Holhuid : Economic Fungi. 



119 



Polyporus tuberaster{Fr.). Germany and Italy, in mountainous 

 districts, and cultivated in Naples on a sort of Tufa stone 

 i^Pietra fiinghnia). Edible, but not hig-hly recommended. 



Polysaccum crassipes (DC.)- Southern Europe and Australia. 

 \'ields a yellow dye. 



Saccharomyces Cerevisias (Meyen.). Cultivated on saccharine 

 fluids. Common yeast. Largely used for brewing- and 

 making bread. Known generally for the latter purpose as 

 'barm.' Dried German yeast is imported largely from 

 Germany and Holland. 



Sparassis crispa (Fr.). Europe and Carolina. In Pine forests, 

 etc. Edible. Eaten in Austria. 



Streptococcus phosphoreus (Trev.). 'Cultivated in a suitable 

 medium in one to two litre flasks, sufficient light is pro- 

 duced to see the time by a watch, or to read a thermometer 

 at a distance of one or two metres. On a clear night the 

 light from such a culture is visible up to a distance of over 

 60 paces. It has been suggested that similar cultures might 

 be employed in the place of lamps in places where things 

 of an inflammable nature are kept — powder magazines, etc' 

 (Pharm. Jour., 30th May 1903, p. 755). 



Terfezia Leonis (Tul.). Italy, France, Sardinia, North Africa, 

 Asia Minor, Syria, and Britain. Underground. Edible. 

 ' In Rome an underground fungus belonging to the Tuber- 

 acea,*, has long been known only in close proximity to 

 HeJiauthcmiDii guitahim." R. Pirotta and A. Albini find 

 that the peculiar appendages to the root of this plant are 

 infested with a mycorhizal mycele, which is in organic con- 

 nection with the receptacles of " Terfezia " ' (Royal Micros. 

 Jour., June 1901, p. 311. 



Tricholoma gambosum (Fr.). Britain, France, and Italy. On 

 the ground, in pastures, etc. St. George's Mushroom. 

 Highly esteemed as an article of food ; and when dried has 

 been known to realise as much as 15s. per lb. 



Tricholoma personaium (Fr.). Europe. In woods, on the 

 ground. Edible. 



Verpa digitaliformis (Pers.). Nearly all parts of the Continent 

 of Europe and Britain, and North America. On the ground. 

 Sold in the Italian markets. Edible, but not very desirable. 

 I have to thank Mr. Massee for further assistance, and Major 



Winn Sampson for numerous references to the microscopic 



forms. 



1904 April 1. 



