Azolla pinnata subsp. asiatica R.M.K.Saunders & K.Fowler (Syn: Azolla imbricata (Roxb. ex Griff.) Nakai; Azolla imbricata var. prolifera Y.X.Lin; Azolla imbricata var. sempervirens Y.X.Lin; Azolla pinnata var. imbricata (Roxb. ex Griff.) Bonap.);
China to Tropical & Subtropical Asia: Assam, Bangladesh, Borneo, China North-Central, China South-Central, China Southeast, East Himalaya, India, Japan, Jawa, Korea, Lesser Sunda Is., Malaya, Maluku, Manchuria, Myanmar, Nansei-shoto, Nepal, New Guinea, Pakistan, Philippines, Sri Lanka, Sulawesi, Sumatera, Taiwan, Thailand, Vietnam, West Himalaya as per POWO;
Peninsular Malaysia, Sumatra, Java, Borneo, Sulawesi, Lesser Sunda Isl. (Lombok, Bali, Alor), Moluccas, Philippines, New Guinea, Thailand, Vietnam, Bhutan, Bangladesh, Myanmar [Burma], India (throughout, Darjeeling, Assam, Uttarakhand), Jammu & Kashmir, Sri Lanka, Nepal, Pakistan, Taiwan, Japan, South Korea, Ryukyu Isl., China (Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hebei, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Liaoning, Shandong, Shanxi, Sichuan, Yunnan, Zhejiang), ?South Africa (?KwaZulu-Natal) as per Catalogue of Life;
Aquatic carpet FOR ID :: TMC Biodiversity Park :: 15 APR 18 : 8 posts by 3 authors. 2 images.
TMC Biodiversity Park Thane
Date: April 15, 2018 … Altitude: about 15 m (50 feet) asl
Please help me with the ID of this floating carpet; it was too far in the middle of pond – could not get close up pictures.
Mosquito Fern. Azolla pinnata.
Thanks, …, for id.
As per distribution it may be Azolla pinnata subsp. asiatica R.M.K.Saunders & K.Fowler compared to distribution of Azolla pinnata subsp. africana (Desv.) R.M.K.Saunders & K.Fowler and Azolla pinnata subsp. pinnata
That’s Azolla pinnata subsp. asiatica (syn.: A. imbricata). Incidentally, as I’ve seen both species grow together in one or two localities (including Kolkata) it would be interesting, if rather challenging, to try to look for a prove hybrids. Though being from quite different sections in the genus that might not occur.