SPH^EIACEI. 923 



* Epiphyllous. 



2778. Venturia Dickiei. De Not. *' Dickie's Venturia." 



Perithecia aggregate, erumpent, snbglobose ; ostiola obtuse, 

 papilla?form, beset with rather long, rigid setie, seated on an in- 

 terwoven filamentous stratum ; asci short, subcylindrical ; spori- 

 dia uniseptate, quadrinucleate. — Sphcei'ia Dicl'iei, B. ^- Br. Ann. 

 N.H. no. 617, pi. x./. 8, Lasiohotrys Linncece, Dickie, MSS. Berk. 

 Outl. p. 404. Venturia Dickiei, De Not. Schema, p. 51. Cooke 

 Seem. Journ. 18G6,^. 49,/. 1. 



On leaves of Linna^a horealis. 



Forming orbicular sori beneath the true cuticle about a line broad. Peri- 

 thecia at lenccth exposed, subglobose, with an obtuse papillseform ostiolum, 

 beset witli stiff dark bristles, as long or longer than themselves, springing 

 from a radiating, more or less interwoven stratum, of very obscurely septate 

 brownish threads, amongst which are a few darker and closely articulate. 

 Asci short, subcylindrical, obtuse. Sporidia oblong, short, containing 

 about four nuclei or four regular endochromes, or more properly uniseptate, 

 with two endochromes in each division. 



2779. Venturia chaetoxniuxn. De Not. " Small Sedge 



Venturia." 



Hypophyllous, rarely epiphyllous ; perithecia very minute, 

 superficial, scattered or gregarious, snbglobose, collapsed when 

 dry, black, covered with rigid divergent hairs ; ostiolum papil- 

 late ; asci nearly spindle-shaped ; sporidia oblong, straight or 

 slightly curved, containg four sporules or nuclei. — Sphceria chce- 

 tomium, Corda. ii. t. 13./. 102. B. ^' Br. Ann. N.H. no. 620, jf. 

 9,/. 3. Chcetomium pusillum, Fries, exs.no. 272. Sphceria exos- 

 porioicles, Desm. exs. no. 126. Venturia chcetomium, De Not. 

 Schema, p. 51. Cooke Seem. Journ. 1866, t. 49, /3. 



On dead leaves of Carex penclula. 



Sporidia ('00027 in.) -007 m.m. long. 



2780. Venturia eres. De Not. " Long-haired Venturia." 



Scattered, superficial ; perithecia globose, beset with long, 



rigid articulated bristles ; asci short, clavate ; sporidia oblong, 



uniseptate. — Sphceria eres, B. 4' Br. Ann. N.H. no. 621,/>Z. ix. 



Jig. 4. Venturia eres, De Not. Schema, p. 51. Cooke. Stem. Journ. 



1866,?. 49,/. 2. 



On dead leaves of Carices. 



