Rev. M. J. Berkeley andMr. C. E. Broome ow British Fungi. 319 



biseptate or trinucleate sporidia, whereas the sporidia of S. pluso- 

 stroma, Mont., are exactly as described in the ' English Flora ' 

 under S. tristis /3. 



619. S. (Villosa3) macrotrichay n. s. Subiculo repente; peri- 

 theciis ovatis deorsum pilis longis vestitis, sursum attenuatis de- 

 nudatis, cum ostiolo papillseformi coUabentibus ; ascis clavatis ; 

 sporidiis fusiformibus uniseptatis, 6-nucleatis. On dead leaves 

 of Carex paniculata, Batheaston, Feb. 1851. On beech mast, 

 King's Cliffe, Oct. 1851. 



Brown or nearly black ; subiculum effused, consisting of in- 

 terwoven creeping hairs ; perithecia crowded, ovate, clothed with 

 long hairs, attenuated and more or less denuded above, and when 

 dry collapsing with their papillseform ostiolum. Asci clavate. 

 Sporidia biseriate, fusiform, consisting of two apposed cones con- 

 stricted at the juncture and sometimes above the first nucleus, 

 each division containing one or more globules. 



This species appears to us very distinct from all described by 

 authors. It seems to come nearest to S. crinita, Fr., but his 

 published specimens are Chatomiwn elatum, Kze. 



The Cliffe specimens are darker, and the hairs are shorter, but 

 the form of the perithecia, their papillseform collapsing, compa- 

 ratively naked apex, and above all the sporidia, are identical. 



Plate IX. fig. 2. a. Perithecium ; b. ostiolum ; c. thread of mycehum ; 

 d. fragment of perithecium with flocci ; e. ascus j /. sporidia. All more or 

 less magnified. 



620. S. (Villosse) chatomium, Corda! Ic. Fasc. 2. 1. 13. fig. 102. 

 Chcetomium pusillum, Fries ! Sc. Suec. no. 272. S. exosporioides, 

 Desm. ! PI. Crypt, no. 126. On dead leaves of Carex pendula, 

 Batheaston, with >S^. Eres. 



There is no essential difference between the plant of Fries and 

 Desmazieres. Corda's figure represents the hairs as broad as the 

 base and incurved, but we find them exactly as in S. exospo- 

 rioides, Desm. The asci and sporidia agree in all the specimens, 

 except perhaps that in the specimens of Fries the asci are slightly 

 more slender and the endochromes less marked, differences which 

 occur in many species under A^arying circumstances of age, &c. 



We subjoin the characters of S. exosporioides as given in the 

 * Plantes Ciyptogames de France ' : — 



" Hypo- rarius epiphylla. Peritheciis minutissimis superfi- 

 cialibus sparsis vel gregariis humectatis subglobosis ; siccis pezi- 

 zoideo-collapsis atris ; pilis concoloribus rigido-divergentibus ob- 

 sitis ; ostiolis papillatis exilissimis ; ascis subfusiformibus ; spo- 

 ridiis oblongis, rectis vel subcurvatis ; sporulis 4 opacis." 



Plate IX. fig. 3. a. Perithecium; b. flocci; c. asci; d. sporidia. All 

 more or less magnified. 



