324 Universittj of California Puhlications. ibotany 



Pteridium Juergensii -J. Agardh. 



St. Paul Island, Alaska, BuprerJif (1851, p. 24."), under Deles- 

 seria complanata) , Farloiv (1886, p. 473. under ]). JuerfjcnHii) ; 

 Unalaska, Alaska, KxprecJit (1851, p. 245, under J), compla- 

 iKifa) ; Sannak Island, Alaska, Turner (188G, p. 85, under J). 

 Juergensii) . 



We have not seen a specimen. 



Pteridium spinulosum (Ruprecht) J. Agardh. 



St. Paul Island. Alaska, Rupreclit (1851. p. 244, under I). 

 BeeritigiaiKt f. s})hiul(>sa) \ Bay of Morozof (Morzhovoi Bay), 

 Alaska, Towti.send, No. 5776! 



We have ventured to refer here a narrow, sterile plant, 

 hut not without some doubt. J. G. Agardh (1876, p. 483) leaves 

 it to be understood that he knows nothing of the sori of this 

 species and DeToni (1900, ]). 714) says: "fructibus ignotis," 

 but Ruprecht says distinctly (1851, p. 244), that the somewhat 

 young tetraspores, in a specimen from St. Paul form a long line, 

 on each side of the midrib, extending from near the base of a 

 branch very nearly to the tip. 



Pteridium a latum (Hudson) J. Agardh. 



Victoria, B. C, ISatmders (1901, p. 437, under Delesseria 

 a lata) ; on stems of Nereocystis, probably near Esquimalt (no 

 special locality given). B. C, Harvey (1862, p. 437. under 

 J), alata var. latissima) . 



We have seen no specimens of this species from our territory 

 and simply quote the above localities. The narrow Delesseriea^ 

 of our coast need more careful study and revision. 



Pteridium? serratum (P. & R.) DeToni. 



St. Paul Island, Alaska, RuprecJit (1851, p. 245, under Deles- 

 seria serniid) \ Unalaska, Alaska, Postels and Ruprecht (1840, 

 ]). 15, under D. serrafa) \ Alaska, kSaunders (1901. ]>. 438. undei- 

 1). serratd) . 



Ruprecht states that his plants grew generally on I'tilofa 

 Aspleiiioides. but Saunders gives neither hal)itat nor exact 

 localitv. 



