266 Minnesota Algae 



Maze and Schramm. Essai Class. Algues Guadeloupe. 31 . 1877. (M a s- 

 tichothrix longissima Crouan). Wolle. Fresh Water Algae. II. 

 Bull. Torr. Bot. Club. 6: 138. 1877. (Mastigonema fusca Wolle). 

 Fresh Water Algae III. Bull. Torr. Bot. Club. 6: 184. 1877. (M a s- 

 tigothrix aeruginea Kuetz. Bennett. Plants of Rhode Island. 



114. 1888. (Mastigonema aeruginosum (Kg.) Kirchn.). Col- 



lins. Algae of Middlesex County. 13. 1888. (Mastigonema aerugi- 

 neum Kirchn.). Tilden. List of Fresh-Water Algae collected 



in Minnesota during 1893. Minn. Bot. Studies. 1 : 30. 1894. Collins, 



Holden and Setchell. Phyc. Bor.-Am. Fasc. i. no. 11. 1895. Col- 



lins. Algae. Flora of the Blue Hills, Middlesex Fells, Stony Brook and 

 Beaver Brook Reservations of the Metropolitan Park Commission, Massa- 

 chusetts. 127. 1896. Collins. The Algae of Jamaica. Proc. Am. Acad. 37: 

 241. 1901. Saunders. The Algae. Harriman Alaska Expedition. Proc. 

 Wash. Acad. Sci. 3: 399. igoi. Snow. The Plankton Algae of Lake Erie. 

 U. S. Fish Comm. Bull, for 1902. 22: 392. 1903. Setchell and Gardner. Al- 

 gae of Northwestern America. Univ. Calif. Pub. Bot. i: 197. 1903. Col- 

 lins. The Algae of the Flume. Rhodora. 6: 230. 1904. Lemmermann. Al- 

 genfl. Sandwich. -Inseln. Bot. Jahrb. 34: 627. 1905. Collins. Phycological 

 Notes of the late Isaac Holden. — II. Rhodora. 7: 237. 1905. Collins, Hol- 

 den and Setchell. Phyc. Bor.-Am. Fasc. 29. no. 1407. 1907. 



Plate XVII. fig. 10, 11. 



Filaments 10-12 mic. in diameter, 2-3 decimill. in length, scattered or 

 gregarious, living within the colonies of gelatinous algae, curved and bul- 

 bous-inflated at the base (bulb 15 mic. in diameter) ; sheaths thick, colorless, 

 gelatinous, diffluent at the apex; trichomes 7-8 mic. in diameter, ending in 

 a long hair; cells short; heterocysts one or two at the base. 



Alaska. Embedded in the gelatinous coating of Batrachospermum 

 vagum from a freshwater pond. Cook Inlet; Kadiak Island. (Saunders). 

 Occurring singly or few together in the jelly of other species of algae. Near 

 Iliuliuk, Unalaska. (Setchell and Lawson). New Hampshire. On Batra- 

 chospermum vagum. Lake Chocorua. September 1906; on wall of 

 Flume. (Collins). Massachusetts. On Batrachospermum. Billerica. 

 (Faxon). Among other algae on rocks at Cascade, Middlesex Fells. (Collins). 

 Rhode Island. Easton's Pond, Newport. (Bennett). Connecticut. On 



Batrachospermum vagum. Pool below Factory Pond Dam. Octo- 

 ber. (Holden). New Jersey. October 1892. (Peters). Pennsylvania. 

 (Wolle). Ohio. In plankton. Lake Erie. Put-in-Bay. (Snow). Minne- 

 sota. In pool near Lake Kilpatrick. June 1893. (Ballard). West Indies. 

 Giuadeloupe. (Conquerant). Hawaii. In ditches between Honolulu and 

 Waikiki, Oahu. 1896-1897. (Schauinsland). 



480. Calothrix sandvicensis (Nordstedt) Schmidle. Zur Entwickelung einer 

 Zygnema und Calothrix. Flora. 84: 170. pi. 5. f. 12-14. 1897. De 

 Toni. Syll. Algar. 5: 618. 1907. 

 Nordstedt. De Algis Aquae Dulcis et de CharaCeis ex Insulis Sand- 



vicensibus a Sv. Berggren 1875 reportatis. 5. pi. i. f. 3. 1878. (L o p h o- 



p odium sandvicense Nordst.). Lemmermann. Algenfl. Sandwich.- 



Inseln. Bot. Jahrb. 34: 627. 1905. 



