I20 Minnesota Algae 



Crouan). Collins, Holden and Setdhell. Phyc. Bor.-Am. Fasc. 6. no. 255. 

 1897. Collins. Preliminary Lists of New England Plants.— V. Marine 

 Algae. Rhodora. 2: 42. 1900. Bessey, Pound and Clements. Additions to 

 the Reported Flora of the State. Hot. Surv. Nebraska. 5: 12. 1901. Col- 

 lins, Holden and Setchell. Phyc. Bor.-Am. Fasc. 23, no. 1106. 1903. Col- 

 lins. Phycological Notes of the late Isaac Holden. — I. Rhodora. 7: 172. ipoS- 

 Vickers. Liste des Algues Marines de la Barbade. Ann. Sci. Nat. Bot. VIII. 

 i: 55- ipoS- Lemmermann. Algenfl. Sandwich. -Inseln. Bot. Jahrb. 34: 620. 

 1905. Collins. Notes on Algae. IX. Rhodora. 10: 160. 1908. 



Plate V. fig. 39. 



Plant mass about 5 cm. in height, caespitose, extended, fasciculate, 

 mucous, dull yellowish or dark green, when dried becoming violet; fila- 

 ments ascending from a decumbent and tangled base, long, straight, some- 

 v/hat rigid; sheaths up to S mic. in thickness, colorless, later becoming 

 lamellose and roughened on the surface; trichomes 9-25 mic. in diameter, 

 not constricted at joints; apex of trichome not tapering nor capitate; apical 

 cell rotund; calyptra none; cells 2-4 mic. in length; transverse walls usually 

 granulated; cell 'contents olive or blue-green. 



Maine. Salt marsh. Stover's Point, South Harpswell. (Collins.) Massa- 

 chusetts. Common on Z o s t e r a. Summer. Wood's Holl. (Farlow). Glou- 

 cester. (Davis). Rhode Island. (Collins). Connecticut. On rocks and 

 iron work. Stratford Shoals Light, Long Island Sound, near Bridgeport. 

 October 1891. (Holden). New York. Sea shores or mud. Canarsic Bay, 

 Long Island; on leaves of Z o s t e r a, Peconic Bay. (Hooper, Harvey). 

 Prince's Bay, Staten Island; Canarsie, Bay Ridge, Long Island. (Pike). 

 South Carolina. Charleston. (Farlow, Gibbes). Florida. On sand-cov- 

 ered rocks of a jetty, littoral. Anastasia Island. October 1902. (Howe). 

 Nebraska. In culture from salt basin. Lincoln. (Bessey, Pound and Clem- 

 ents). West Indies. Guadeloupe. (Maze). Havraii. (Farlow). 



Forma violacea Collins. The Algae of Jamaica. Proc. Am. Acad. Arts 

 Sci. 37: 240. 1901. De Toni. Syll. Algar. 5: 703. 1907. 



Cell contents violet. 



West Indies. Manchioneal Bay, Jamaica. July 1900. (Pease and Butler). 



234. Lyngbya aestuarii (Mertens) Liebman. Bemerkninger og Tillag til 

 den danske Algeflora. Kroyers Tidskrift. 492. 1841. Gomont. Monogr. 

 Oscill. 147. pi. 3. f. I, 2. 1893. De Toni. Syll. Algar. 5: 262. 1907. 

 Harvey. Nereis Boreali-Americana. Part III. 102. pi. 47. B, F. 1858. 

 (L. f e r r u gin e a C. Ag., L. fulva Harv.). Schramm and Maze. 



Essai Class. Algues Guadeloupe. 32. 1865. (L. congesta Crouan). Far- 

 low. List Marine Algae U. S. Proc. Am. Acad. Arts Sci. 10: 380. 1875. 

 Farlow, Anderson and Eaton. Algae. Am. Bor. Exsicc. no. 176. 1877. 

 WoUe. Fresh Water Algae. III. Bull. Torr. Bot. Club. 6: 183. 1877. (Ph. 

 olivaceum Rab.). Wittrock and Nordstedt. Algae. Aq. Dulc. Exsicc. 

 no. 282. 1879. (L. aestuarii aeruginosa Wolle). WoUe. Fresh 

 Water Algae. Bull. Torr. Bot. Club. 6: 283. 1879. (L. aeruginosa Ag.). 

 Farlow. Marine Algae of New England. 34. 1881. Wolle. Fresh Water 

 Algae. VI. Bull. Torr. Bot. Club. 9: 25. 1882. Pike. Check List of Marine 



