velopment, though less abundant, was Phegopteris phegopteris, 

 which was confined to the streams flowing down the mountain 

 sides. Cystopteris fragilis was common along the rocky bluffs 

 forming the seashore. Polys tie hum lone hit is grew on the moun- 

 tain peaks at an altitude of 1,200-1,800 feet. A form of Dryop- 

 teris spinulosa was common at sea level, growing in the same 

 habitat as A. eyelosorum, and a small Botrychium, perhaps B. 

 boreale, was seen at sea-level and in the mountains. Equisetum 

 arvense was common at sea-level and in moist places higher on 

 the mountains. In the swamps grew E. variegatum. This did 

 not seem to be very common, nor did it grow in as dense tufts as 

 it did in the vicinity of Nome City. 



The following Lycopodiums, all of which were common, 

 were collected on the mountain slopes: L. selago, L. anuotinum 

 pungens, L. clavatum, L. Sitchense and L. alpinum. The 

 mountain slopes were decorated with these plants and a small 

 dogwood resembling C. Canadensis, besides many other flower- 

 ing plants. 



We sailed from Dutch Harbor June 20 and arrived at Nome 

 City June 23. The country here may be divided into three areas: 

 first, the tundra; second, the narrow belt connecting the tundra 

 with the mountains; third, the mountains. 



In the first of these areas there are no ferns. Equisetum 

 variegatum grew in dense tufts along the sluggish streams, and 

 E. arvense was observed both on the tundra and seashore. Lyco- 

 podium selago grows all over the tundra. It did not resemble 

 the rank growth o p the Unalaska form, but was very short and 

 rigid with only a few stalks coming up in a place, and I thought 

 it must be a different species. The above mentioned comprise 

 the Pteridophytes of the first area as far as observed. 



In the second area grew Equisetum silvatieum and E. 

 arvense, both quite common. E. silvatieum differed from the 

 eastern form in being slenderer and more branched. Several of 

 the Lycopodiums above mentioned were observed here in the 

 shade of the alder and willow. CystoJ>teris montana grew in the 

 grassy places among the shrubs. It was quite abundant at the 

 base of Anvil Mountain, five miles north of Nome City, though 

 seen nowhere else. A form of Dryopteris spinulosa grew in a 

 rather stiff, rigid manner in open places among rocks. It attained 

 its highest development in the shade. In similar situations grew 



