46 MYXOMYCETES. 



originating from numerous places on its surface the threads of 

 the capillitium, which are branched and combined into a net; 

 sporangium always simple. Rtfki. Mon., 193. 



Genus IT. STEMONITIS. Gled. 



Sporangia cylindrical, shortly stipitate, gregarious ; hollow 

 stem lengthened in the centre, attenuated upwards as a columella; 

 capillitium formed of numerous threads radiating from the colu- 

 mella, combined into a loose net, the ultimate branches united into 

 a network at the surface, parallel to the walls of the sporangium, 

 extended and combined by the help of very short, delicate per- 

 pendicular (to the net) ends. Rtfki. Mon., p. 193. 



52. Stemonitis fusca. Roth. 



Sporangia cylindrical, obtuse, standing on a strongly developed 

 hypothailus ; columella approaching the apex of the sporangium ; 

 iiypothallus, stem, columella, capillitium, and mass of spores 

 violet-black; surface of the net of the capillitium with the meshes 

 very small, less, or little larger than the spores ; spores bright 

 violet, almost smooth, -0066-'0092 mm. diam. Rtfki. Mon., 193. 



. major. Sporangium, with stem 7-12 mm. high. 

 /3. minor. Sporangium, with stem 4-7 mm. high. 



On rotten wood. (Fig. 40.) 



Lycoperdon capite cylindracea, Rupp. Jenn., 304 (1718). 



Cluthroidastrum obscurum., Mich., t. 94, f. 1 (1729). 



Embolus nigerrimus, Hall, t. 1, f. 1 (1742). 



Clathrus nudus, Linn. Fl. Suec., 1263 (1745). 



Stemonitis /, Gled, Meth., 141 (1753). 



Embolus, Hall, 2137, t. 48, f. I (1768). 



Tubulifera cremor, Fl. Dan., t. 659, f. 1 (1777). 



Tremellatyphina, Willd. Fl. Ber., 420 (1787). 



Mucor araneosus, Jacq. Misc., t. 15 (1778). 



Stemonitis fusca, Roth. Mag. Bot., p. 26 (1782) ; Ehr. Ber., f. 

 5 ; Grev. S. C. Fl., t. 170; Corda Ic., ii., f. 87 ; Eng. Fl., v., 

 317 ; Cooke Hdbk., 1155, fig. 132, Fung. Britt., ii., 522. 



Tricliia nuda, With. Arr., iv., 477 (1792). 



Stemonitis fasciculate^ Pers. Syn., 187 (1801). 



Stemonitis typhoides, Auct. 



53. Stemonitis ferruginea. Ehr. 



Sporangia cylindrical, obtuse, gregarious, standing on a strongly 

 developed hypothailus ; columella cleaving the apex of the spor- 

 angium, with a few threads of the capillitium ; hypothailus, stem, 

 columella, and capillitium violet-black, but the mass of spores 



