Arcpria. 105 



/3. sessihs. Sijorangia sessile on a broad base, scattered or 

 gregarious, capillitium orange, elastic. 



Ilemiarcyria serpula, Host,, Mon., p. 267, lifs. 200 227 228 • 

 Cooke, Myx. Brit, p. 68, figs. 200, 227, 228 ; Schroeterp' 115 ;' 

 Sacc, Syll., vii., pt. I., n. 1514; Raiink., Myx. Dan., p. 04, t. 8,' 

 f. 16 ; Mass, Rev. TricL, p. 357, f. 34. 



Exsicc.—FMcke\, Fung. Rhen., 2692 (as HemitricMa contorta 

 (Ditnj.) Rost.). 



On rotten wood, branches, leaves, &c. Britain (Carlisle; 

 specimen in Herb. Berk., from Sowerby's herbarium, no locality' 

 called To^ichia reticulata, undoubtedly British); Germany;' 

 Sweden; Belgium; Italy; United States; Cuba; St. Vincent,' 

 Bombay; N. W. Australia; New Zealand; Ceylon. 



Distinguished amongst the clear yellow species by the very 

 spiny elaters and the reticulate spores. The subglobose sessile 

 form has not, so far as I am aware, been met with in Britain, 

 but, although differing in habit and in the bright orange elastic 

 capillitium, agi-ees in the structure of the elaters and the spores. 

 The type of the form sessilis is in the herbarium of the Paris 

 Museum, and was collected in Cuba. 



(Rostafinski's Synonyms.) 

 Mucoo^ serpula, Scop. Fl. Carn., t. 65 (1772). 

 Lycoperdon lumhricak, Batsch., f. 174 (1786). 

 Trichia spongioides, Vill. Fl. Dauph., 1061 (1789). 

 Stemonitis hcmhricalis, Gmel. Sys., 1470 (1791). 

 Trichia orticidata, Pers. Disp., 10 (1797) ; Ic. and Desc, 1. 12, f 1 

 Trichia serjmla, Pers. Disp, 10 (1797); Eng. Fl, v., 320; 



Cooke, Hdbk, 1189. 

 Trichia serpula, /3 Sjwngioidcs, Pers. Syn., 181 (1801). 

 Trichia vcnosa, Schum. Saell, 1456 (1803). 

 Hyporhamma reticulatum, Corda Ic, v., 34 (1842). 

 Trichia rctiformis, Payer. Crypt., I 574 (1850). 



Arcyria clavata, ^lass. (fig. 124). 

 Sporangia varying from clavate to globose, ycUounsh, p)olishcd, 



