178 LEJEUNEAE OF THE UNITED STATES AND CANADA 
Descriptive Catalogue of the North American Hepaticae, north 
of Mexico. Bull. Ill. State Lab. Nat. Hist. 2: 1-133. 1884. 
Notes on our Hepaticae. I. Northern Species. Bot. Gazette, 
14: 191-198. 1889. 
Hepaticae. A. Gray, Man. Bot , Ed. 6. 702-732. pl. 22-25. 
1890. 
A new North American Zejeunea. Bull. Torrey Club, 17: 258, 
259. 1890. 
A few Additions to the Hepatic Flora of the Manual Region. 
Bull. Torrey Club, 19: 299-301. ۰ 
A preliminary Comparison of the hepatic Flora of boreal and 
sub-boreal Regions. Bot. Gazette, 17: 305-312. 1892. 
Underwood, L. M., & Cook, 0. F. Hepaticae Americanae [Exsiccatae]. 
Nos. 1-200. 1887-1899. Incomplete. Quoted as Hep. Amer. 
Explanation of Plates 
PLATE 16 
Mio a ere clypeata (Schwein. ) Schiffn. 1. Stem with perianth, postical view, 
e stem, postical view, X 27. 3. Vor antical view, X 27- 
from middle d lobe, X 350. 5. Cells from antical margin of lobe, X 250. 6,7. 
Apices of lobules, X 250, 8, 9. Bracts, X 40. 10. Bracteole, X 40. Il. Tray 
verse section of perianth in upper third, X 40. The Mus are all drawn from speci- 
mens collected by the writer at Woodbridge, Connecticut » 
PEA Sellowiana Steph. 12. Stem with two perianths and d inflores- ; 
cence, postical view, X 16. 13. Leaf, antical view, X 16. 14. Cells from middle of 
lobe, X 350. 
X 250. 17, 18. Bracts, X 40. 19. Bracteole, X 40. 20. Transverse section 
perianth at about the middle, X 40. The Sida are all drawn from specimens col- 
lected by A. Commons, at Laurel, Delaware (no. 19) 
PLATE 17 E 
rn conchifolia Evans, 1. Stem with perianth, postical view, X 27- 
etin tical view, I 3. Cells from middle of lobe, X 350. 4. Cells from 
antical margin of lobe, X 250. 5. Apex of-lobule, X 250. 6, 7. Bracts, X 40 
Transverse section of ionem at about the middle, X ۰ The 
drawings are all made from the type s a 
Mastigolejeunea auriculata (Wils. & tia ) Schiffn. ro. Stem with periant 5 7 
postical view. „X 11 
by L. nderwood in Florida; 11 and 15 
from Orange Bend ( ۳ 1583) and the remainder from Blandton (no. 1988)- 
15. Cells from antical margin of lobe, X 250. 16. Apex of lobule, Hs 
