5o6 BRITISH FUNGI 



sunken-in base, hard when dry ; asci elhptical to subglobose ; 

 spores elliptical or subglobose, with a large-meshed, deep network, 

 yellowish brown, 35-53x30-40 ji. 



Readily known by the minutely wrinkled or warted ascophore 

 having a deep depression at the base. Smell strong, resembling 

 radishes. 



Underground in woods. 



T. dryophihim. — Ascophore globose, usually regular in form, 

 even, at first white and downy, becoming smooth and brownish 

 violet, variegated with violet, .]-i J in. diam. ; gleba reddish brown 

 or purple-brown, with whitish dissepiments springing from \-arious 

 parts of the wall ; asci 2-4-spored ; spores broadly elliptical, 

 orange-brown, netted, mesh rather large and deep, 40-45 x 20-30 il 



Known by the even wall of the ascophore, purplish gleba, and 

 large elliptical spores. Smell weak, not unpleasant. 



Underground under oaks and poplars. 



T. rapcBodonim. — Ascophore globose or irregular in shape, 

 smooth, tinged yellow with whitish spots corresponding in position 

 to the dissepiments in the gleba, |-i in. diam. ; gleba white, then 

 brownish with a few white dissepiments ; asci subglobose or 

 obovate, with 1-4 spores ; spores elliptical, netted, mesh large and 

 somewhat elongated in the direction of the long axis of the spore, 

 shallow, 35-55 X 24-30 ji. 



Smell strong, resembling radishes. The size of the spores varies 

 considerably, depending on the numb-er present in an ascus. 



In sandy soil under trees. 



T. puherulum.- — Ascophore subglobose, somewhat lobed, pinkish 

 brown, covered with short, erect down, often cracked, |-2 in. 

 diam. ; gleba with whitish dissepiments radiating from the base ; 

 asci subglobose ; spores globose or subglobose, orange-brown, 

 netted, mesh not very large, but deep, 35-45 n- diam. 



Clearly distinguished by the downy surface of the ascophore, 

 through which the j^inkish brown colour shows. 



In sandy ground, 



** Wall of spores icuirted or spinulose. 



T. hrumale. — Ascophore subglobose, generally regular in outline, 

 reddish violet, then black, rough with polygonal warts having the 

 apex excavated and crested with points, 1-4 in. diam. ; gleba 

 greyish black with a violet tinge, traversed by branched, whitish 

 dissepiments ; asci numerous, subglobose or broadly elliptical, 

 3-6-spored ; spores elhptical or elliptic-oblong, yellowish brown, 

 spinulose ; spines slender, 20-30 X 15-20 /i. 



Known amongst species with spinulose spores by the large poly- 

 gonal warts on the wall of the ascophore. Edible. Smell strong. 

 Sometimes larger than the measurements given. 



Underground under trees, etc. 



