1 1 44 AQUA TIC PH YCOM YCETES 



Pavillard, J. 1910. £tat actuel de la protistologie vegetale. Progressus Rei Bot., 

 3 (3): 474-544. 



Pendergrass, W. R. 1948. A new member of the Plasmodiophoraceae. J. Elisha 

 Mitchell Sci. Soc, 64: 132-134, pi. 15. 



1950. Studies on a plasmodiophoraceous parasite, Octomyxa brevilegniae. 



Mycologia, 42:279-289, 29 figs. 



Perez, Ch. 1903. Sur un organisme nouveau, Blastulidium paedophthorum, para- 

 site des embryons de Daphnies. C. R. Soc. Biol., 55:715-716, figs. A-E. 



1905. Nouvelles observations sur le Blastulidium paedophthorum. Ibid., 58: 



1027-1029, 2 figs. 

 Perroncito, E. 1888. Chytridium elegans, n. sp., eine parasitare Chytridinee aus 



der Classe der Raderthiere. Centralbl. f. Bakteriol., Parasitenk. u. Infektions- 



krankh., 4: 295. 

 Perrott, P. E. [Thomas]. 1955. The genus Monoblepharis. Trans. Brit. Mycol. 



Soc, 38:247-282, 17 figs, pis. 9-13. 



Petersen, H. F. 1903. Note sur les Phycomycetes observes dans les teguments 

 vides des nymphes de Phryganees avec description de trois especes nouvelles 

 de Chytridinees. Journ. de Botanique, 17:214-222, 17 figs. 



1905. Contributions a la connaissance des Phycomycetes marins (Chytri- 



dineae Fischer). Oversigt Kgl. Danske Vidensk. Selskabs. Forhandl., 1905 

 (5): 439^188, 11 figs. 



— 1906. Om Forekomsten af Coenomyces consuens i Danmark. Bot. Tids- 

 skrift, 27: xxii-xxiii. 



— 1909. Studier over Ferskvands-Phycomyceter. Bidiag til Kundskaben om 

 de submerse Phykomyceters Biologi og Systematik, samt om deres Udbredelse 

 i Danmark. Ibid., 29 (4): 345-440, 27 figs. (English abstract.) 



1910. An account of Danish freshwater Phycomycetes, with biological and 



systematical remarks. Ann. Mycologici, 8:494-560, figs. I-XXVII. 



Pethybridge, G. H. 1913. On the rotting of potato tubers by a new species of 

 Phytophthora having a mode of sexual reproduction hitherto undescribed. 

 Sci. Proc. Roy. Dublin Soc. (N. S.), 13: 529-565, pis. 42^14. 



and Lafferty, H. A. 1919. A disease of tomato and other plants caused 



by a new species of Phytophthora. Sci. Proc. Roy. Dublin Soc. (N. S.), 15: 

 487-505, pis. 45-47. 



Pfitzer, E. 1870. Ober weitere Beobachtungen . . .auf Diatomaceen parasitischen 

 Pilze aus der Familie der Chytridieen. Sitzungsber. Niederrhein. Gesell. 

 Natur- und Heilkunde (fur 1869) (in Verhandl. Naturhist. Vereins Preuss. 

 Rheinl. u. Westphalens.), 27:62. 1870. 



- 1873. Ancylistes closterii. Monatsber. Berlin Akad., 1872: 379-398, 15 

 fig?. 



Pieters, A. J. 1915. The relation between vegetative vigor and reproduction in 

 some Saprolegniaceae. Amer. J. Bot. ; 2:529-576, 2 figs. 1916. 



