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Evans: HeEpaTICAE OF PuERTO Rico oo 
PLATE 1 
Stictolejeunea sgquamata (Willd. ) Schiffn. 1. Part of female plant with two peri- 
anths, postical view, 2. Part of branching stem with most of the underleaves 
removed to show the lobules and the bases of the branches, postical view, x 25. 3. 
Male inflorescence, postical view, X25. 4. Two lobules, postical view, X45. 5. 
Base of leaf, antical view, 45. 6. Base of leaf subtending a branch, antical view, 
af, < 45. 8. Cells from middle of lobe surrounding an ocel- 
lus, X 265. 9. Apex of a lobe with a hyaline border, 200. 10. Apex of a lobe 
without a hyaline border, 200. 11, Antical base of lobe showing large papilla,  » 
200. 12, 13. Apices of lobules, showing hyaline papillae displaced from the margin, 
200. 14-16, Bracts and bracteole from a single involucre, X25. The figures were 
all drawn from specimens collected by the writer, figs. I, 3, 14-16 from Jamaican 
specimens (345), the others from Puerto Rico specimens (792, 795) 
Neurolejeunea Breutelii (Gottsche) Evans. 17. Female branch with perianth, the 
innovations dissected away, postical view, < 35. 18. Part of stem, postical view, x 
35- 19. Part of stem, antical view, X35. 20. Cells from middle of lobe, < 265. 
21~23. Bracts and bracteole from a single involucre, 35. e specimens were all 
drawn from specimens collected by Duss in Guadeloupe (022). 
PLATE 2 
Neurolejeunea catenulata (Nees) Schifin. 1. Female branch with perianth, pos- 
tical view, 35. 2. Another female branch with perianth, the innovations dissected 
away, postical view, < 35. 3. Part of plant with a short female branch, postical view, 
25. 4. Leaf, antical view, 35. 5. Cells from base of lobe with row of ocelli, 
6. Apex of lobe, showing hyaline cells, )< 200. 7. Apex of lobule, showing 
hyaline papilla, & 200. 8. Apex of another lobule, 200. 9-11. Bracts and bracteole 
from a single involucre, 35. 12. Perianth, postical view, X 35. e figures were 
all drawn from specimens collected by the writer, fig. 12 from a Jamaican specimen 
(323), the others from Puerto Rico specimens (743, 744). 
Ceratolejeunea portoricensis (Hampe & Gottsche) Evans. 13. Female branch 
with perianth and innovation, postical view, 35. 14. Part of stem, antical view, 
X35- 15. Cells from middle of lobe, those at right of figure drawn from a lower level 
to show the thin places in the vertical walls, 265. 16. Apex of lobe with hyaline 
cells, 9X 200. 17. Antical margin of lobe, 200. 18. Apex of lobule, 200. I9. 
Stem-underleaf, X35. 20-22. Bracts and bracteole from a single involucre, X 35. 
€ figures were all drawn from the type specimen. 
PLATE 3 
7-9. Bracts and bracteole from a single involucre, X 35. The figures were all drawn 
tom Puerto Rico specimens collected by the writer (56). 
: Lopholejeunea Sagraeana (Mont.) Schiffn, 10. Part of a female plant with 
Penanth, postical view, < 25. 11. Female branch with perianth, postical view, the 
underleaves and bracteole dissected away, < 25. 12. Part of stem, antical view, X 25. 
13. Cells from middle of lobe, X 265. 14. Cells from base of lobe in cross-section, 
