190 BENEDICT: GENERA OF THE FERN TRIBE VITTARIEAE 
Fic. 6. Polytaenium discoideum; R.S. Williams 1355, Bolivia; leaf, X 14, show- 
ing venation and arrangement of sporangia. 
Fic. 7. Antrophyum Williamsi Benedict (see Am. Fern Jour. 1: 70. I9I1); 
R. S. Williams 1579, Luzon; plant, 14, showing arrangement of sporangia in lines, 
as in middle leaf, and their apparent confluence at maturity. 
1G. 8-10. Polytaenium quadriseriatum Benedict; Nash & Taylor 1360, Hayti, 
type; 8, leaf, natural size, showing venation and arrangement of sporangia; 9, 10, 
cross-sections of leaves, X12, showing sporangial grooves 
PLATE 8. Ontogenetic sages 
(All figures except 19 twice natural size) 
Fic. 1-11. Vittaria intramarginalis; Underwood & Earle 875, Cuba. 
Fic. 12-19. Vittaria remota; — plants grown at the N. Y. Botanical Garden: 
spores from Jamaica; 19, natural s 
Fic. 20-23. Ananthacorus; Dae 2767, Jamaica. 
Fic. 24-28. Antrophyum reticulatum; C. B. Robinson, Bureau ue Science, 
n 
IG. 29-40. Polytaenium lanceolatum ; from plants grown at the N. Y. Bot- 
anical Garden, spores from Cuba (Taylor). 
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