July 1907] Index to North American Mycology 159 



Notes on New or Rare Species of Ravenelia. W. H. Long. 



Jour. Mycol. 12 :234-6. Nov. 1906. 

 Notes from Mycological Literature, XX. W. A. Kellerman. 



Jour. Mycol. 12:164-183. July, 1906. 

 Notes from Mycological Literature, XXL W. A. Kellerman. 



Jour. Mycol. 12:211-220. Sept. 1906. 

 Novelty from Minnesota [Whetstonia n. g.] C. G. Lloyd. 



Lloyd's Myc. Notes 22 :269-7o. July, 1906. 



Olive, Edgar W. Evidences of Sexual Reproduction in the 

 Slime Moulds. [Abstract.] Science N. S. 25:262. 15 Feb. 

 1907. 



Origin of the Hymenium in some Geoglossaceae. [Abstract.] 

 E. J. Durand. Science N. S. 25:262. 15 Feb. 1907. 



Orton, W. a. Disease Resistance in Watermelons, A Study of. 

 [Abstract.] Science N. S. 25:288. 22 Feb. 1907. 



Orton, W. A. The Plant Disease Survey of the United States. 

 [Abstract.] Science N. S. 25:268. 15 Feb. 1907. 



Pathology of the Rice Plant. [Abstract.] Haven Metcalf. 

 Science N. S. 25:262. 15 Feb. 1907. 



Peach Blight from California, see New Peach . 



Pear-blight, A New Native Host for. [Abstract.] M. B. 

 Waite. Science N. S. 25 :286. 22 Feb. 1907. 



Peck, Charles H., Report of the Botanist 1905. N. Y. State 



Mus. Bull. 105 (Bot. 9) :4-io6. PL S, T, 94-103. Aug. 



1906. 

 Peck, Charles H. A New Species of Galera [G. kellermani]. 



Jour. Mycol. 12:148. July, 1906. 

 Peppermint, see Mentha piperita. 

 Peridermium acicolum the Aecial Stage of Coleosporium solid- 



aginis. [Abstract.] G. P. Clinton. Science N. S. 25 :289. 



22 Feb. 1907. 

 Peridermium coloradense (Dietel) Arth. & Kern n. n. [Aecid- 



ium coloradense Dietel], on Picea engelmanni (Parry) 



Englm. and Picea mariana (Mill.)B.S.P. (Abeis nigra Desf.) 



Bull. Torn Bot. Club, 33 :426. Aug. 1906. 



Peridermium conorum-piceae (Rees) Arth. & Kern n. n. [Ae- 

 cidium conorum-piceae Rees ; Peridermium conorum Thuem. ; 

 Peridermium engelmanni Thuem. ; Aecidium engelmanni 

 Dietel), on cones of Picea mariana (Mill.) B.S.P. (Abies 

 nigra Desf.) ; Picea rubra (Lamb.) Link (Picea rubens 

 Larg.) ; Picea canadensis (Mill.) B.S.P. (Picea alba Link) ; 

 Picea engelmanni (Parry) Englm.; Picea excelsea L. Bull. 

 Torr. Bot. Club, 33:431. Aug. 1906. 



