HISTORICAL 115 
is not the same as what we now call Microlejeunea cucullata (R. 
Bl. & N.) Jack & Steph., of Java, but is apparently to be referred 
to Mierolejeunea lucens (Tayl.), a species at that time undescribed ; 
while Z. calcarea is not precisely the same as the European Colole- 
Jeunea calcarea (Lib.) Schiffn. but agrees better with the North 
American representative of this species, C. Biddlecomiae (Aust.), 
which was not published until 1890. 
The next notes we find on our Lejeuneae are by European 
writers. From 1844 to 1847 Gottsche, Lindenberg and Nees von 
Esenbeck issued their classical Synopsis Hepaticarum in five parts. 
The Lejeuneae are treated in the second and third parts, which 
appeared in 1845, and in the fifth or supplementary part, which 
was published two years later. In the second and third parts the 
following five Lejeuneae are recorded from North America: Phrag- 
micoma versicolor, Lejeunea transversalis, L. catenulata, L. Doro- 
theae and L. serpyllifolia. The first of these species is a composite ; 
so far as American material is concerned, it is the same as Junger- 
manna auriculata Wils. & Hook., which is unjustly reduced to it 
as a synonym. Lejeunea transversalis is admitted solely on the au- 
thority of Schweinitz. Z. catenulata, under -which Jungermannia 
transversalis Schwein. strangely appears as a synonym, is Neuro- 
lejeunea catenulata (Nees) Schiffn. It is a species of tropical 
America, but there is no adequate evidence that it occurs within 
the United States. The last two species require no comment. In 
1846 Taylor described a large number of new hepaticae from 
various parts of the world and among them six Lejeuneae, pre- 
sumably from North America. Many years later it was proved 
that four of these species, viz.: Phragmicoma testudinea, P. cyclo- 
stipa, Lejeunea polyphylla and L. longiffora,* did not come from Ohio 
at all, as Taylor supposed, but were really collected near Para in 
Brazil. A fifth species, Z. calyculata, is a synonym of Archilejeunea 
clypeata. It is probable that the sixth species, Z. /ucens, was also 
originally collected at Para. This plant, however, has a wide 
* AIL four of these species are reduced to synonymy by Stephani (Hedwigia, 
29: 1890). Phragmicom ı testudinea is Zyenolsjeunsa macroloba (Mont.) Schiffn., 
