476 Bulletin 315 



gives dimensions of yeast-like cells as lo-aoju long by 2-10/1 in diameter, 

 and aerial hyphaj 50-200/x long by 2-iofx wide. Our form, as already 

 observed, does not quite agree with these measurements. 



Hab. Isolated from soil of oat field, July, 19 10, Cornell University, 

 Ithaca, N. Y., by the writer. 



Actinomyces No. 1076b Hagem, Einige Beobachtungen iiber die Vcr- 

 breitung der Actinomycetes in der Natur. Vid.-Selsk. Skr. I, Math.- 

 Naturv. Klasse No. 7, 202. 19 10. 



Macroscopic appearance, only, is given and is as follows: Grows well 

 at ordinary room temperature. Isolated from same soil and same sample 

 as 1076a. It is distinguished from this by its dark gray colonies, with 

 zonate aerial mycelium that is of a gray-white or frequently reddish 

 white color. 



Hab. Isolated from forest soil, Norway, Hagem. 



Actinomyces No. 1076a Hagem, Einige Beobachtungen iiber die Ver- 

 breitung der Actinomycetes in der Natur. Vid.-Selsk. Skr. I, Math.- 

 Naturv. Klasse No. 7, 202. 1910. 



Macroscopic appearance, only, is given and is as follows: Thrives 

 rather well on wort-agar and at ordinary room temperature. The colonies 

 are dirty wax-yellow and strongly folded, or plaited. Aerial mycehum 

 does not form. 



Hab. Isolated from forest soil, Norway, Hagem. 



Actinomyces No. 1075 Hagem, Einige Beobachtungen uber die Ver- 

 breitung der Actinomycetes in der Natur. Vid.-Selsk. Skr. I, Math.- 

 Naturv. Klasse No. 7, 202. 1910. 



Macroscopic appearance, only, is given and is as follows: Grows very 

 well on wort-agar and only with ordinary temperature relations (ordinary 

 room temperature or up to 20-25° C.). The colonies form great masses of 

 dirty-gray aerial mycelium. Thrives well on filter paper to w^hich has 

 been added ammonium phosphate and inorganic nutrient salts. Digests 

 and uses the cellulose of the filter paper. 



Hab. Isolated by A. E. Traaen from mud at the edge of a meadow 

 (Schamm einer Uferweise). Hagem, 1. c. 



Actinomyces No. 1074 Hagem, Einige Beobachtungen iiber die Ver- 

 breitung der Actinomycetes in der Natur. Vid.-Selsk. Skr. I, Math.- 

 Naturv. Klasse No. 7, 202. 1910. 



Macroscopic appearance, only, is given and is as follows: Grows very 

 well on ordinary wort-agar (wiirzagar). The colonies are somewhat 

 plaited, or folded, and form rich masses of gray-white aerial mycelium. 

 This fungus thrives well at ordinary room temperature, and at blood 

 heat germinates but poorly. 



Hab. Isolated twice from forest soil, Norway, Hagem. 



