GOMPHILLUS. | BHOMYCETEI. 107 
Series II. Cladodei Nyl. Syn. i. (1860) p. 174. 
Thallus either horizontally expanded and crustaceous, or usually 
erect and foliaceous. Apothecia terminal on podetia, rarely sessile 
and without podetia, biatorine, rarely Jecanorine (mazedium none); 
spores usually Sn, oblong, simple, or elongate and septate, very 
rarely murali-divided. 
The genera in this series are very diverse, both in external form and 
internal structure; but there are various important points of connection 
which warrant their being thus associated. This arrangement is more 
natural than one which places some of them far apart from the others. 
Tribe III. BH OM YCETEI Nyl. Mém. Soc. Cherb. iii. (1855) 
p- 168 (ut Beomycei) ; Bull. Soc. Linn. Norm. sér. 2, vi. (1872) 
p. 320. 
Thallus various, either horizontally ex- 
panded and crustaceous, or also vertically 
ascending and podetiiform. Apothecia 
either sessile and biatorine, or depressed 1 erm, 
and difform, or podetiiformi-stipitate, pale es 
or reddish ; spores 8nz, oblong, simple or \Wy d 
1-8-septate, colourless. Spermogones with 
arthrosterigmata, very rarely with simple 
sterigmata. —C 
This tribe, as observed by Nylander (Syn. e 
i. p. 174), is composed of genera differing con- 
siderably in the thallus and apothecia. The 
affinity of these genera, however, seems to he 
with each other in this Series, rather than 
with the Zecanore: or Lecideet, in which, for 
the most part, they have been variously placed 
by authors. 
26. GOMPHILLUS Nyl. Mém. Soe. 
Cherb. iii. (1855) p. 1866; Syn. i. p. 175. 
—Thallus very thin, consisting of spheri- a@ 
cal gonidia of moderate size, and of irre- 
gularly filamentose elements gelatinosely =e 
conglutinate. Apothecia stipitate, clavato- or 
capitate, corneous ; spores Sn (the thece ; 
not distinct), filiform, multiseptate, para- Fig. 29. 
i : : hymenial gelatine not Gomphillus calicioides Nyl. 
physes not discrete; hy g Batic aaa el : 
tinged with iodine. Spermogones some-  tecium, x 30. 5. A 
what prominent; stcrigmata simple, Ml- shorter spore, X 500. c. 
nute; spermatia slender, cylindrical, Section of a spermogone, 
straight. x 80. d. Sterigmata 
and spermatia, x 500. 
This peculiar genus differs in many ways 
from the others belonging to this tribe. Though showing a slight 
