Dearness: North American Fungi 



351 



17. Calvatia cretacea (Berk.) Lloyd, Myc. Notes 650, f. 929. 



1917 



Lycoperdon cretaceum Berk., Jour. Linn. Soc. 17 : 18, 1878. 



Peridium subglobose, 4-5 cm., the prominent warts of the 

 upper cortex gradually reduced on sides and base to a granular 

 or pruinate layer ; sterile base shallow, radicating ; spores echinu- 

 late, average 6.2 capillitium olive-brown, 12/x thick, branches 

 much smaller (6/x). 



Collected on the Can. Arc. Exped., 191 3-' 16, on tundra slopes 

 of the Mackenzie Delta (O'Neill), and on Herschell Island and 

 around Coronation Gulf. F. Johansen. 



This would seem to be a common species in the tundra near 

 70 0 N. Lat. The spores show that it cannot be C. coelata Bull, 

 which it otherwise approaches. The likely supposition that it 

 might be C. arctica F. & W. was rejected on comparison with the 

 details of warts, capilHtium, basidia and spores given in the fine 

 plate in Meddelelser om Groenland 43. I referred a description 

 under the MS. name C. borealis to Mr. C. G. Lloyd who fortu- 

 nately had examined and photographed Berkeley's imperfectly 

 described Lycoperdon crustaceum collected in the Nares' Expedi- 

 tion. This with material from Lapland, per Thore C E. Fries, 

 enabled him to establish the above determination. 



18. Phyllosticta brunnea Dearn. & Barth. sp. nov. 



Spots ashy but receiving a brownish cast from the numerous 

 pycnidia; immarginate, .5-1 cm. in diameter. Pycnidia epiphyl- 

 lous, reddish-brown, very numerous, crowded, depressed, 90-1 50/*. 

 Conidia hyaline, oblong, 4-6 X .75—1 



On languishing, yellowish leaves of Populus angustifolia Jas., 

 Montrose, Colo., Oct. 1912. E. Bartholomew 5001. There are 

 also on all the leaves darker, more opaque, sterile spots. Type 

 collection, Fungi Columb. 5040. 



19. Phyllosticta smilacina (Peck) comb. nov. 

 Sphaeropsis smilacina Peck, Ann. Rep. N. Y. State Mus. 33 : 24. 

 1883. 



Phoma smilacina (Peck) Sacc. Syll. Fung. 3: 160. 1884. 

 Marcophoma smilacina (Peck) Berl. & Vogl. Sacc. Syll. 10: 205. 

 1892. 



