78 MYXOMYCETES. 



96. Peiicheena coxticalis. (BatseJt.j 



Sporangia globose, flattened, gregarious, standing on a common 

 hypothallus, splitting in a circumscissile manner with a deciduous 

 lid, in the typical form yellow-brown, now and then thickened with 

 deposits of lime, dull-grey or milky-white ; capillitium slightly 

 evident, with tubes '008-'025 mm. diam.; spores smooth, -018- 

 0125 mm.Etfki. Mon., 293. 



On bark. (Fig. 188.) 



Lycoperdon corticale,'BsLtach. El., p. 155 (1783). 



Sphcerocarpns sessilis, Bull., t. 417, f. 5 (1791). 



Trichia gymnosperma, Pers. Obs., vi., f . 1 & 2 (1796). 



Trichia circumscissa, Schrad. p. 19 (1797). 



Licea circumscissa, Pers. Syn., 196 (1801). 



Physarum luteo-album, Schum. Saell., 1430 (1803). 



Tubulina circumscissa, Poir. Ency., viii., 5 (1808). 



Perichmna populina, Fr. Gast., 12 (1817); Grev., t. 252 ; Eng. 

 Fl., v., 321 ; Cooke Hdbk., No. 1192. 



Perichcena popuiina, /3 sorbea, Weinm. in Fr. S. M., iii., 192 

 (1829). 



Periclicena quercina, Fries Gast., p. 12 (1817). 



Trichia varia subnifescens, Bong. Herb. 



Licea quercina, Wallr. Fl. Cry., 2103 (1833). 



Licea artocreas, B. & Rav. Fungi Car., ii., 82. 



Periclicena artocreas, B. & Hav. Grev., No. 370 (1873). 



97. Perichaena fusco-atra. (Sibth.} 



Sporangia obovate or globose, chestnut or blackish, splitting in 

 a truncate manner, with a very convex lid ; capillitium scarcely 

 evident, with tubes -0017 mm. wide ; spores waited, '0125--013 

 mm. diarn. Etfki. Mon., 294. 



On fir wood. 



Mucor lycoperdioides, Scop. Ann., iv., t. i., f. 11 (1772). 

 Trichia fuscoatra, Sibth. Fl. Ox., 1152 (1794). 

 Splicerocarpus sessilis, Sow., t. 258 (1803). 

 Licea circumscissa, (3 abietina, A. & S., p. 108 (1805). 

 Perichcena abietina, E'r. Gast., p. 17 (1817) ; Eng. Fl.,v., 321 ; 

 Cooke Hdbk., No. 1191. 



PerichcBiia microcarpa, Sauter. Rabh. DC, Fl., No. 2180 (1844). 



99. Pexichsena decipiens. /?. tt- Br. 



Sporangia aggregated, rounded, reddish-brown, circumscissile; 

 capillitium branched ; spores of two kinds, the larger -05 mm., the 

 smaller '025 mm. diam., bright -yellow. Ann. Nat. Hist., No. 

 1605, t. ix., tig. 3. 



On fir cones. 



