52 
Mas see. — A Monograph of 
at the apex, lobes subequal, mass of spores umber with a 
purple tinge, trama whitish, spores globose, coarsely warted 
12-16 [i diam. 
Scleroderma ge aster, Fries, Syst. Myc. iii, p. 46 ; Quel., 
Enchirid. p. 243 ; Sacc., Syll. vii, p. 138. 
Exs. — Thum., Myc. Univ. 608 ; Rav., Fung. Carol. 4. 
In sandy places. Rare. Hereford! — Europe; United 
States. 
Readily recognised by the thick peridium splitting at the 
apex in a stellate manner when mature. 
POLYSACCUM, D. C. 
Peridium irregularly globose, corky, attenuated downwards 
into a more or less elongated stem-like base ; gleba consisting 
of numerous cavities containing peridiola. Dehiscing by an 
irregular rupture at apex of peridium. 
Polysaccum, D. C., in Desp. and Rapp. Voy. Bot. i, p. 8 ; 
FI. Fr., v. p. 103 ; Sacc., Syll. vii, p. 146. 
Pisolithus , A. and S. ; Pisocarpium, Lk. ; Poly era, Ficin. ; 
Scleroderma sp. of various old authors. 
Related to Scleroderma, but readily distinguished by the 
presence of distinct peridiola. 
Polysaccum pisocarpium, Fr. (Fig. 53). Peridium sub- 
globose, passing downwards into a short stem-like base. 
Peridiola large, irregular, angular, 4-5 x 2-3 mm., yellow ; 
spores spherical, warted, coffee-colour, 9-13 /x. 
Polysaccum pisocarpium, Fr. ; Krombh., Heft 8, p. 20, 
taf. lx, f. 9, 10. Dietr., Deutsch. FI. (Schwamme), pi. 118 ; 
Winter, Krypt. FI. p. 890 ; Mass., Rev. Polysaccum , Grev. v, 
16, p. 28 ; Sacc., Syll. vii, p. 148. 
Polysaccum acaide , D. C., Rapp, de Voy. ii, p. 80 ; FI. 
Fr. vi, p. 103. 
Polysaccum arenarium, Corda, Ic. Fung, ii, pp. 24, 25, 
tab. xii, f. 91. 
Polysaccum olivaceum, Fr., S. M. iii, 54. 
Polysaccum idiferum , Seer., Myc. Suisse, iii, p. 373. 
