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Evans : Hepaticae of Puerto Rico 179 



Explanation of plates S-S 



As in the previous papers of this series the figures were drawn by the writer and 

 prepared for publication by Miss Hyatt. 



Plate 6 



Brachiolejeunea insularis Evans. Part of stem with branch, postical view, 

 X 15- . 2. Part of stem with base of branch, postical view, X ! 5- 3- Leaf > antical 

 view, X l 5- 4> 5- Perianths with involucres, the innovations dissected away, 

 postical view, X 2 5- 6. Cells from middle of lobe, X 26 5- 7~9- Free margins of 

 lobules, X 45- IO » **• Apices of lobules, X 2 °°- I2 - Marginal teeth of lobule, 

 X 200. 13. Stem-leaf at base of branch, X l 5- *4- Basal a ^ricle of underleaf, 

 X 200. 15-17. Bracts and bracteole from one involucre, X x 5- 18-20. Bracts and 

 bracteole from another involucre, X *5- 2I > 22 - Transverse sections of perianths, 

 X 35- Fig. 5 was drawn from specimen collected by Heller {4463a) ; Figs. 8, 9, 

 11, 18-20, from specimens collected by Howe (46s) ; the remaining figures from the 

 type specimen. 



Plate 7 



Ptychocoleus poly carpus (Nees) Trevis. 1. Part of stem with base of a branch, 

 postical view, X*5- 2 - A P ex of female branch with perianth, postical view, X I 5- 

 3. Partofstem, antical view, X IS- 4- Cells from middle of lobe, X 2 65- 5- Margin 

 of lobule, the apex on right, X 200. 6-8. Bracts and bracteole from the same invo- 

 lucre, XI5. 9. Subfloral leaf below involucre, X '5- i°- Bracteole from another 

 specimen, X *5- «< Transverse section of perianth, X 2 5- The figures were all 



drawn from specimens collected by Howe (14/1, f4 T 4)* 



Leucolejeunea xanthocarpa (Lehm. & Lindenb.) Evans. 12. Part of sterile 



stem, postical view, X 15- J 3- Part of P lant with P erianth > P°stical view, V 25. 14. 

 Part of stem, antical view, X *5- x 5- Leaf with Iobule flattened out ' X *5- l6 - Cells 

 from middle of lobe, X 2 6S- 17- Cells from antical margin of lobe, X 2 °°- l8 > f 9- 

 Apices of lobules, X 2 oof 2C^22. Bracts and bracteole from the same involucre, 

 X25. 23. Transverse section of perianth, X 35- The figures were all drawn from 

 specimens collected by the writer (76). 



Plate 8 



Archilejeunea viridissima (Lindenb.) Evans. I. Apex of female stem with peri- 

 anth, postical view, X 25. 2. Part of caudex, postical view, X 2 S- 3- Cells from 

 middle of lobe, X ^S- 4- Margin of lobule, the apex on right, X 2 °0- 5, 6 - Bract 

 and bracteole from the same involucre, X 2 5- 7- Bract from another involucre, X 2 S- 

 8. Transverse section of perianth, X 2 5- The figures were all drawn from specimens 



collected by the writer (140). , 



Anoplolejtunea conferta ( Meissn. ) Evans. 9 - P«t of sterile stem with microphyl- 



lous branches, postical view, X 25- IO - Female branch with P enanth > P ostlcal view > 

 X 25. II. Apex of male branch, postical view, X 25- ™- Branch w,th P°° rly de ' 

 veloped lobules, postical view, X 25- 1 3- Lobule, postical view, X 45- »4- Longi- 

 tudinal section through lobeand lobule, X 45- '5- Mouth of lobule, diagrammatic. 10. 

 Cells from middle of lobe, X 265. 17- Cells from base of lobe, enclosing an ocellus. 

 X 200. 18. Margin of lobule, apical end on left, X200. IQ- Penanth with invo- 

 lucre, postical view, X35- 20, 21. Bract and bracteole from a single involucre, 

 X25. 22. Perianth, postical view, X 25. 23. Transverse section of perianth, X 35- 

 The figures were all drawn from Jamaican specimens collected by the writer {43, 272, 



424)- 



