BRITTON: FLORA OF THE VIRGIN ISLANDS LTS 
4. ARTHONIA. On bark, Bordeaux, 577. 
5. ARTHOTHELIUM MACROTHECUM (Fée) Mass. On JIcacorea, Bor- 
deaux, 540. 
6. Graphina nitidescens (Nyl.) Riddle comb. nov. 
Fissurina Nyl. Lich. Japon. 108. 1890. 
On Nectandra, Bordeaux, 581. Florida, Cuba, Porto Rico. 
7. OPEGRAPHA VULGATA Ach. On Maytenus, Little St. James Island, 
N. L. Britton & J. N. Rose, 1405. 
8. Leptogium marginellum var. isidiosellum Riddle var. nov. 
Thallus isidiis tenuibus dense tectus; ceterus ut in forma typica apothecia 
nulla. 
On wet rock, road to Rosenberg, N. L. Britton & J. A. Shafer, 
Feb. 5-7, 1913, no. 276 (type!). 
The fringed apothecia being such a characteristic feature of 
Leptogium marginellum, it is only after some hesitation that this 
material has been placed here. The texture and the wrinkling of the 
thallus is in exact agreement, however, with typical specimens. And 
the relation of this variety to the species is strictly comparable with 
the conditions in L. tremelloides, abundantly fruiting in the tropics, 
and its variety caesium, with isidia but very rarely fruiting; and with 
L. phyllocarpum and its variety isidiosellum. 
9g. PARMELIA TINCTORUM Despr. On tree-trunk, Bordeaux, 567. 
The following lichens are recorded in “Le Végétation des Antilles 
Danoises”’ by F. Bérgesen & Ove Paulsen in Revue Générale de 
Botanique 12: 507, 508. 1900. 
StictA WEIGELII (Ach.) Wainio. St. Croix; St. Thomas. 
GRAPHIS scRIPTA (L.) Ach. St. Croix. 
LECIDEA BUELLIANA Muell. Arg. St. Croix. 
PERTUSARIA WULFENII (DC.) Fr. St. Croix. 
PARMELIA PERLATA (L.) Ach. St. Thomas; St. Jan. 
PARMELIA TINCTORUM Despr. [P. coralloides Mey. et Flot.] St. Croix. 
PHYSCIA INTEGRATA Nyl. St. Jan. 
RINODINA sp. St. Croix. 
VERRUCARIA sp. St. Croix. 
ARTHONIA RADIATA (Pers.) Ach. St. Croix. 
SCHIZOXYLON sp. St. Thomas. 
FUNGI 
During our exploration of St. Thomas and St. Jan in 1913, about 
25 species of fungi were obtained, and Dr. Rose collected four others 
on St. Croix; manuscript record has been made of these. 
Twenty species collected by Mr. Ricksecker on St. Croix are 
