TULOSTOMA. 41 



siabglobose, sessile, peristome indetermiuate, piloso-fimbriate ; 

 spore-mass blackish umber ; spores globose, minutely warted, 

 3—4 fjL. 



Geaster fimbriatus, Berk., Outl., p. 300, pi. 20, f. 4 (peristome 

 not correctly represented); Cke., Hdbk., n. 1075; Mass., 

 Mon. Gast., p. 81, f. 77. 



On the ground. From 1-2 in. across when expanded. 

 The number of segments into which the endoj)eridium splits 

 varies from 5-15 in different individuals, and these remain 

 spread out almost flat. 



Geaster hygrometricus. Pers. (fig. 2, p, 28.) 

 Exoperidium split into a varying number of acute lobes, 

 which are rigidly inflexed when dry ; endoperidiiim sessile, 

 usually depressed, subreticulate, rarely smooth, dehiscing by 

 an irregular, small apical month ; spore-mass dark brown ; 

 columella obsolete ; spores globose, warted, 7-10 fx. 



Geaster hygrometricus, Cke., Hdbk., n. 1078; Mass., Mon. 

 Gast., p. 83, f. 70. 



On the ground. Exoperidium hygroscopic, segments rigidly 

 incurved when dry, 2-2>}^ in. across when expanded. Opening 

 of endoperidium irregular, without a defined peristome ; in this 

 respect resembling some species of Lycoperdon. Distinguished 

 from G. fimbriatus, where the mouth is also indeterminate, in 

 the incurved segments and the much larger spores. 



TULOSTOMA. Pers. (emended), (figs. 3, 4, p. 28.) 



Peridium consisting of two layers, the outer deciduous, 

 inner persistent, dehiscing by a small apical opening, 

 columella absent ; capillitium present, threads septate, 

 swollen at the septa. 



Tulostoma, Pers., Disp., p. 6 ; Mass., Mon. Gast., p. 85. 



Kesembling a Lycoperdon with a long slender stem, dis- 

 tinguished by a groove between the apex of the stem and 

 the septate threads of the capillitium. 



Tulostoma mammosum. Fr. (figs. 3, 4, p. 28.) 

 Peridium subglobose, smooth, mouth small, prominent, 

 entire ; stem thin, ei[ual, more or less squamulose ; s})orc- 

 mass dirty cinnamon ; threads of capillitium colourless, thick- 



