OLIVE. — PRELIMINARY ENUMERATION OP THE SOROPHORE^E. 343 



Saprophytic or parasitic organisms living on dung, or on alga? in fresh 

 or salt water. 



LABYRINTHULA Cienkowsky (1867). 



Amoeba? spindle-shaped, colorless, or colored by means of yellow fat 

 bodies. Spores borne in formless masses, producing one to four amoeba? 

 at germination. 



The species of this genus have thus far been observed only by the 

 authors cited. 



Labyrinthula vitellina Cienkowsky. 

 Archiv. f. mikros. Anat., III. p. 274, Taf. 15-17. 1867. 



Amoebae containing orange-red coloring matter, which turns blue with 

 iodine. Spores oval or spherical, 12^ in diameter, producing four amoeba? 

 at germination. 



Living on sea-weeds growing on piles in Odessa harbor, Russia. 



Labyrinthula macrocystis Cienk. 

 Archiv. f. mikros. Anat., III. p. 274, Taf. 15-17. 1867. 



Colorless or feebly yellowish. Spores spindle-shaped, 18^-25^ long, 

 imbedded in a hyaline substance ; the contents producing four amoeba? 

 at germination. 



Living on alga? growing on piles at a higher elevation than L. vittelina, 

 only submerged by the surf. Russia. 



Labyrinthula Cienkowskii Zopf. 

 Beitriige zur Pliys. u. Morph. niederer Organismen, II. p. 36-48, Taf. IV, V. 1892. 



Sori colorless, naked. Spores at germination producing only one or 

 at most two amoeba?. 



Living in fresh water, parasitic on Vaucheria. Germany. 



DIPLOPHRYS Barker (1868). 



Amoeba? spindle-shaped or nearly spherical, with yellowish oil globules. 

 Fructification (in D. stercorea) a definite stalked or sessile sorus. 



Diplophrys Archeri Barker. 

 Quart. Jour. Mic. ScL, VII. p. 123. 1868. 



Individuals nearly spherical or broadly elliptical, 4^-5^ in diameter, 

 bearing at almost opposite poles a tuft of filiform pseudopodia ; the pro- 



