114 BROOKLYN BOTANIC GARDEN MEMOIRS 
50. Caloplaca subsequestra (Nyl.) Riddle comb. nov. 
Lecanora Nyl. Flora 63: 127. 1880. 
On rocks, without definite locality, collected by Dr. Forel. En- 
demic. 
51. BUELLIA DISCOLOR (Hepp) Koerb. On rock, Tutu, 469b; with- 
out definite locality, collected by Dr. Forel, according to 
Nylander (Il. c.). Europe. 
52. BUELLIA PARASEMA var. AERUGINESCENS (Nyl.) Muell. Arg. On 
coconut near Charlotte Amalia, 489a. 
53. Buellia prospersa (Nyl.) Riddle comb. nov. 
Lecidia Nyl. Flora 63: 127. 1880. 
On rocks, without definite locality, collected by Dr. Forel. En- 
demic. 
54. PYXINE CocoEs (Sw.) Nyl. On bark, near Bonne Resolution, 
445; on Melicocca, Tutu, 466. 
55. PYXINE COCOES var. ENDOXANTHA Muell. Arg. On Guitlandina, 
Smith’s Bay, 1280; on bark, Mariendahl Road, 1475. 
56. PyxtNE MEISSNERI Tuck. On coconut palm, without definite 
locality, collected by Dr. J. N. Rose, 3198. 
57. PHYSCIA ALBA (Fée) Muell. Arg. On Erythrina, St. Peter, 1443. 
58. PuysciA CAESIA (Hoffm.) Nyl. On rocks, without definite local- 
ity, collected by Dr: Forel. Recorded by Nyl. Flora 63: 127. 
1880. 
59. PHyscIA CRISPA (Pers.) Nyl. On Elaphrium, near Charlotte 
Amalia, 491; on roots, same locality, 492, 496; on Melicocca, 
Tutu, 461. 
60. PHYSCIA EROSULA Nyl. Flora 63: 127. 1880. Based on material 
growing on rocks, St. Thomas, without definite locality, col- 
lected by Dr. Forel. Doubtfully distinct from the widely 
distributed Physcia tribacia (Ach.) Tuck. 
61. PHyscia PICTA (Sw.) Nyl. On rock, St. Peter, 1260; on coconut 
palm, collected by Dr. J. N. Rose, 3197. 
62. PHYSCIA SPECIOSA (Wulf.) Nyl. On rocks, near Charlotte Amalia, 
405; on bark, St. Peter, 1248, 1250. 
LICHENS OF Si. ,AN 
I. PYRENULA MAMILLANA (Ach.) Trev. On bark of Icacorea, Bor- 
deaux, 597. 
2. MELANOTHECA ACHARIANA Fée. On Inga, Bordeaux, 598. Cuba, 
Venezuela. 
3. MYCOPORELLUM ELLIPTICUM Muell. Arg. Flora 72: 508. 1889. 
On bark, without definite locality, collected by Levier, no. 113. 
Endemic. 
