DEMATIEI. 



579 



1736. Acrothecium simplex. Berh. " Simple Acrothecium." 



Flocci simple, flexnous, irregular, septate, brown ; spores few, 

 apical, 4-5 septate, oblong, sub-clavate, hyaline, slightly coloured. 

 ~B. ^ Br. Ann. N.H. no. 950, t. 16,/. 16. 



On nettle stems. Dec. Batheaston. 



Spores terminal, about three together. Differs from A. mvltispo-ntra, 

 Preuss, in the simple stem, without any creeping threads, and the small 

 number of spores. {Fig. 249.) 



1737. Acrothecium delicatuluxn. 



Acrothecium." 



B. ^- Br. " Delicate 



Effused, black, flocci straight ; spores linear, with one or 

 more septa, hyaline. — B. c^* Br. Ann. N.H. no. 1055, t. xiv./. 11. 

 On dead wood, probably beech and bramble. 



The spores are confined to the upper part of the stem, but not to the apex 

 itself. Occasionally the flocci are forked. Spores ■00045-"0007 in. long. The 

 form which occurs on bramble has scattered flocci, but differs in no other re- 

 spect. — B. <b Br. 



Gen. 215. 



SEPTOSPORIUM, Corda. 



Flocci erect, sparsely septate; spores 

 heterogenous, cellular, pedicellate; pedi- 

 cels septate. — Corda. Ic. i.p. 12. 



1738. Septospoxiuxn bulbotrichum. 



Corda. " Bulbous Septosporium." 



Tufts effused, thin, brown ; flocci simple, 

 bulbous at the base, septate, obtuse, darker 

 below, brown, yellowish above, diajohanous; 

 spores pedicellate, oblong-clayate, yel- 

 lowish, pedicels septate, attenuate, attached 

 at the base. — Corda. Icon. i.f. 176. Corda. 

 Anl. t. B.f. 10, no. 7. Pay.f. 332. 



j,ig_ 250. ^^ ^^^^^^ ^^°^- 



ExternaUy resembling a EdminthospoHum. The base of the flocci is de- 

 cidedly bulbous, and to it the spores are attached. ^^^ ,,,^^,;^ec?.; 



