106 BROOKLYN BOTANIC GARDEN MEMOIRS 



Lejeunea myriocarpa Nees & Mont., now Cololejeunea myriocarpa 

 Evans. 



The fifth species, Anthoceros Breutelii 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 Imguaefolia 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 S. 

 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.i^ 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 



1° Bot. Zeit. 16 (Anhang): 21. 1858. 



11 Bot. Zeit. 17: 50. 1859. 



1^ Hedwigia 29: 22. 1890. 



^' See Bull. Torrey Club 35: 164. 1908. 



1* See Britton, N. L., Jour. N. Y. Bot. Gard. 14: 99. 1913. 



