PLATE 21 
ae 
‘ 
ip ‘a 
iy, ph to bi 
1. fe | Sy Whee 
ii Nie 
AN yy MB 
} % 
ce 
’ 
= as 
Va29s srs 
/ 
Ng Yee oa 
hi 
ad 
Vat | 
Se 
» 
a 
\ 
“2 
LICHINA PYGMAEA Ag. 
a. Plant on rock. 6. Portion of plant. c. Section of thallus. d. Section of fertile 
branch with apothecium and spermogone. e. Ascus with spores and 
paraphysis. f. Sterigmata and spermatia. 
