— II — 



Polystichum scopulinum Maxon. The only recorded station 

 within the State for this rare fern is in the San Bernardino Mts., 

 at 6.000 feet alt. ; but it occurs, most probably, elsewhere in the 

 Sierra Nevada. It grows among rocks. 



Polystichum Lemmoni Underw. This is also a rare species, 

 known only from the headwaters of the Sacramento river in Mt. 

 Shasta, and from Alaska. 



Polystichum aculeatum Roth. This is a species of the central 

 and northern coasts of the State, from Santa Cruz county to 

 Ukiah, and, doubtless, northward to the boundary. The var. 

 Calif ornicum Underw. is reported from the same range as the 

 species; the var. lobatum Eind. and Moore from Santa Cruz to 

 Mendocino; the var. angularc Presl. from Santa Cruz only; but 

 they are all likely to accompany the species throughout its 

 range. 



Cystoptcris fragilis Bernh. Bladder fern. Found in all the 

 mountainous districts of the State. The varieties dentata Hook, 

 and laciniata Davenp. have also been collected here. Its habitat 

 is on damp, shaded rocks, notably along the banks of streams. 

 In the south it ascends at least to 8,000 feet alt. 



Woodsia scopulina Eaton. From Mono Pass northward, in the 

 higher Sierra Nevada. 



Woodsia Oregana Eaton. At high altitudes in the Sierra 

 Nevada, from San Bernardino Mt., where it is very rare at about 

 8,000 feet alt., to the northern boundary of the State, and thence 

 to British Columbia. It has been collected also on San Pedro 

 Martir Mt., Lower California, by Mr. Brandegee. This is its 

 southern limit. It grows in tufts among rocks. 



MARSILIACE^E. 



Marsilia vcstita Hook and Grev. This plant apparently has a 

 wide range in the State, both in latitude and in altitude, but is 

 neither common or abundant. Cuyamaea Mts.. in San Diego 

 county, is the most southern locality at which it has been col- 

 lected, and I know of none more northern than Yuba county. 

 It grows in clumps or creeping on muddy banks. 



Pilularia Americana A. Br. In winters of abundant rainfall, 

 little pools form in hollows of the clay mesas about San Diego, 

 and on the surface of these pools, and on their muddy margins, 

 these plants find a congenial home. Often successive years pass 



