MYXOMYOETES. 



23 



Genus 7. LEOCARPUS. (Linli.) 



Sporangia irregularly splitting, with double walls ; inner wall 

 surrounding the mass of spores on all sides, and giving origin to 

 the capillitiuui ; outer wall tliick, passing down to the stein or 

 hypothallus. Tubes of the capillitiuin formed into a tliick net, the 

 greater part of the knots weakly developed, rilled with air, the rest 

 very much swollen, and changed into granules of lime. Rtfki. 

 Mon., 132. 



18. Leocarpus fragilis. (Dicks.} 



Sporangia obovate, or somewhat roundish, sessile, or with a thin 

 thread-like, coloured, rising stem ; bright, shining, containing 

 coloured granules of lime ; spores dull violet, spinnlose, '012-'0148 

 nim. Rtfki. Mon., 132. 



On grass, twigs, moss, &c. (fig. 93). 



Lycnperdon fragile, Dicks. Cry., t. Ill, f. 3 (1785) ; Sow., 1. 136. 



Reticularia fragilis, Poir. Uncy. 



Lycoperdon parasiticum, With. AIT., iv., 379 (1792). 



Diderma vernicosum, Pers. Obs., t. Ill, f. 7 (1790') ; Fl. Dan. 

 t. 1312, f. 2 ; Eng. Fl., v., 311 ; Cooke, Hdbk., No. 1108. 



Trichia lutea, Trent., p. 230 (1797). 



Diderma vernicosum, j3. parasitica, Pers. Syn., 165 (1801). 



Physarum nitidum, Schurn. Saell., 1451 (1803). 



jP/iysarum vernicosum, Schum. Saell., 1452 (1^03). 



Leocarpus vernicosus, Link. Obs., i., 25 (1809) ; Nees., f. 100; 

 Grev. S. C. Fl., Ill ; Corda., v., f. 32. 



Leocnrpus spennoides, Link. Obs., i., 25 (1809). 



Leocarpus atrovirens, Fr. Gast., p. 13 (1817). 



Leung turn vernicosum, Fr. Strip. Feinj., 83 (1825). 



Leangium atrovirens, Fr. Stirp., 83 (1825). 



Diderma atrovirens, Fr. S. M , iii., 103 (1829). 



Tripotricliia elegans, Corda. Ic.. i., f. 288A (1837). 



Genus 8. FULIGO. Hull. 



Variable in size, deformed, diversely coloured, aBthalium com- 

 pouiuled of variously entangled vein-like sporangia, with but little 

 cohesion; central stratum tilled with spores and capillitiuin, outer 

 empty, not always developed into a cortex, containing plentiful 

 deposits of lime ; inferior stratum joined to the pelliculose hypo- 

 thallus ; capillitiuin strongly developed, containing angularly irre- 

 gular, but not numerous, granules of lime. litfki. Mon,, 134. 



19. Fuligo varians. (Somntf.) 



Sporangia more or less closely interwoven, bark not always de- 

 veloped ; walls of sporangia usually coloured ; capillitiuin strongly 

 developed, containing (not numerous) granules of lime in ine- 

 gular angular masses ; spores dull-violet, smooth, '0075-'01 mm. 

 Etfki. Mon., 134. 



