COCCOMYCES. 51 



Coccomyces coronatus. Sacc, Syll., viii. n. 3052 ; 

 Rehm, Krypt.-Fl., p. 76. 



Gregarious or sometimes crowded, innate then emergent, 

 orbicular, or somewhat elongated, about 1-3 mm. across, 

 black, shining, smooth, convex when moist, collapsing and 

 wrinkled when dry, splitting from the centre into 5-10 

 nearly equal teeth, disc yellowish or pallid ; asci clavate, 

 apex narrowed and subtruncate, attenuated downwards into 

 a long pedicel ; spores 8, needle-shaped, sometimes very 

 slightly inclining to become clavate, hyaline, at first con- 

 tinuous and multi-guttulate, then becoming many septate, 

 40-75 X 2-3*5 /x, arranged in a parallel fascicle in the wide 

 upper part of the ascus ; paraphyses numerous, cylindrical, 

 about 3 fx thick, adhering to each other, more or less wavy or 

 curled at the apex. 



Phacidium coronatum, Fries, Obs. Myc, i. p. 167 ; Phil., 

 Brit. Disc, p. 394. 



There is a ditference of opinion as to the supposed sper- 

 mogonia of this species; according to Phillips they are as 

 follows ; — Spermogonia intermixed, punctiform, globose- de- 

 pressed, unilocular, filled with spermatia, which are elon- 

 gated, straight, colourless, about 65 /a long. 



Karsten, in Hedwigia, 1884, no. 2, p. 5, considers Fusicoccum 

 coronatus as belonging to the present species; spermatia 

 cylindrical, hyaline, continuous, 12-14 x 2-2*5 fx. 



Finally Tulasne, Sel. Fung. Carp., iii. p. 135, says the 

 spermatia are linear, straight, unequal in length, averaging 

 about 6 * 5 fx long. 



On fallen leaves of oak, poplar, willow, chestnut, horn- 

 bean, &c. 



Coccomyces striatus. Mass. (figs. 10-13, p. 12.) 

 Ascophore broadly elliptical or orbicular, up to 1 mm. 

 long, blackish, radially rugosely wrinkled or striate, de- 

 pressed, splitting from the centre into 5-7 irregular teeth 

 and exposing the nearly plane smoky grey disc ; excipulum 

 parenchymatous, cells small, external ones olive ; cells of 

 hypothecium very small and compact ; asci clavate, apex 

 rather acute, attenuated downwards into a long slender 

 l^edicel; spores 8, arranged in a parallel fascicle near the 

 apex of the ascus, hyaline, for a long time continuous, then 



k 2 



