Cryptothecia striata G. Thor, 1991

Jagadeesh Ram, T. A. M. & Sinha, G. P., 2016, A world key to Cryptothecia and Myriostigma (Arthoniaceae), with new species and new records from the Andaman and Nicobar Islands, India, Phytotaxa 266 (2), pp. 103-114 : 109-110

Cryptothecia striata G. Thor

This pantropical species has been found as common element in the evergreen and mangrove forests in the Andaman and Nicobar Islands. It is characterized by the greenish grey to greyish white thallus with granular isidia-like structures and whitish prothallus; 1-spored irregularly dispersed asci; 15–21 × 6–10 septate, 55–78 × 28–34 μm ascospores, and gyrophoric and lecanoric acids as lichen substances.

Specimens examined: — INDIA. North Andaman : North Andaman, Radhanagar II, on the way to Nayakattai, alt. 10 m, 22.4.2011, Jagadeesh Ram 263 ( PBL) ; Kalara Forest , alt. 55 m, 23.4.2011, Jagadeesh Ram 291, 293 ( PBL) ; Middle Andaman : Tugapur forest, N 12°48’51.3” E 92°49’15.1”, alt. 52 m, 9.3.2012, Jagadeesh Ram 822 ( PBL) ; ibid., Mangrove forest , 1.3.2012, Jagadeesh Ram 1025 ( PBL) ; Paget Island WLS, 21.3.2012, Jagadeesh Ram 1392, 1407 ( PBL). South Andaman : Badakadi to Kumra Nala Forest, 16.5.2012, Jagadeesh Ram 2135, 2142 ( PBL) ; Baratang Island , Naya Dera Mangrove Forest , 14.7.2012, Jagadeesh Ram 2264 ( PBL). Little Andaman , Hut Bay, White Surf Waterfall Forest, alt. 65 m, 2.5.2012, Jagadeesh Ram 1544, 1545, 1567 ( PBL) ; R. K.Pur, Vishnu Nala Dam Forest , 4.5.2012, Jagadeesh Ram 1701 ( PBL). Nicobar Islands : Kamorta Island, Badanick, 5.10.2011, S. Prabhu 599 ( PBL) ; ibid., Kakana , 11.10.2011, S. Prabhu 606 ( PBL) ; ibid., Munak, S. Prabhu 608, 609 ( PBL) ; Katchal Island , E-wall forest, N 7°59’67.2” E 93°23’84.2”, alt. 15 m, 13.6.2014, Jagadeesh Ram 3704 ( PBL). Little Nicobar Island , Akupa forest , N 7°22’65.8” E 93°39’81.0”, alt. 5 m, 7.12.2014, Jagadeesh Ram 4175 ( PBL). Great Nicobar Island , East West Road, Cingam village forest, N 6°57’93.7” E 93°55’26.9”, alt. 18 m, 29.5.2014, Jagadeesh Ram 3193, 3208 ( PBL) ; Afra Bay forest , N 7°10’99.5” E 93°44’26.7”, alt. 30 m, 10.12.2014, Jagadeesh Ram 4421 ( PBL) .