50 FUNGUS-FLORA. 



yellowish discoloration of the tissues of the host, splitting 

 irregularly above into a few teeth ; disc black at the surface, 

 yellowish-brown inside ; cells of hypothecium elongated, 

 interwoven ; asci cylindrical in the spore-bearing portion, 

 tapering below to a narrow base ; spores 4, broadly elliptical, 

 ends usually blunt and rounded, sometimes one or both 

 rather acute or papillate, divided by a transverse septum 

 into two cells of very unequal size, the smaller cell sometimes 

 basal, sometimes apical, clear brown at maturity, 25-30 X 

 15—17 jx; joaraphyses numerous, about 2 /x thick, septate, 

 expanding into a large pyriform, brown apex, 5-6 \x wide. 



Phacidium tetrasporum, Phillips & Keith, Gard. Chron., 1880, 

 Sept. 4, fig. 56 ; Phil., Brit. Disc, p. 388. 



On the upper surface of living leaves of juniper. 



Generally one, rarely two specimens on a leaf; resembling 

 a Puccinia in habit. The smaller of the two cells of the 

 spore, which is very minute, is sometimes at the base of the 

 spore, in others at the apex, both these conditions are not 

 unfrequently present in the same ascus. In some spores the 

 transverse septum is very difficult to see, and sometimes it 

 is entirely absent. 



Specimen from Phillips examined. 



COCCOMYCES De Xotaris. (figs. 10-13, p. 12.) 



Ascophores scattered, innate, between fleshy and waxy, 

 blackish or brownish, heinispherico-depressed, shield-like, 

 rather tumid when moist, angularly orbicular, closed above 

 at first, the epidermis of the host usually connate with the 

 excipulum, at length splitting in a radiate manner from the 

 centre into a variable number of teeth, and exposing the 

 disc ; asci clavate or cylindric-clavate, 8-spored ; spores 

 needle-shaped, hyaline, smooth, continuous, or transversely 

 septate, or multi-guttulate, arranged in a paralled fascicle in 

 the upper portion of the ascus ; parapbyses delicate, hyaline, 

 often curved at the apex. 



Coccomyces, De Not., Giorn. Bot. Ital., vol. ii. p. 38; Sacc, 

 Syll., viii. p. 744; Piehm, Krypt.-Flor., Disc, p. 76. 



Closely allied to Pltacidium, but known by the long, needle- 

 shaped spores, which are arranged in a parallel bundle in 

 the ascus, and are often septate. 



