HOMOPSIDEI. 



27 



5. EPHEBE Fr. PL Horn. (18fc&) p. 256 ; Nyl. Syn. i. (1858) 

 p. 85, emend. Flora, 1875, p. 6 (cfr. Cromb. Grevillea, v. p. 124). 

 Thallus usually dioecious, cylindrical, intricate ; within longitudinally 

 cellular ; gonimia chiefly towards the surface, 2-4 in each nodule. 



Fig. 4. 



Ephcbe pubescens Nyl. a. Thalline branchlet,, with apothecia, X 30. b. Thalline 

 branchlet, with spermogones, x30. c. Sterile branchlets, x30. d. Trans- 

 verse section of thallus, and d', longitudinal section of thallus, X 200. e. Four 

 syngonimia, x350. /. Section of thalline receptacle of three apothecia, X30. 

 g. Two thecsB, X 350. h. Five spores, X 500. i. Steriginata and eperinatia, 

 - X500. 



Apothecia solitary or aggregate, paraphyses none ; spores simple 

 or 1-3-septate : hymenial gelatine scarcely tinged with iodine. 

 Spermogones with long sterigmata and shortly cylindrical spermatia. 



This differs from the following genus in the generally dioecious 

 thallus, and more especially in the absence of paraphyses and in" the septate 

 spores. The apothecia in both genera have the " pyrenium " (i. e. the 

 " perithecium," in its former but erroneous acceptation, vide Nyl. Flora, 

 1875, p. 102) either colourless or slightly dark. In both also the sper- 

 mogones have the appearance of young' apothecia. 



