GOMPHILLtJg.] 



B^OMYCETEI, 



107 



Series II. Cladodei Xyl. Syn. i. (18G0) p. 174. 



Tliallus either horizontally expanded and crustaceous, or usually 

 erect and foliaceous. Apothecia terminal on podetia, rarely sessile 

 and without podetia, biatorine, rarely lecanorine (mazoedium none); 

 spores usually Snte, oblong, simple, or elongate and septate, very 

 rarely murali-divided. 



The genera in this series are very diverse, both in external form and 

 internal structm-e ; 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. B^OMYCETEI Nyl. Mem. Soc. Cherb. iii. (1855) 

 p. 168 (ut Bceoviycei); Bull. Soc. Linn. ^orm. ser, 2, vi. (1872) 

 p. 320. 



Thallus various, either horizontally ex- q 



panded and crustaceous, or also vertically 

 ascending and podetiiform. Apothecia 

 either sessile and biatorine, or depressed 

 and diftbrm, or podetiiformi-stipitate, pale 

 or reddish ; spores 8nae, oblong, simple or 

 1-3-septate, colourless. Spermogones with 

 arthrosterigmata, veiy rarely with simple 

 sterifrmata. 



This tribe, as observed by Nylander (Syn. 

 i. p. 174), is composed of genera dithering con- 

 siderably in the thallus and apothecia. The 

 athnity of these genera, however, seems to be 

 with each other in this Series, rather than 

 with the Lecanorei or Lecideei, in which, for 

 the most part, they have been variously placed 

 bv authors. 



"^ 



26. GOMPHILLUS Nyl. Mem. Soc. 

 Cherb. iii. (1855) p. 1806; Syn. i. p. 175. 

 — Thallus very thin, consisting of s^^beri- a 

 cal gonidia of moderate size, and of irre- 

 gularly filamentose elements gelatinosely -^ - 

 conglutinate. Apothecia stipitate, clavato- "•^■^ 



capitate, corneous ; spores Suae (the thecae 

 not distinct), filiform, multiseptate, para- ^'g- 29. 



phvses not discrete ; bvmenial gelatine not (^omphilhis calicioidcs Njl. 

 tinged with iodine. Spermogones some- -«■. Section of an apo- 

 , ''^ . ^ . ■ X • 1 • thecium, x 30. h. A 



\\ luit prominent; stcrigmata simple, mi- 

 nute ; spermatia slender, cylindrical, 

 straight. 



shorter spore, x 500. 

 Section of a spermogoue, 

 X iiO. d. Sterigiuata 

 and spermatia, X 500. 



This peculiar genus differs in many ways 

 from the others belonging to this tribe. Though showingr a 



slight 



