7(î Vol. XLIir., Art. 1.— K. Yendo: 



SPECIES. 

 Alaria fistulosa P. et K. 



(Plate I, figs. 1-4.) 



lUustr. Alg., p. 11, T:ib. XVI.— J. Ag. : Spea., I, p. 144.— Kütz. : 

 Spec. Alg., p. 579.— KjErj.:\[AN : Om Beriiighafv., p. 49. — Saunders : 

 Harr. Alaska Exped., Algae, p. 426, PI. LVIL— ^Setcpi. et Gaedx. : 

 Algae N. W. N. Amer., p. 276. — Collins, Holden and Setch. : 

 Pliye. Bor.-Anier., Fasc. B. No. XLII. — Kibbe : in Paget Sound 

 Mar. Station Piibl., Vol. I, p. 43, fig. 1-33. 



= PJiasganon fislulosum Rvi'R. : Tange de.s oeh. Meere.?, p. 355 etf. 



'l = Alarki marginaia ß muf^œforiim P. et lî. : Illustr. Alg. p. 11. 



"7= Alaria sp? Kjellman : Oin Beringhafv., p. 42. 



Definition of the species. Pvoot, at an early stage of develop- 

 ment, holdfast of dendritic ramification, soon issuing numerous, 

 branching, filiform rhizines successively above, the ne^v rhizines 

 growing over and interweaving with the older ones, resulting in 

 general outline to a high conical mass. Blade linear, 10-25 meters 

 in length, 30-90 cm. in breadth, membranaceous and brittle, densely 

 glandulated, cryptostomata wanting, coarsely transversely corrugat- 

 ed along the midrib, margin entire, undulating, splitting trans- 

 versely to the midrib in the . older part ; base of blade gradually 

 tapering, tip of blade .... Stipe 20-50 cm. in length, terete and 

 verruculose below, 8-12 mm. in diameter, gradually complanated 

 and slightly broadened above, measuring 10-20 mm. in width, 

 narrowed at the transition point ; lower half of the length naked, 

 upper half to the narrowed region bearing the sporophylls. ^Midrib 

 2-3 cm. broad, elevated above the blade on both surfaces with 

 sharp edges, the middle one-third of the breadth longitudinally in- 

 flated, showing an elliptical cross section, but septated at irregular 

 intervals, canaliculatod along both sides of the inflation ; these 

 peculiarities disappearing before reaching to the transition point 



