Evans : Hepaticae of Puerto Rico 25 



Explanation of plates 1-3 



The figures were drawn by the writer and, with a very few exceptions, prepared 

 for publication by Miss Hyatt. 



Plate i 



Cheilolejeunea decidua (Spruce) Evans. I. Part of prostrate stem, with two 

 branches, postical view, X 3 2 - 2. Cells from middle of lobe, X 250. 3. Cells from 

 antical margin of lobe, X I9°- 4- Apex of lobule, X 190. 5- Apex of underleaf- 

 division, X I 9°- 6 - Male inflorescence, postical view, X 4°- 7« Part of an ascending 

 branch, from which most of the lobes have fallen away, postical view, X 32. 8. A de- 

 tached lobe with three leafy shoots growing from it, X 3 2 - 9- A leafy shoot without 

 underleaves, from another detached lobe, X 5o. The figures were all drawn from speci- 

 mens collected in Florida by Small & Carter {1370 p. p., 1408). 



Rectolejeunea Jtagellifortnis Evans. 10. Female branch with perianth and flor- 

 iferous innovation, postical view, X 32. IX. Part of sterile stem, postical view, X 3 2 « 

 12. Two leaves, antical view, X 32. 13. Cells from middle of lobe, X 2 5°- *4- Cells 

 from antical margin of lobe, X 1 9°- *5- Apex of lobule, X 190. 16. Base of underleaf, 



X I 9°- 17- Apex of underleaf-division, X J 90- !8, 19. Bracts, X 32. 20. Bracteole, 

 X 3 2 - 21, 22. Apices of bracteoles, X 3 2 - 23. Apex of flagelliform branch, postical 

 view, X 3 2 « 24. Modified leaf from flagelliform branch, with young leafy shoot grow- 

 ing from it, X 3 2 - 25. Part of modified underleaf, X I 9°- The figures were all drawn 

 from Cuban specimens collected by Underwood & Earle {346, 521). 



Plate 2 



Rectolejeunea e margin uliflor a (Gottsche) Evans. I. Part of a stem with a female 

 inflorescence, postical view, X 45- 2 - Part °f a sterile stem, postical view, X 35- 3» 

 Part of a stem from which most of the leaves have fallen away, postical view, X 45* 

 4, 5. Bracts, X 45- 6. Bracteole, X45- 7- Detached leaf with a protonema and a 

 leafy shoot growing from it, X 45- 8. Detached leaf with several protonemata, X 45- 

 Figs. 4-6 were drawn from the type specimen (Hep. Cubenses) ; the remaining figures 

 were drawn from the specimens collected by A. A. Heller {4741 p. p. ). 



Pycnolejeunea Schwaneckei (Steph.) Schiffh. 9. Part of a stem with a perianth 

 and a microphyllous branch, postical view, X 2 5- 10. Part of stem, antical view, X 

 25. 11. Microphyllous branch, antical view, X 45- I2 - The same, postical view, X 

 45- 13. Cells from middle of lobe, X 265. x 4- The same in cross-section, X 200. 

 IS- Cells from antical margin of lobe, X 200. 16. Cells from base of lobe, with an 

 ocellus, X 200. 17. Apex of lobule, X 200. 18. Apex of underleaf-division, X 200- 

 19. Bract and bracteole, X 2 5- 20. Bract, X 2 5- 2I - Cross-section of perianth at 

 about the middle, X 35- 22. Cross-section of perianth near the apex, X 35- 23. 

 Male inflorescence, antical view, X 35* The figures were all drawn from specimens 

 collected in Jamaica by the writer (99). 



Plate 3 



Cystolejeunea lin eata (Lehm. & Lindenb.) Evans. I. Part of sterile stem, 

 postical view, X 35- 2. Part of stem with male inflorescence, postical view, X 35- 

 3- Explanate leaf, postical view, X 35- 4- Leaf, antical view, X 35- 5- Cells 

 from middle of lobe, X 265. 6. The same in cross-section, X 200. 7. Cells from 

 antical margin of lobe, X 200. 8. Apex of lobule (showing reflexed papilla), X 200. 

 9, IO. Apices of underleaf-divisions, X 200. II. Leaf from female branch, X 35- 

 12. Underleaf from female branch, X 35- I 3- I 5- Bracts, X 35- l6 , ! 7- Bracteoles, 

 X 35- 18. Perianth, X 35- *9- Cross-section of perianth, X 35- Th e figures were 

 all drawn from specimens collected by the writer {38 p. p., 46 p- p.). 



