Plants o.5-1 dm. high; leaves ovate-lanceolate, usually 
2-pinnatifid ; pinnae somewhat ovate-oblong, incised or 
pinnatifid, cuneate, the ultimate divisions variously tooth- 
ed; stipes green except at the base. 
In crevices of rocks. 
Ttt Leaves 2-pinnate to 3-pinnatifid below. 
8.A. ruta-muraria L Pl. 4. 
Asplenium ruta-murarta L.1\. c. 1081. Haton, 1. 
Coa 107. t, 15.0. 15 in Gray |, c. 604. Umderne, 
mae We Heer 2) 26, Nats Meris 100; an oritt, Le. 12. 
Oren e. 102, Waters... 057. 
Wau Rue. 
Plants 1 dm. or higher; the ultimate divisions of the 
leaves rhombic, 6 mm. or less in length, apex toothed or 
incised ; stipes green. 
in-perevices ot rocks, or on old walls. 
Asfplentt species were used in Pre-Linnean times in 
the same way as Adiantum Capillus- Venerts. Parkin- 
son [ Theatr. Bot. 2: 1051. 1640.] says of [ Asplenzum | 
Trichomanes: ‘*This Maidenhair in our Land being 
more plenfifull then the rest”. . ‘‘and both stayeth the 
shedding of the haire and causeth it to grow thick’. 
34 
