52 MYXOMYCETES. 



capillitium proceeding from the apical horn, as in the preceding 

 species, but less numerous. Rtfki. Mon. Supp., 29. 



On wood, &c. 



Enerthenema elegans,~Berk.& Br. Ann. N. H., No. 388, t. ii., f. 7 ; 

 Cooke Hdbk., No. 1164 (not Bowman). 



Family 8. AMAUROCHETACEJE. 



.^Ethalium consisting of numerous, elongated, entirely naked 

 sporangia, arranged close together in several layers ; along the 

 sporangia of the lower and middle stratum run the columellse ; the 

 columellag of the single sporangia grown together amongst them- 

 selves, and forming tree-like branches, grown to the base of the 

 Eethalium in several places ; sporangia of the middle and upper 

 stratum possessed of a capillitium, with the threads combined into 

 a net, common to all the sporangia ; the branchings of the net 

 dense, at the points of union expanded triangularly. Rtfki. Mon., 

 210. 



Genus 21. AMAUHGCK-ZETE. R. 



JEthalium very variable in form and size, covered with a delicate 

 papery bark; columella and capillitium very variable, evident 

 according to the height of the aethalium. Rtfki. Mon., 210. 



62. Amaurochaete atra. (.1. Sf S.) 



^thalium variable in form and size, covered with a delicate 

 papery bark ; columella and capillitium variable ; spores violet, 

 spinulose, '014-'015 mm. 



On wood and bark of felled pines. (Fig. G7.) 



Lycoperdon fith'ginosiim, Sow., t. 257 (1803). 

 Lycogala atrum, A. & S. Con., t. 3, f. 3 (1805). 

 Dermodium inquinans. Link. Diss., 25 (1808). 

 Stronyylium atru?n, Link. 



Strongylium atrum, Swaitz Vet. Handl., 110 (1815). 

 Strongylium majvs, Fr. Gast., 9 (1817). 

 Lachnobolus cribrosus, Fr. Orb. Yeg., 148 (1825). 

 Reticularia atra, Fr. 8. M ., iii., p. 86 (1829) ; Eng. Fl., v., p. 

 308; Cooke Hdbk., No. 1099. 



Family 9. BREFELDIACE^E. 



jiEthalium consisting of numerous, elongated, entirely naked, 

 close-standing sporangia, arranged in several strata ; along the 

 sporangia of the lower and middle strata run the columellae. C'olu- 

 mellse of the single sporangia coalescing, form tree-like branches, 

 grown to the base of the eethaliuni in many places ; sporangia of 



