426 SAUNDERS 



Alaria lanceolata Kjellm. (Plate liii.) 



In the sublittoral zone. Glacier Bay (iii); Sitka Harbor (178). 



The specimens obtained agree well with Kjellman's description, and 

 specimens submitted to him were pronounced to be this species, which 

 is easily recognized by the tufts of long cryptostomata which in no other 

 species are so large and abundant. 



Alaria cordata Tilden. (Plate lvi.) 



In the sublittoral zone on exposed point of an island opposite the 

 entrance to Yakutat Bay (230). The plant was growing in great 

 abundance at this station but was not seen again on the trip. 



The writer's specimens are certainly identical with Miss Tilden's 

 plant, of which, by her kindness, he has seen both herbarium and for- 

 malin specimens. There is also in the writer's herbarium a young 

 plant of this species, from Puget Sound, collected by Mr. N. L. Gard- 

 ner and labelled by Dr. Setchell Alaria esculenta ?. 



The stipe is of medium length (15 cm.), round, dark and firm; 

 rachis short and broad. The blade is oblong, lanceolate (250-450 cm. 

 long), somewhat undulate, plicate, light olive-green, firm ; midrib pro- 

 truding equally on both sides ; medulla slightly swollen near the mar- 

 gins; sporophylls few (7-10 on a side), arising seriately on a short 

 stalk, broadly linear, ovate, cuneate or somewhat cordate at the base ; 

 obtuse or occasionally acute above, sporangia covering most of the sur- 

 face, 25-40 cm. long, 3-6 cm. wide. 



Alaria fistulosa Post & Rupr. (Plate Lvii.) 



The first specimen of this large and interesting plant was a fragment 

 of the midrib washed ashore near Wrangell. At Juneau several much 

 worn specimens were obtained but no plants were found in situ. In 

 Glacier Bay it was abundant from the lower part of the sublittoral 

 zone to a quarter of a mile from the shore. Although some immature 

 plants measured i 2 feet in length the plant does not reach the size nor 

 is it as abundant as farther north. In Yakutat Bay, Prince William 

 Sound, and Cook Inlet a few fragments were found washed ashore but 

 no mature specimens were seen growing. This may be due to the 

 fact that all landings were made in protected places in the bays while 

 this plant loves considerable exposure. Near the moutb of Kukak 

 Bay there are numerous reefs 5-10 fathoms or more below the surface. 

 These reefs are marked by patches of this species, sometimes an acre 

 or more in extent. The plant not only reaches the surface but floats 

 for several meters on the surface. 



The plant is of a very dark olive-brown color, the blade being 

 broadly linear, thin, papery, and smooth, 2-8 or 10 dm. broad; the 



