82 CONTRIBUTIONS TO THE NATURAL HISTORY OF ALASKA. 



(B. rutaceum, Willd., (B. matricarifolium, A. Brown. Unalashka. T.) 



[B. ternatwm, Schwartz. Common at Unalaslika, growing on the lower level grounds and at 

 the bases of gradually sloping hills. This species remains green throughout the winter, the last 

 frond alone remaining so, and toward spring turns a dull bronzy color, which disappears with the 

 enlivenment of spring. This species was not observed to the westward. T.) 



{B. virginicum, SCHWARTZ. Very rare at Unalaslika; not observed on any of the other Aleu- 

 tian Islands. T.) 



Cystopteris fragilis, Bernh., Unalaslika, Kotzebue Sound. (I found this species to be rare at 

 St. Michael's, of scanty growth in small clusters. At Unalashka it occurs in the small caves along 

 the beach. At Svenoi or Hog Island, in Captain's Harbor, it is very plentiful. In a cave at the 

 head of Goltseb Harbor, on the northern side of Attu Island, it is very abundant, growing in large 

 patches and of luxuriant growtli. It does not occur on the intermediate islands that I am aware 

 of. T.) 



(Aspidiwm oreopteris, Swartz. Common at Unalashka and Attu. Not found on the inter- 

 mediate islands. Not previously described from North America. T.) 



(A. spimdosum var. dilatatum, Hooker. Obtained at Unalashka, Afognak, and Attu. Quite 

 common at the latter place; grows in tufts of a half dozen fronds from a single root. The plant 

 has a yellowish-green color in life, and is conspicuous among other plants at the bases of bluffs 

 and the sloping sides of the wide ravines. T.) 



A. lonchitis, Swartz, Unalashka, Chamisso, and Eschscholtz. (A single tuft, of half a dozen 

 fronds, was brought to me by a native at Saint Michael's. It is quite rare there. At Unalashka 

 it is extremely abundant, growing on the ledges of cliffs and bluffs which form the steep sides of 

 the deeper ravines. This species was never met with far from the seashore, and was not observed 

 on the islands to the westward. T.) 



A. fragrans, Swartz. Sitka, Unalashka. 



A. aculeatum, Swartz. Sitka. (Prof. D. C. Eaton says this species has been found but once 

 at that locality. T.) 



Blechnum spicant, Roth., (Lomaria spicant, Desv.), Sitka. 



Pteris aquilina, L., Sitka. 



P. argentea, S. G. Gmelin. America-Rossica, Steller ex Pallas. (An evident error. T.) 



Allosorus sitchensis, Rtjprecht. ( = Cryptogramme acrostichoides, R. Brown). Sitka. (Mihi 

 ignota, Ledebour.) . 



A. faveolatus, Rtjprecht. Unalashka, Kadiak. (This species is the same as Cryptogramme 

 acrostichoides R. Brown. T.) 



{Phegopteris polypodioidcs, FEE. Common at Unalashka, Afognak, and Attu. T.) 



(P. dryopteris, Fee. Abundant at Unalaslika, Afognak, and Attu. T.) 



Polypodium vulgare, L., (Abundant throughout the Aleutian Islands; grows amongst the tall 

 grasses to a height of a foot, while on the rock ledges it attains a height of only an inch. T.) 



Adiantnm pedatum, L., (Common at Unalashka and Attu. Grows on the ledges of rocks which 

 are covered with turf. It was not observed on the intermediate islands. T.) 



Asplenium felix-fcemina, Bernh., Unalashka, Sitka, Kadiak. (Not common in the spruce 

 woods of Afognak Island. T.) 



ANOPHYTES. 



[Determined and compiled by Thomas P. James.] 



MTJSCI. 



Sphagnum cymbifoUum, Ehrh., Sitka. 



S. teres, Wahl., Nulato. 



8. cuspidatum, var. recurvum. Beauv., Sitka. 



S. acutifolium, Ehrh., Sitka and Alaska. 



8. fimbriatum, Wilson. Kotzebue Sound. 



8. fimbriatum, var. ramis denso compactis, foliis brevioribus subellipticis ; Norton Sound. 



Weisia serrulata, Funk., Nulato. 



