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



; somewhat irregular, soft ; substance beneath the hymeniura paler. 

 Asci cylindric ; sporidia elongated, elavate, '001 inch long, 4-6- 

 septate; paraphyses branched, bearing at their tips one or more 

 dark bodies, sometimes arranged like the joints of a necklace. 



The fructification of this species is so remarkable that there 

 can be no difficulty in recognizing it, though its external appear- 

 ance does not differ greatly from that of some other species. In 

 an unpublished species, T, Raveneliij B., there is a similar deve- 

 lopment of the tips of the paraphyses. 



775. P. livida, n. s. Gregaria saepe congesta subhemi- 

 sphserica sessilis olivaceo-lutea margine albido, extus subtiliter 

 sericea. 



Abundant on fallen firs, Gopsal Park, Leicestershire, Dec. 1851. 



Minute, gregarious, often crowded, olivaceous yellow, greyish 

 when dry, sessile, hemispherical, fixed by a small point, minutely 

 silky externally, margin dirty white. Hymenium plane. Asci 

 subfusiform, bulging in the centre, often geniculate; sporidia 

 oblong or elliptic, perhaps immature. 



This species has a Lichenoid aspect, but has no crust whatever 

 and is certainly undescribed. It resembles in general appearance 

 Patellaria carpinea, with which it agrees closely in fi-uit. P, rha- 

 harharina also is closely allied. 



^Triblidium caliciifor-me, Fr. Summa, p. 369 ; Cenangium cali- 

 diforme, Syst. Myc. On oak bark, Shrewsbury, Rev. W. A. 

 Leighton ; Essex, H. Piggot, Esq. 



Asci containing four sporidia, varying greatly in length, but 

 sometimes as much as '002 inch. 



776. Abrothallus Welwitschii, Mont. Ann. d. Sc. Nat. Ser. 3. 

 vol. xvi. p. 79. On Sticta fuliginosa, Essex, H. Piggot, Esq. ^^ 



This curious production is considered by Montague a Discomy- 

 cete near Agyrium, and by Tulasne a Lichen. We are not in a 

 position to decide so knotty a point, but we have great pleasure 

 in recording the discovery of so curious an object by Mr. Piggot. 



777. Sphceria (Plsitystomsd) fibritecta, Berk, in Hook. Journ. 

 1853, p. 43. On bleached larch planks, King's Cliffe, Dec. 1851. 



778. S. (Caulicolse) tritorulosa, n. s. Subcuticularis semi- 

 immersa subglobosa ostiolo papillseformi ascis elongatis, sporidiis 

 tritorulosis. 



On dead stems of Epilobium hirsutum, Twycross, Rev. A. 

 Bloxam. 



At first covered by the cuticle, then exposed, half immersed ; 

 perithecia subglobose with a papillseform ostiolum; asci cylin- 

 drical ; sporidia oblong, •0006--0007 inch long, containing three 

 nuclei, and with two constrictions. 



Plate XVI. %. 15. Asci and sporidia magnified. 



