6 Sierra Club Publications. 



bipinnate, lanceolate in general outline, entirely smooth ; the 

 ultimate divisions are linear-oblong, minutely crenate. 



Bubbs Creek, East Lake, General Grant Grove, under the 

 sequoias along the streams. 



Dryopteris rigida arguta Underw. Shield-Fern. (Fig. 7.) 

 Stems scaly at base, fronds a foot or two long, bipinnate ; divi- 

 sions confluent, oblong, acute, serrate, the apex tipped with a fine, 

 slender, short bristle. Millwood and Bubbs Creek. 



Fig. 



Cystopteris fragilis Bernh. Britti.e-Fern. (Fig. 8.) 

 Delicate ferns with creeping rootstocks. Fronds lanceolate, 

 thin, smooth, bipinnate ; ultimate divisions decurrent ovate or 

 oblong, toothed or incised. This was collected along Bubbs Creek. 



Fig. 8. 



