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8. Nostoc carneum Ag. ex Born. et Flah. (Pl.- II, Fig. 11)

Desikachary, 1959: 381.
Thallus (balls) gelatinous small, united variously, tuberculate, brownish; filaments

twisted and flexuous, densely entangled; trichomes 3.0 µm broad, cells sub-spherical,
heterocysts 3.5 µm broad.

Distribution: Tamilnadu (Anand and Subramanian, 1994), Kerala (Anand and Hopper,
1995), Andra pradesh (Suseela and Goyal, 1995 b), Assam (Ahmed, et al., 1999; Ahmed,

2001; Ahmed and Kalita, 2002), Manipur (Devi et al., 1999), Rajasthan (Tiwari et al., 1999),

Uttar Pradesh (Mishra et al., 2001a and b), West Bengal (Tirkey and Adhikary, 2005, Singh
et al., 2001).

9. Nostoc ellipsosporum (Desm.) Rabenh. ex Born. et Flah.

(incl. var. vaginis achromatices) (Pl.- II, Fig. 12).
Desikachary, 1959: 383.

Thallus irregularly expanded, brownish, filaments flexuous, loosely entangled;
trichomes 2.5- 4.0 µm broad, light blue-green; cells cylindrical, heterocysts oblong, 6- 10.5

µm long, 5- 6.5 µm broad, spores ellipsoidal, 6.5- 7 µm broad, 8.5- 11.5 µm long.
Distribution: Madhya Pradesh (Bendre and Agarker, 1965), Uttar Pradesh (Gupta, 1966; Pal,

1975), Tamilnadu (Tiwari, 1972), Bihar (Verma et al., 1990), Andhra Pradesh (Suseela and

Goyal, 1995 b; Rao et al., 2008), Assam (Ahmed et al., 1999; Hazarika et al., 2001),
Rajasthan (Tiwari et al., 1999), Maharashtra (Patil, 2000; Auti and Pingle, 2006; Auti, 2007),

West Bengal (Singh et al., 2001, Tirkey and Adhikary, 2005), Orissa (Das, 2002, 2005; Sahu,
2000).

10. Nostoc calcicola Breb. ex Born. et Flah. (Pl.- III, Fig. 13).
Desikachary, 1959: 384.

Thallus mucilaginous, variable is size, gray and blue-green, 4.6 cm in diameter;

filaments loosely entangled; trichome 2.5 µm broad, pale blue-green, heterocysts sub-
spherical, 4.0 µm broad.

Distribution: Bihar (Verma et al., 1990; Kumar and Saha, 1993), Tamilnadu (Ramkrishnan

and Kannan, 1992; Kavitha et al., 2004), Assam (Saikia and Bordoloi, 1994; Ahmed et al.,
1999 Ahmed, 2001; Hazarika et al., 2001; Ahmed and Kalita, 2002), Kerala (Anand and

Hopper, 1995), Maharashtra (Shinde, 1995; Patil, 2000; Auti and Pingle, 2006; Auti, 2007),
Manipur (Devi et al., 1999), Rajasthan (Tiwari et al., 1999; Pandey, 2002; Vishnoi and

Srivastava, 2004), Orissa (Sahu, 2000), Uttar Pradesh (Mishra et al., 2001 a, b; Singh, 2001),

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