Vol. 11 SeicheJl-Gardner. — Algn of Nortlucesiern America. 835 



Odonthalia floccosa t. macracantha (Kiutzing) Setchell aud 

 Gardner conih. iiov. 



Lopluo-ii iii(((nic(ntfh(i Kuetzing, Tabula^ Phjeologioge, Vol. 

 1.'), \). 14, pi. 89. d-o-, 1865. 



On rocks in the litoral zone. St. Paul Island, Alaska, Greeley 

 (iihJ Stiodf/rass, No. 5796! (ef. Setehell, 1899, p. 594, nnder 

 Rhodomeht flocrosd) \ west shore of Amakuak Island, Bay of 

 Uualaska, Alaska, ir.A.*S'. ami A.A.L.\ No. 8254!; Uyak Bay, 

 Kadiak Island, Alaska, W.A.S. and A.A.L., Nos. 5083!, 5085!; 

 Harvester Island, Uyak Bay, Kadiak Island, Alaska, ir.A.*S'. 

 ami A.A.L., No. 5106! ; Port Renfrew, B. C, Ihitler and PoJJeyl 



This is a coarser and laxer form than the preceding and is 

 well represented by Kuetzing' s figures. The glonierules of repro- 

 ductive branehlets are distinct l)ut not so dense as in f. roniosa. 



Odonthalia Lyallii (Harvey) J. Agardh. Plate 27. 



On ditferent algjv, in the ui)per sublitoral zone. Strait of Juan 

 de Fuca, B. C, Harvnj (1862. ]). 168, under Bhodome la Lijallii) ■ 

 west coast of Whidhcy Island. Wash., X.L.G., Nos. 8!, 126!, 

 161!. 198!, and iu C"(.llins, Holden and Setehell, P. B.-A., No. 

 !»4()!; San Juan Island, Wash., Tilde)), No. 819!, under 

 La II )r)i cia Gre r i Ilea )i a . 



We have had considerable trouble in determining with any 

 certainty, or at least satisfaction, the Odonthalias of our coast, 

 and the present arrangement, while it seems to us to re])resent 

 the case fairly well from the species point of view, must neces- 

 sarily be ]>rovisional as far as the exact synonym\- is concerned. 

 The plant included under this name, is, we feel quite certain, 

 the plant of Harvey. Besides the locality of Whidbey Island, 

 Gardner has found it also near Port Townsend. The latter locality 

 must be in the same immediate region whence the type specimen 

 was obtained. The species, as it comes ashore, is frequently long 

 (uj) to 45 cm. and probably even longer), without trace of mid- 

 rib, with the cystocarps alternating and distant on unchanged 

 pinnules, while the stichidia are placed more closely, but the 

 rhachis is not appreciably abbreviated. These are shown in the 

 figures on plate 27. The only species which seems to come near 

 it is the next, but in that, the frond has a distinct midrib and the 



