54 Minnesota Algae 



Rhode Island. On Enteromorpha intestinalis. Easton's Point, 

 Newport. September 1898. (Simmons). 



120. Dermocarpa fucicola Saunders in Collins, Holden and Setchell. Phyc. 



Bor.-Am. no. 801. 1901. De Toni. Syll. Algar. 5: 129. 1907. 



Saunders. The Algae. Harriman Alaska Expedition. Proc. Wash. Acad. 

 Sci. 3: 397. pi. 46. f. 4, 5. 1901. Setchell and Gardner. Algae of North- 

 western America. Univ. Calif. Pub. Bot. i: 181. 1903. Collins, Holden 

 and Setchell. Phyc. Bor.-Am. Fasc. 26. no. 1251. 1905. 



Plate III. fig. 22, 23. 



Colonies 2-12 mm. in diameter, forming orbicular or irregular patches 

 which become confluent into irregular masses of indefinite extent, dark 

 violet-brown in color; cells 18-25 mic. in diameter, 40-60 mic. in length, 

 'ovate, clavate or spatulate, much narrowed below; gonidia abundant. 



Alaska. On Fucus. Puget Sound. (Saunders). Canada. North of 

 Oak Bay, Victoria, British Columbia. July 1898. (Tilden). Washingtoh. 

 On Iridaea laminarioides. Minnesota reef. San Juan Island. 1898. 

 (Tilden). On G e 1 i d i u m. East Sound, Orcas Island, Washington. (Gard- 

 ner.) On Fucus, Gigartina, Odonthalia, Amphiroa, West 

 shore of Whidbey Island, Washington. (Gardner). On Fucus evanes- 

 cens macrocephalus. Near Seattle.' June 1899. (Saunders). Cal- 

 ifornia. On G e 1 i d i u m, middle littoral. Point Carmel. Monterey County. 

 3 June 1901. (Setchell). 



"The present species occurs along the western coast of North America 

 from Puget Sound to Monterey, California, and grows on all sorts of algae. 

 In its younger and purely vegetative condition, the patches are small and 

 the cells are long and narrow, 4-8 mic. broad and up to 28 mic. high, of 

 equal breadth throughout. Soon they begin to broaden above giving 

 them something of a pear-shape. In this condition they correspond closely 

 to the description and figures given by Sauvageau (1895, p. 8 pi. 7. f. 2, 3.) 

 of his D. biscayensis.'' 



"Sauvageau's specimens, which grew on Sargassum, do not show 

 conidia, but our specimens show that when the cells proceed to this condi- 

 tion, they become still more swollen in the upper part, while the lower 

 part remains narrow, resembling a sort of stipe. In conidial condition the 

 cells measure 60-65 mic. in height and 25-35 niic. in diameter. * * * We 

 believe that when fruiting specimens can be compared, that this species 

 will b^ found to be identical with D. biscayensis Sauvageau." — Setchell. 



121. Dermocarpa smaragdinus (Reinsch) nob. Reinsch. Contrib. Algol. 



et Fungol. i: 16. pi. 25. f. 4. 1875. De Toni. Syll. Algar. 5; 131. 

 1907. (Sphaenosiphon smaragdinus Reinsch). 

 Farlow. Marine Algae. New England. 61. 1881 



Plate III. fig. 24, 25. 



Colonies irregularly outlined; sheaths thick; cells 8.5-11 mic. in diam- 

 eter, I6.S-33-S mic. in length, pear-shaped or broadly wedge-shaped, rounded 

 at the apex, prolonged at the base into a hyaline stalk about 2 mic. in diam- 

 eter; cell contents slightly granular, deep bluish-green (smaragdinus). 



