14 W. B. TURNER, FRESH-WATER ALG^E OF EAST INDIA. 



Ord. III. SCYTONEMACEiE. 

 Gen. 1. Scytonema, Agdh. Syst. 1824. 

 L; S. natans, BrÉb. (in Kutz. Tab. Phyc. II, t, XXII, f. 1; Habil Alg. No. 825; Fl. Eur. 

 Alg. II 1, i>. 253; Born. et Flah. Nost. III, p. 113, 1887?). 

 Central India. 

 2. S. inyochrous, Agdh. (Syst. Alg. p. 40; Conferva nn/chrous, Dillw. Conf. t. XIX; Engl. 

 Bot, I, t. 1555.) 



Northern India. 



Gen. 2. Tolypothrix, Kutz. Phyc. Gen., 1843. 

 1. T. nmscicola, Kutz. (Tab. Phyc. II, t, XXXI, f. 5; Rabh. Alg. No. 297: Fl. Eur. Alg. 

 II, p. 275.). 



Northern India, 



Ord. IV. STIGONEMACE.E, (Agdh.) Nob. 

 Gen. 1. Stigonema, Ag. Syst. p. 22, 1824. 



1. S. turfaceum, (Link.) Cooke (Br. Fr. Alg. j>. 272, t, CXI, f. 2; Dematium turfaceum, 

 Link. Spec. I, 134; Scytonema turfaceum, Engl. Bot, II, t, 2517, f. 1; Hassalia turfosa, 

 Hass. Alg. p. 232 (iiicl. Eng. Bot, t, 2826, f. 1?)! Sirosiphon pulvinatu*! Breb. in 

 Kutz. Sp. Alg. p. 317; Born. et Flah. Nost, I, p. 257, 1886.) 



2. S. saxicolum, Nag. in Ktz. Spec. Alg. p. 316, No. 8. (Sirosiphon, Kutz. 1. c; Born. 

 et Flah. III, p. 72, 1887.) 



Northern India, 



Gen. 2. Hapalosiphon, Nag. in Ktz. Spec. Alg. p. 895. 

 I. H. Braunii.' Nag., in Kutz. Spec. Alg. p. 894. 



Ord. V. RIVULARIACE.E, Rabh. 

 Gen. 1. Calothrix, Agdh. Syst, p. 24. 



1. C. Brebissonii Kutz. Sp. Alg. No. 7, p. 312; C. lanata Lenorm. non Agdh.; Born. et 

 Flah. III, p. 89. 



Northern India. 



2. €. tenuisshna? Braun (in Rabh. Flor. Eur. Alg. II, p. 271, 1865; Symphosiphon minor 

 Hilse in Rabh. Alg. No. 1776; sec. Rabh.). 



Northern India. 



If this is not the form of Braun and Hilse it is very near it, the diam. of the 

 threads is 4.5 — 5 ,«. 



