EUOSMOLEJEUNEA DURIUSCULA 135 
On trees and fallen logs. Southern States (Sullivant, fide 
Austin); Virginia (Mrs. Britton and Miss Vail); Tennessee 
(Ruth); Georgia (Underwood). The species also occurs in 
western Europe but is rare. Pearson * states that it grows ón 
shaded rocks but according to Camus + it is also found on bark. 
Harpalejeunea ovata has been illustrated three times within 
recent years. Stephani's figure, already noted in the synonymy, 
was drawn from specimens collected in Portugal. The writer has ° 
illustrated the specimens from Virginia, ? while Pearson has pub- 
lished figures drawn from British material.$ The perianth, known 
only from the brief description in the Synopsis Hepaticarum, does 
not appear in any of these illustrations. 
The American specimens agree closely with the type-material 
in the Taylor herbarium but show a greater variability in the 
shape of the bracteole than European writers describe. There 
are no male specimens among them, and the description given 
above of the perigonial spike is taken wholly from Pearson. 
There is no other species from the United States with which 
H. ovata ought to be confused. The acute lobes of its leaves and 
its emarginate-bifid underleaves with rounded divisions are unique 
among our Lejeuneae. The species, however, finds several close 
allies in tropical regions, where the genus /arpalejeunea is largely 
represented. 
7. Euosmolejeunea duriuscula (Nees) 
PLATE 18, Fics. 12-13 
Jungermannia serpyllifolia Wils. & Hook. p. p. Drummond, 
Musc. Amer: St. Merid. 171. 1841. 
Lejeunea duriuscula Nees; G. L. & N. Syn. Hep. 364. 1845. 
Lejeunea flexuosa Lindenb. /. c. 385. 1845 (fide Stephani). 
Lejeunea serpyllifolia var. Sull. Musc. Alleg. 273. 1845. 
Lejeunea Sullivantiae Aust. Bull. Torrey Club, 3: 15. 1872. 
Lejunea Austini Lindb. Acta Soc. Sci. Fenn. 10: 489. 1875. 
Lejeunea (Cheilo-Lejeunea) duriuscula Spruce, Hep. Amaz. et 
And. 259. 1884. 
* Hep. Brit.(Isles, 43. 9۰ 
f Bull. Soc. Bot. de France, 47: 201. 1900. 
T ito : Vail, Mem. Torrey Club, 4: ۸. 87. 1894. 
àL. E pl, 8. 
