388 



BRITISH DISCOMYCETES. 



4. 

 5- 

 6. 



I Hymenium brownish or cinereous : on Rubus 

 Hymenium pale fuliginous : on Finns 

 Hymenium .-traw- coloured: on Vaccinium 



Hymenium dirty-yellow : on Quereus 



Hymenium pallid, livid, or yellowish : on Quereus 



Hymenium whitish : on Rubus 



Hymenium whitish : on Ilex 

 > Hymenium whitish : on Quereus 



Hymenium sooty-black: on Vaccinium 



Hymenium pale brown: on Arctostaphylos 



Hymenium cinereous : on Pinus 

 ^Hymenium black : on Juniperus 

 |On the stems . . . . . . 



\On the leaves . . 



|Hymenium fuliginous : on Campanula 

 \Hymenium red-brown : on Clinopodium 

 jHymeniuni brownish or cinereous: on Caltha 

 \Hymenium dingy-brown : on various plants 



striatum. 



Pini. 



leptideum. 



dentatu m. 



coronatum. 



Rubi. 



1 Ucis. 



minutissimum. 



Vaccinii. 



Arctostaphyli. 



abietinum. 



tetrasporum. 



5 



6 



radians. 



simulatum. 



Calthse. 



repandum. 



A. SPORIDIA ELLIPTIC OR SUBELLIPTIC. 



(a) Brovm. 



1. Phacidium tetrasporum. Phil, and Keith. 



Epiphyllous, ermnpent, circular or oblong, convex, 

 cinereous, seated on a brownish-yellow spot, splitting 

 irregularly into 3 or 4 lacinias ; hymenium black 

 on the surface, brownish-yellow within; asci broadly 

 clavate ; sporidia 4, elliptic-ovate, with a septum near 

 the lower end, often with a papilla, brown, 25 — 28 x 17/z ; 

 paraphyses numerous, filiform, with brown, pear-shaped 

 heads, septate. 



Phacidium tetrasporum — Phil, and Keith, in Garcl. 

 Chron., 1880, Sept. 4, t. 56 ; "Scott. Nat.," vi. 164. 



On the upper side of juniper-leaves while yet green, 

 simulating a Puccinea. 



About J a line broad. 



Name Ttrpag, four, enropog, seed ; four-seeded. 



Forres, N.B. ! (Rev. Dr. Keith). 



(b) Hyaline. 



2. Phacidium radians. Rob. 



Erumpent, black; receptacles minute, rounded or 

 oblong, globose, then flattened, solitary and scattered, or 



