320 Rev. M. J. Berkeley and Mr. C. E. Broome on British Fungi. 



621. S, (Villosse) Eres, n. s. Sparsa superficialis ; peritheciis 

 globosis pilis longis rigidis articulatis vestitis; ascis brevibus 

 clavatis ; sporidiis oblongis uniseptatis. On dead leaves of Carex 

 paniculattty SpyePark, Feb. 1850; on Carex pendula, Batbeaston, 

 Jan. 1850. 



Scattered over tbe leaves and quite superficial, attached by a 

 few hyaline creeping threads. Perithecia globose, beset with 

 very long radiating, rigid, somewhat pellucid articulated bristles, 

 which are black to the naked eye, but purplish brown under the 

 microscope ; when young their apices are often swollen. Asci 

 rather short, clavate ; sporidia biseriate, oblong-elliptic, about 

 four times as long as broad. 



This very beautiful species occurs on the same leaves as the 

 foregoing, and is distinguished by its much larger perithecia, 

 longer pellucid not opake hairs, clavate not fusiform asci, and 

 shorter uniseptate sporidia. The present under a lens looks very 

 like Vermicularia trichella ; whereas the hairs of the former are 

 scarcely visible. 



Plate IX. fig. 4. a. Perithecium ; b. one of the flocci; c. ascus with 

 paraphyses ; d. sporidia. All more or less magnified. 



622. S. (Denudatse) arenula, n. s. Sparsa ochroleuca peri- 

 theciis ovatis brevissime pedicellatis ostiolo papillseformi ; ascis 

 clavatis ; sporidiis oblongis subfusiformibus uniseptatis. On dead 

 leaves oi Aira ccespitosa, Batheaston, Feb. 1851. 



Thinly scattered over the leaves. Perithecia ovate, with an 

 obtuse papillseform ostiolum, contracted at the base, rarely ob- 

 ovate and perfectly blunt. Asci subclavate ; sporidia biseriate, 

 oblong, slightly attenuated, rarely subelliptic uniseptate. 



Allied to S. coccinea, and at first calling to mind our genus 

 OomyceSf but agreeing really in structure with the above-men- 

 tioned species. 



Plate IX. fig. 5. Asci and sporidia magnified. 



*>S^. pulvis pyrius, P. A very curious state of this species has 

 been found atRudloe in Nottinghamshire on broom, and specimens 

 gathered by Capt. Carmichael in % similar condition are in Sir 

 W. J. Hooker's herbarium. The perithecia are sometimes posi- 

 tively produced beneath the cuticle, but on the same twig others 

 occur on the naked portions of the bark and run over the stroma 

 of some Sphcerittj probably S. fusca, so as to give it a very curious 

 appearance, and to have led Dr. Klotzsch to consider the pro- 

 duction as S. conglohataj Fr. The subcuticular specimens have 

 the habit of S. verrucariuj which very frequently accompanies 

 S. conglohata. A specimen of the latter sent to us by Fries has 

 given us the opportunity of examining S. verrucaria, which we 



