[425] THE A1.GM 189 



Alaria fragilis sp. nov. (Plate liv. ) 



Plant of small size (4-8 dm. long) ; blade lanceolate or linear, 

 undulate on the margin, 1-2 dm. broad, substance thin membrana- 

 ceous, brittle, drying dark ; midrib quadrangular in cross section, pro- 

 truding equally on each margin ; stipe short, rounded at base, slightly 

 flattened above, 7-12 cm. long; rachis 6-15 cm. long, slightly flat- 

 tened but no broader than the stipe; sporophylls few (8-18), distant, 

 oblong elliptical, often oblique at the base, very obtuse above, nar- 

 rowed below to a stalk (5-15 mm. long) ; sporangia confined to the 

 basal third of the sporophyll. 



Dr. Kjellman compares this plant to Harvey's specimen labeled 

 Alaria fylaii Grev.^ from Vancouver Island, but he agrees that 

 Harvey's specimen is distinct from Alaria pylaii of the Atlantic and 

 Polar Seas and is an undescribed species. This plant differs essen- 

 tially from the description of A. pylaii in having a longer stipe and 

 the sporophylls few and distinct. 



In the sublittoral zone. Glacier Bay (8oJ^ ) ; Prince William Sound 

 (257); Kukak Bay (3335^). 



Alaria fragilis forma buUata form. nov. 



With the last. Glacier Bay (79). 



With this species were collected several specimens that agree with 

 it except that the blade Is densely covered with small bullations, occa- 

 sionally a plant being found that had only a very few or almost no bulla- 

 tions. It may be a distinct species but It seems preferable to regard it 

 as a buUate form of the last until it can be further studied. 



Alaria laticosta Kjellm. (Plate lv.) 



In the sublittoral zone, In protected coves, Kukak Bay (333). 



Plant of medium size, 1-2 mm. ; stipe short, round, 2-5 mm. long; 

 rachis long muriculate, slightly broader than the stipe ; lamina broadly 

 linear, dark brown, drying blackish, undulate on the margin, plicated 

 and fluted, 10-20 cm. broad, tapering below to the transition point, 

 midrib 7—12 mm. broad; sporophylls numerous, long and narrow, 

 rounded at end, gradually narrowed to a short Indistinct stalk, fruit 

 usually confined to the lower two-thirds of the sporophyll, varying In 

 size, 10-30 cm. long, 1—2 cm. wide, and borne on a stalk 4 mm. long. 



Dr. Kjellman referred the plants sent him to this species with some 

 doubt. He says : " The form, color and consistency of the blade, and 

 the form, width and rigidity of the sporophyll differ somewhat from 

 this species." 



» Harvey's Notes Col. Alg. N. W. Coast, 165. 



