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TWO NEW SPECIES OF POLYPORACEAE. 



BY 



S. E. Bose, M.A., F.L.S. 



Professor of Botany, Carmichael Medical College, Calcutta. 



I am making a systematic study of Polyporaceas of Bengal and 

 Agaricaceae of my neighbouring places. I am bringing them out in 

 series in our College Bulletins and some of the local journals. But 

 little work has been done on Bengal Fungi (specially Polyporaceae and 

 Agaricaceae). Berkeley published notes on some collected by Sir 

 J. D. Hooker in Darjeeling and Himalayan hilly tracts in Hooker's 

 Journal of Botany, Vols. II, III, IV and VI ; but since then there has 

 been hardly any accountable work beyond identification of stray collec- 

 tions by Currey, Massee and Lloyd. Most of my specimens which 

 have already been published, I had worked out at the Mycological 

 Herbarium of Peradeniya Royal Botanical Gardens, Ceylon, with the 

 kind assistance of Mr. T. Petch, the indefatigable worker on Ceylon 

 Fungi. Some were sent to Mr. Lloyd the famous Mycologist of Cin- 

 cinnati, Ohio, who has undoubtedly the largest collection of Polypor- 

 aceae from all different parts of the world. After very careful scru- 

 tiny, Mr. Lloyd has confirmed the following two as new species. lam 

 sincerely grateful to him for the trouble he has taken in matching 

 them with the rich collection of Polypores. 



1. Polyporus friabilis., sp. nov. 



Habitat — Growing from the ground, collected from Nagbol 

 (Hooghly Dist.), in June, 1919 and from the interior of Howrah Dist. 

 on 13th October, 1919 and on rocky soil from Udaigiri, Puri (Orissa) 

 in November 1920, and from Coimbatore, Madras, in March, 1921. 



Pileus — Stalked, mostly mesopoclial, in one case lateral, soft, be- 

 comes a bit hard in drying up, mostly circular in form, about 6 cm. 

 across, the bigger one from Howrah has a diameter of about 17 cm. 

 and is about 12 mm. thick, others about 3 mm. thick. It is a fleshy 

 species, and has an offensive smell all over when fresh. 



Stalk — Concolorous with the pileus, short, 1} to 3 cm. long, lj 

 to 3 cm. thick (the bigger one 3 cm. thick). 



Upper surface — Smooth, soft, not zoned, but wrinkled, colour 

 yellowish-grey when fresh, acquires a brownish tinge here and there 

 in drying. 



