LYCOGALALES 233 



capillitium of cortical origin, consisting of irregular lobate or branch- 

 ing tubules, varying much in width, and marked by numerous cor- 

 rugations, irregular warts or bands; spores minute, ashen or pallid. 

 This order includes but a single genus, — 



Lycogala Micheh. 



1729. Lycogala Micheli, Nov. Plant. Gen., pp. 216, 217. 



1753. Lycoperdon Linn. Syst. Nat., in part. 



1794. Lycogala Persoon, Romer, N. Bat. Mag., p. 87. 



Micheli's description and figures, Nov. Plant. Gen., pp. 216, 217, 

 Tab. 95, leave no doubt but that this illustrious man had species 

 of Lycogala before him when he described the genus. His figure 

 1, no doubt portrays the second species in our present list. More 

 recent writers, from Persoon down, have used Micheli's designa- 

 tion, but differed in regard to the limits to which the name should 

 be applied. It is here used substantially as in 1729. Fries and, 

 after him, Rostafinski make a mistake in quoting Retzius as writing 

 Lycogala (1769). Retzius wrote Lycoperdon sessile; Kongl. Veten- 

 skaps Acad. Handling, for Ar 1769, p. 254. 



Key to the Species of Lycogala 



A. iEthalia irregularly globose. 



a. Cortex minutely roughened or warted ; about 12 mm. in 



diameter 1. L. epidendrum 



b. Cortex smooth, size large . . . . 2. L. flavo-fuscum 



c. Cortex rough ; diameter 6 mm. or less . . 3. L. exiguum 

 B. ^thalia conical 4. L. conicum 



1. Lycogala epidendrum (Buxb.) Fries. 



1721. Lycoperdon epidendron, etc., Buxb., En. PI. Hal, p. 203. 



1753. Lycoperdon epidendrum Linn., Sp. PL, p. 1184. 



1829. Lycogala epidendrum (Buxb.) Fries, Syst. Myc. IIL, p. 80. 



^thalia solitary or clustered, depressed spherical, or, when crowd- 

 ed, irregular, olivaceous or blackish, minutely warted, 3-10 mm. in 

 diameter, dehiscing irregularly, but more often near the apex ; perid- 

 ium thin, but tough and persistent, made up of numerous agglutin- 

 ated tubules enclosing in their meshes peculiar cell-like vesicles; cap- 

 illitium parietal, consisting of long, branching, and anastomosing 



