1/8 GEOLOGICAL SURVEY OF CANADA. 



Hogsback, south of Ottawa, Ont., April 3<Dth, 1897 5 along the 

 Beaver Meadow, Hull, Que. (Macoun.) 



594. p. gemmata, (Acn.) N/EG. & HEPP. 



On bark of trees along the Gaspe Coast, Que.; on maple trunks 

 at Ottawa, Ont.; on trunks at Belleville and Central Ontario 

 Junction, Hastings Co., Ont. (Macoun.) On bark, Rigaud Moun- 

 tain, Vaudreuil Co., Que. (Rev. G. Ducharme} 



595. P. cinerella, (PLOT.) TUCKERM. 



On maple and black ash bark at Ottawa, Ont., April igth, 

 1898. (Macoun.} 



596. P. hyalospora, (NYL.) TUCKERM. 



On bark of trees, London, Canada. (A. T. Drummond} On bark 

 of trees at Belleville, Hastings Co., Ont. (Macoun.} 



597. P. patellarseformis, ECKFELDT. 



On young black ash, Billing's bush, Rideau Park, Ottawa, Ont., 

 April 1 9th, 1897. (Macoun.) 



598. P. leucoplaca, (WALLR.) KCERB. 



On bark of black ash at Belleville and of maples at Central 

 Ontario Junction, Hastings Co., Ont.; on maple bark in woods 

 near Hull, Que., May 5th, 1897. {Macoun.) 



599. P. pithyophila, TH. FR. 



On blue beech bark, Central Ontario Junction, Hastings Co., 

 Ont., Oct. 24th, 1893. (Macoun.) 



600. P. mamillana, (Acn.) TUCKERM. 



On bark of trees at Carleton Place, near Ottawa, Ont.; also on 

 trees at Shannonville, Hastings Co., Ont. (Macoun} 



601. P. fallacia, ECKFELDT. 



On young maple trees at Chelsea, Que., May 1 5th, 1894. 

 (Macoun} 



602. p. nitida, ACH. 



On bark, Rigaud Mountain, Vaudreuil Co., Que. (Rev. G. 

 Ducharme} Quite common on trunks, of beech trees at Ottawa 



