vol.i] Setchell— Gardner. — Alga of Northwestern America. 321 



Nitophyllum violaceum J. Agardh. 



On rocks in the lower litoral and upper sublitoral zones. 

 Vancouver Island (probably at Esquimalt), B. C, J. G. 

 Agardh (1898, p. 92, under N. stenoglossum) ; Port Renfrew, 

 B. C, Tilden, No. 321! under X. multilobum. 



A very variable species as regards habit and somewhat as 

 regards color. As the sori appear in almost all younger plants 

 on the margins and even on the surfaces of the lobes, appearing 

 later on marginal leaflets, it does not seem desirable to remove 

 this species from Nitophyllum and place it in Botryoglossum as 

 DeToni has done. Miss Tilden's plant, although cystocarpic, 

 seems clearly of this species, and would probably have been 

 referred to A. stenoglossum by J. G. Agardh. 



Nitophyllum Ruprechtianum J. Agardh. 



On other alga? in the upper sublitoral zone. St. Paul Island, 

 Alaska, Greeley and Snodgrass, No. 5802! (Setchell, 1899, p. 

 •594); Norfolk Sound (near Sitka), Alaska, Post els and 

 Biipreeht (1840, p. 15, under Hymenena fimbriata) ; Victoria and 

 Esquimalt, B. C, Harvey (1862, p. 170, under Hymenena fim- 

 briata); Port Renfrew, B. C, Butler and Polley, Nos. 22, 108, 

 and in Collins, Holden and Setchell, P.B.-A., No. 937! ; Puget 

 Sound, Bailey and Harvey (1862, p. 161, under Hymenena fissa 

 and Botryoearpum platycarpum) ; west coast of Whidbey Island, 

 Wash.. X.L.G., No. 267!; Port Orchard, Kitsap County, 

 Wash.. Tilden, No. 213! 



X. Ruprechtianum is another species, in which the sori are 

 arranged differently in the younger from what they are in the 

 older plants. At the tips, the sori commonly form nabellate 

 lines along the veins in the substance of the fronds. This is the 

 V. fliitelligerum -I. Agardh, and is represented by No. 108 from 

 Port Renfrew. Later, the sori occupy marginal leaflets. Con- 

 sequently, there seems to be no reason for placing this species 

 under Botryoglossum as DeToni has done. 



Delesseria intermedia J. Agardh. 



Vancouver Island, B. C, J. G. Agardh (1870, p. 55). 

 Known to us only from Agai'dh's description. 



