1914] 
BURT—THELEPHORACE® OF NORTH AMERICA. I 219 
18. T. terrestris Ehrh. ex Fries, Syst. Мус. 1: 431. 1822. 
Plate 5. fig. 10. 
T. terrestris Ehrh. Crypt. Exsiec. No. 178. 1785.-Persoon, 
Syn. Fung. 566. 1801; Myc. Eur. т: 113. 1822.—Stereum lacin- 
таит Pers. Obs. Myc. т: 36. 1796.- T helephora laciniata Pers. 
Syn. Fung. 567. 1801.-T. caryophyllea 8 laciniata Pers. Myc. 
Eur. 1: 112. 1822.-T. laciniata Fries, Syst. Мус. т: 431. 1821. 
Illustrations: Batsch, Elenchus Fung. pl. 24. f. 121.-Nees, 
System der Pilze pl. 34. f. 251.-Bolton, Hist. Fung. pl. 173.— 
Sowerby, Col. Fig. of Eng. Fungi pl. 213.-Cooke, Handbook 
I: 310.-Stevenson, Brit. Hym. 2: 2061.-Smith, Brit. Basid. 
399. f. 96 С-Е. 
Fructifications dark fuscous to fawn-color, coriaceous-soft, 
cespitose, obconic, with a short stem-like base, or dimidiate and 
sessile, or incrusting and effuso-reflexed; pileoli more or less 
imbricated, sometimes laterally confluent, fibrous-squamulose 
and usually strigose, thin, margin fibrous-fimbriate and lacin- 
iate; hymenium inferior, papillose, fuscous to fawn-color; spores 
pale fuscous, irregular, angular, sometimes slightly tuberculate, 
6-9 x би. 
Clusters 5-8 cm. in diameter, with single pileolus about 3 cm. 
long and broad; obconic pileus 2-3 ст. in diameter; dimidiate 
pileolus 13-2 em. long, 2-3 cm. broad, about 1 mm. thick. 
On sandy ground in bare fields and at base of trunks and 
from fallen twigs and leaves in pine woods. Canada to South 
Carolina, and in Michigan, Jamaica, and Alaska. July to De- 
cember. 
My observations of this species acquired from specimens 
received and from seeing it growing abundantly near Middle 
Grove, N. Y., seem to show that the medium from which this 
fungus derives its food produces an interesting effect on the 
fructification. Growing from bare, sandy ground the fructifica- 
tions are dark fuscous in color, and may be flattened clusters of 
imbricated pileoli, or of the obconic-pileus type composed of 
ascending pileoli confluent laterally, or dimidiate, sessile pileoli. 
When growing on abundant woody matter, as is the case in the 
specimen in Sowerby’s illustration already cited, the fructifica- 
tion assumes à redder color and replaces its dimidiate, sessile 
pileus on earth by a reflexed one on the wood. With regard to 
