564 DEMATIEI. 



forming a rather dense head ; spores polymorphous, elongated, 

 septate, yellow-brown; articulations sub-quadrate, contents 

 granular.— Tra//r.i^Z. Cr.ii. p. 300. CorcZa. i./. 279. Rahh.F.E. 

 no. 82. B. ^ Br. Ann. N.H. no. 820. FcJd. exs. no. 1523. 



On dead nettle stems. 



The base of the stem is sometiraes sheathed, as in the genus Spcn^ochisma . 



1688. Dendryphium cuxtum. B. ^' Br. " Short Dendry- 



phium." 



Thinly effused ; flocci erect, divided above into short, forked 

 raniuli; spores curved, 3-7 septate, articulations constricted. — 

 ^nn. N.H. no. 538, t. 6,/. 9. Cooke exs. no. 357. 



On dead stems of nettles. Dundee, &c. 



Black, forming very thin, effused patches. Fertile flocci springing from 

 creeping tilaraonts, erect, straight, septate, divided above into a few short 

 furcate or trifid ramuli, which are surmounted by curved 3-7 septate spores, 

 whose articulations are strongly constricted. A small but neat species, re- 

 markable for the short-forked ramuli. The tips of these are often greatly 

 constricted at the articulations when the spores begin to grow.— B.d; Br. 



(Fig, 237.; 



1689. Dendryphium laxum. B. S; Br. "Loose-branched 



Dendryphium." 



Stems short, loosely branched above ; spores elongated, sub- 

 flexuose 7-11 septate. — Ann. N.H. no. 539, t. 6,/. 10. 



On dead stems of Inula viscosa. King's Cliffe. 



Patches effused, black ; flocci short, erect, articulated, sending off loose 

 branches, which either spring at once from them, or are replaced by a few 

 swollen joiuts ; spores linear, curved, or somewhat flexuous, multiseptate, 

 springing often from the forked tips ; articulations slightly constricted j en- 

 dochrome frequently containing a nucleus.— £. d: Br. 



1690. Dendryphium ramosum. Cooke. " Branched 



Dendryphium." 



Patches effused, black ; flocci erect, articulated, branched 

 above ; branches furcate, elongated, lax ; spores straight, cylin- 

 drical, 3-5 septate. — Cooke exs. no. 294. 



On herbaceous stems. July. Ashmanhaugh, Norfolk. 



The branches are not radiating as in D. comosum, septate, but not monili- 

 form, lax, but more capitate than D. laxum. Branches three or four times 

 as long as in Z) . curium. 



1691. Dendryphium griseum. B. ^^ Br. " Grey Den- 



dryphium." 



Grey ; flocci sparingly branched ; spores cylindrical, conca- 

 tenate, at length uniseptate, hyaline. — Ann. N.H. no. 510, t. 6,f. 

 11. Babh.F.E. no. 83. 



