Dictydium.] FUNGI. 317 



89. STEMO^'^TIs. Gled. Stemonitis. 



Peridium. membranaceous, exceedingly fugacious. Capilli- 

 iium reticulated, growing on the penetrating stem. — Name, 

 HTYifiw, a stamen, 



1. >S'. fiisca, Roth, (brown Stemonitis) ; fasciculate, hypo- 

 thallus persistent, peridia very fugacious cylindrical as well as 

 the capillitium, sporidia black-brown. Fr. Syst. Myc. v. 3. p. 

 157.— 'S.fasciciilaia, NeesJ. 118. Grev, FL Ed. p. 454. Sc. 



Crypt. FL t. 170 Trickia nuda, With. v. 4. p. 364. Sow. t. 



50. Part. 2 S)' 3. w. 1110 Clathrus nudus, Linn. Sp. PL 



1649. BoU.t 93./. 1. 



On rotten wood. Very common In the present genus the stem 



absokitely penetrates the peridium, which, as far as I have seen, is not 

 tJie case in those Didymia, &c., which have an apparently stipitate 

 cokmiella, there being always a portion of the peridium closely attached 

 to the entering portion of the stem, and in consequence there is beneath 

 a more or less apparent umbilicus as the union between the stem and 

 peridium is less or more intimate. St. ferruginea^ figured by Bidl. f. 

 ^11. f. 1, a very nearly allied species, is distinguished by its smaller 

 differently coloured sporidia. And there is jet another nearly allied 

 species, S. typhoides. Bull, with small sporidia to which Withering 

 refers his JV-. nuda, var. 2. 



2. S. ovdta, Pers. (ovate Stemonitis) ; scattered, peridium 

 ovate very fugacious at length steel-blue, capillitium purplish, 

 sporidia brown, stem not reaching the apex. Pers. Syn. p. 



189. Fr. Syst. Myc. v. 3. p. 160 Trichia alba, Sow. t. 259. 



— Mucor Embolus, Linn. Suec. n. 1288. 



On rotten wood, inside of wainscoting, &c. Not uncommon. 



3. S. obtusdta^ Fr. (obtuse Sleinonitis') ; scattered, peridium 

 globose fugacious at length black, capillitium black-brown, stem 

 slightly penetrating. Fr. Syst. Myc. v. S. p. 160. 



On \Nood. Apethorpc, Norths. Jicv. 3L J. Berkeley.— At first 

 white, then ruddy-brown. 



4. S. papilldta, Pers. (papillary Stemonitis); peridium glo- 

 bose very fugacious at lengtli cinereous, apex papillary from the 

 excurrent stem, capillitium and sporidia black- brown. Pers. 

 Disp. t. \.f. 4. Syn. p. 188. Greu. FL Ed. p. 456. Fr. Syst. 



Myc. V. 3. p. 610 Enerthencma elcganSy Bowm. Linn. Tr. v. 



16.;;. 151. t. 16. 



On rotten wood. Near Edinburgh. Captain Wauch. Erthlg 

 near Wrexham, Dcnb. j\Ir. Bowman. — Thcplantof thelattergcntleman, 

 of which 1 have unfortunately seen but imperfect prematurely dried 

 specimens, is, 1 believe, the true species of Pcrsoon. Fries, hoAvcvcr, 

 has instrtcd the genus Enerthencma as distinct in his Tnd. Alph., and 

 does not appear to suspect any afiinity with the Stemonitis before ua. 



90. Dictydium. Schrad. Dictydium. 

 Peridium very delicate, persistent; capillitium innate, forming 



