. Leaves pinnatifid—-3-pinnate, stipes dark- 
colored. Sori borne along the revolute portion of the 
leaf-muargin. 
1. P. atropurpurea (L.) Link. Pawo 
fiilicula saxatilis Osmunda facte . . stve Adian- 
tum Marianum. . Pluk, Mant. 81. t..349. 
Pteris Adianté facie caule, ramulis petiolisque 
politiore nitore nigricantibus. . . Gron. F\. 
Zeno 7. 
Pteris atropurpurea 1. Sp. Pl. 1076. 
Pellaea atropurpurea Link,\.c. Eaton, FernsN. 
Am. 2:61. t. 54. ff. 4-7; in Gray Man. 682. 
Onderw. in INP 126; Nak Wem 98; in 
Britt. Man. 9. Clute, Ferns 84. Waters, Ferns 
143. 
Cuirr BRAKE. 
