L966] 



LEAFY HEPATICAE OF LATIN AMERICA — PART II 



267 



Plate 61 



Fig. 13. Micropterygium trachyphyUum. 13 a. Stem, ventral view, X 75. 13 b. Cells of 

 the dorsal margin of a leaf near the apex, X 700. 13 c. Superficial mamillae of the leaf cells, 

 profile view, the cuticle verruculose, X 700. 13 d. Female bract of an intermediate series. 

 X 75. 13 e. Portion of a female bract of the innermost series, X 75. 13 f. Female inflorescence 

 and perianth (immature), X 75. 13 g. Transverse section of the 2-. 3-layered basal portion 

 of the perianth, X 700. 



