106 BROOKLYN BOTANIC GARDEN MEMOIRS 
Lejeunea myriocarpa Nees ‘& Mont., now Cololejeunea myrtocarpa 
Evans. 
The fifth species, Anthoceros Breutelia Gottsche, was said to have 
been collected near Friedensthal, St. Croix. This species, in 1858, 
was transferred by its author'® to the genus Notothylas, where it is 
still retained. The following year Milde" showed that the type 
material of the species did not come from St. Croix but from the 
Corallberg, St. Jan. There is likewise a specimen from St. Jan in 
the Mitten herbarium, which is presumably a part of the original 
collection. : 
The sixth species, Lejeunea linguaefolia Tayl., was found “in 
Insula St. Thomas (Richard in Hb. Hk. a. 1814).””. A specimen of 
this species in the Lindenberg herbarium is referred by Stephani’ to 
Brachiolejeunea corticalis (Lehm. & Lindenb.) Schiffn., and the writer 
would make the same disposition of a specimen in the Mitten her- 
barium. Recently, however, Stephani has apparently thrown doubt 
on the propriety of this reduction. In the fifth volume of his Species 
Hepaticarum (1912), on page 35, he includes L. linguaefolia among the 
species of Ptychocoleus, citing it as Pt. linguaefolius Steph., and adds 
that he has been unable to see the plant and that his diagnosis is 
simply a translation of the original description. On page 127, never- 
theless, he again quotes L. linguaefolia among the synonyms of B. 
corticalis. Since Stephani’s original reduction was based on the study 
of an actual specimen, the writer would regard Pt. linguaefolius as 
nothing more than an unnecessary synonym. 
The seventh and last species, Riccia Breutelii Hampe, is described 
as new by Stephani in the first volume of his Species Hepaticarum 
(1898), on page 17, the habitat being given as ‘‘ Insulae S’Kitts et 5. 
Juan.” Dr. Howe informs the writer that there is some question 
about the identity of the St. Kitts and St. Jan plants and it is there- 
fore omitted from the following list, pending investigation of authentic 
material. 
In February, 1913, a botanical exploration of the islands was — 
carried on under the auspices of the New York Botanical Garden, the 
Carnegie Institution of Washington and the United States National 
Museum. The Hepaticae collected by the various members of this 
expedition form the basis for the present report. The specimens 
from St. Thomas, unless otherwise noted, were collected by Mrs. 
Elizabeth G. Britton and Miss Delia W. Marble, those from St. Jan 
10 Bot. Zeit. 16 (Anhang): 21. 1858. 
1 Bot. Zeit. 17: 50. 1859. 
2 Hedwigia 29: 22. 1890. 
1% See Bull. Torrey Club 35: 164. 1908. 
4 See Britton, N. L., Jour. N. Y. Bot. Gard. 14: 99. 1913. 
