116 LEJEUNEAE OF THE UNITED STATES AND CANADA 
range, extending into the United States and is apparently the same 
as Sullivant's Z. cucullata. In the supplementary part of the 
Synopsis Hepaticarum these six species of Taylor are quoted with 
little comment, and L. minutissima, L. calcarea and L. cucullata 
are recorded from North America on the authority of Sullivant. 
`. The first and second editions of Gray's Manual contain descrip- 
tions of the hepaticae by Sullivant. In the first edition, published 
in 1848, only four Lejeuneae are included. These are L. serpylh- 
folia, L. clypeata, L. calcarea and L. cucullata. - In the second edi- 
tion, published in 1856, species from the Southern States are added, 
and we find eleven Lejeuneae. The list includes the four species 
quoted above, Taylor's six new species, as well as L. minutissima 
and L. auriculata. L. lucens Tayl., however, is quoted merely as 
a synonym of Z. cucullata. 
In Austin’s papers on hepaticae, published from 1869 to 1879, 
we find seven species of Lejeuneae described as new and three species 
recorded for the first time from the United States. Two of the new 
species, Z. Sullivantiae ('72) and L. Mohrü (75) are now reduced 
to synonymy ; the first being referable to Euosmolejeunea duriuscula 
and the second to E. opaca (Gottsche) Steph. A third species, L5 
biseriata ('69) proved to be a moss, as Austin himself afterwards 
decided. Three other species, L. Ravenelü, L. Caroliniana and L. 
laete-fusca, all published in 1876, are so incompletely described 
that we know little about them. Even the type specimens, where 
accessible, do not aid us; they are very fragmentary and are either 
sterile or in poor condition. Under the circumstances it seems ad- 
visable to allow these three names to disappear from our literature. 
Austin's seventh species, the only one here retained, is £L. 0 
(75), which belongs to the genus Cololejeunea. Of the three spe- 
cies which Austin first accredited to the United States, Phragmi- 
coma xanthocarpa does not agree with authentic specimens of this 
widely distributed tropical species but should be referred to Archi- 
lejeunea Sellowiana Steph.; the specimens referred to the European 
Lejeunea ovata, now Harpalejeunea ovata (Hook.) Schiffn., are prob- 
ably correctly named ; while those referred to Z. /aete-virens Mont., 
a West Indian species, are in too poor a condition to be definitely 
determined. 
In 1875 the Finnish botanist, Lindberg, in a lengthy paper on 
