356 MEMOIRS OF THE NEW YORK BOTANICAL GARDEN [VOL. 11 



Plate 93 



Fig. 1. Fuscocephaloziopsis biloba. 1 a. Stem, dorsal view, X 20. 1 b. Stem, ventral view, 

 X 20. 1 c. Leaf showing insertion, ventral view, X 50. 1 d. Portion of a leaf, X 200. 1 e. Female 

 bract, outer series, X SO. 1 f. Female bract, innermost series, X SO. 1 g. Female inflorescence and 

 perianth, X 10. 1 h. Portion of a perianth mouth, X 200. Figs. 1 a-d, from the type; 1 e-h, from 

 Trinidad, Simmonds 173. 



female inflorescence; stems tending to be flattened, in transverse section of about 

 10 rows of large, thin-walled cortical cells (the ventral rows smaller), surrounding the 

 medulla of numerous smaller, thick-walled cells with trigones and pits. Rhizoids 

 numerous from the ventral side of the stem. Leaf insertion nearly longitudinal. 

 Leaves widely spreading, subimbricate, subquadrate, the lateral margins curved, bi- 

 lobed to about one-sixth the length, the segments triangular, of only a few cells, the 

 sinus broad, lunulate, the margin at most weakly crenulate; cells of the upper part 

 of the leaf 52-78 X 52-65 n, the marginal cells smaller, 26 /u. high X 52-65 /x wide, 



