Myxophyceae 135 



Maze and Schramm. Essai Class. Algues Guadeloupe. 22. 1870-1877. (L. 

 mucosa Crouan). Murray. Catalogue of the Marine Algae of the 

 West Indian Region. Journ. of Bot. 27: 261. 1889. 



Plate V. fig. 56. 



Plant mass up to 1.5 cm. in height, cushion-shaped, hemispherical, 

 caespitose, mucous, green becoming violet; filaments erect, often spirally 

 twisted and entangled below, free and somewhat straight in upper por- 

 tions, scarcely branched; sheaths wide, Lyngbya-like, regular in out- 

 line, lubricous, slightly mucous, sometimes lamellose and fibrillose, usually 

 open at the end; trichomes 14-21 mic. in diameter, constricted at joints, 

 few within the sheath, solitary in upper portion of filament; apex of trich- 

 ome tapering, truncate; cells 3-5 mic. in length; transverse walls granu- 

 lated. 



Bermudas. On thg coast. (Farlow). West Indies. Guadeloupe. 



(Maze). 



259. Hydrocoleus cantharidosmus (Montagne) Gomont. Essai Class. Nos- 



tocacees homocystees. Morot. Journ. de Bot. 4: 353. 1890; Monogr. 



Oscill. 74. pi. 12. f. 6, 7. 1893. De Toni. Syll. Algar. 5: 316. 1907. 

 Maze and Schramm. Essai Class. Algues Guadeloupe. 27. 1870-1877. 

 (L. cantharidosma Montagne, L. agglutinata Crouan, L. 1 a t i- 

 limba Crouan). Murray. Catalogue of the Marine Algae of the West 

 Indian Region. Journ. of Bot. 27: 261. 1889. Vickers. Liste des Algues 

 Marines de la Barbade. Ann. Sci. Nat. Bot. i: 45. 1905. 



Plate V. fig. 57- 



Plant mass up to 2 cm. in height, caespitose, lubricous, in dried 

 specimens adhering to paper, olive or dark blue-green; filaments some- 

 what straight, moderately branched; false branches appressed; sheaths 

 sometimes twice as thick as the trichome, very mucous, irregular and 

 roughened in outline, agglutinated when dried,, sometimes lamelloise, 

 usually open at the apex; trichomes 18-24 mic. in diameter, not constricted 

 at joints, few within the sheath, somewhat parallel, solitary in upper por- 

 tion of filament; apex of trichome tapering, truncate; cells 2-4 mic. in 

 length; transverse walls sometimes granulated. 



West Indies. Guadeloupe. (Maze). Barbados. (Vickers). Hawaii. 

 Growing with other algae below high tide. Hanalei, Kauai. July 1900. (Til- 

 dcn). 



260. Hydrocoleus lyngbyaceus Kuetzing. Species Algar. 259. 1849. Go- 



mont. Monogr. Oscill. 75. pi. 12, f. 8-10. 1893. De Toni. Syll. 



Algar. s: 3I7- I907- 

 Wolle. Fresh Water Algae. IV. Bull. Torr. Bot. Club. 7: 43. 1880; 

 Fresh-Water Algae U. S. 299. pi. 201. f. 27-29. 1887. (L. arenarium 

 (Kuetz.) Rab.). Wolle and Martindale. Algae. Britton's Catalogue of 

 Plants found in New Jersey. Geol. Surv. N. J. 2: 608. 1889. Collins. Pre- 

 liminary Lists of New England Plants.— V. Marine Algae. Rhodora. 2: 

 42. 1900. Vickers. Liste des Algues Marines de la Barbade. Ann. Sci. 

 Nat. Bot. VIII. i: 45- iPOS- 



