EXPLANATION OF PLATES 179 
PLATE 18 
Brachiolejeunea corticalis (Lehm. & Lindenb.) Schifín. 1, Stem with perianth, 
postical view, X 31. 2. Leaf, postical view, X 35. 3. Cells from middle of lobe, 
310. 4. Cells from antical margin of lobe, X 220. 5. argin of lobule, 
inner portion, X 220. 6. Free margin of lobule, outer portion, Run, both from 
leat 2; 55. Bici 5° = 9. Bracteole, X 35. 10, 11. Transverse sections of 
pean, 10 from upper third, 11 from about the middle, d 35. The Ay gures are all 
drawn from specimens collected at Lake Worth, Florida, by L. M. Underwood 
(no. 293). 
Euosmolejeunea duriuscula (Nees) Evans. 12. Stem with 9 senec pos- 
tical view, X 35. 13, I4. Sterile stems, postical view, X 35. 15, 16. Cells from mid- 
dle of lobe, X 310. 17. Apex of lobule, X 220. 18, 19. Bracts, X 35. 20. 0 
teole samê e X 35. 21-23. Bracts and bracteole from another involucre, 
Xa , 13, 15, and 17-20 are drawn from Hep. Bor.-Amer. no. 96; 14, 16, and 
21-23, ia Hep pr no. 97. 
Euosmolejeunea opaca (Gottsche) Steph. 1. Sterile stem, postical view, X 40. . 
2, Branch with perianth, postical view, X 40. 3. Cells from middle of lobe, X 350. 
. Cells from anticál hes of lobe, X 250. 5. Apex fe dae x 250. 6. Apex of 
veer x 250 7. Apex of underleaf-segment, X 2 8, 9. Bracts, X 40. IO. 
sole, X 40 11. Tra ansverse section of perianth in vie third, < 40. The figures 
are ae drawn from are collected at qne ei Florida, by E. Faxon, 
15. Cells from middle of lobe, X 350. 16. Apex of la Xx 250. 17. Apex 
underleaf-segment, X 250. 18, 19. Bracts, X 40. 20. Bracteole, X 40. 21. Trans- 
verse section of perianth in upper third, X 40. The figures are all drawn from the 
type-specimens. 
PLATE 20 
Chetlolejeunea ae (Nees & Mont.) Schiffn. I. Stem with perianth and Y 
inflorescence, X 40. 2. Cells from middle of lobe, X 350. 3. Cells from antical 
margin of bea, ox n 4. Apex of lobule, X 250. 5. Underleaf, X 60. 6-8. De- 
tails of ped wor 6 representing one side of base, 7 and 8 apices of segments, 
x ts, «40. 11, 12. 2. Bracteoles, X 40. 13. Transverse section of 
perianth at pee pum middle, 8 peci lected 
at Lake Worth, Florida, by L. M. Und erwood (no. 301 ۰ (۰ 
Lejeunea Paene (Lindb.) Evans. 14. Stem with perianth and & inflores- 
Neg. postical view, X 40. 15. Sterile stem (a slender form), postical view, X 40. 
lls from middle of lobe, X 350. 17. Apex of lobule, X 250. 18. Base of 
iud (one side), X 250. 19-22. Apices of underleaf-segments, X 250. 23, 24. 
Bracts, X 40. 25. Bracteole, x 40. 26. Transverse section of perianth in upper third, 
X40. 2 is drawn from specimens collected by A. B. Langlois near St. Martinsville ; 
the other figures, from heran collected at Eustis, Florida, by L. M. Underwood 
(no. 1 
PLATE 21 
guión rg lucens (Tayl. Evans. 1. Stem with 9 PUREE postical 
view, X 3 2. Sterile stem, postical view, X 35. 3. Cells from middle of lobe, 
310. s: Abiit base of lobe, X 220, 5. Apex of lobe, X 220. 3 و‎ of 
