148 RippLE: THE LICHENS OF BERMUDA 
10. PYRENULA LEUCOPLACA (Wallr.) Koerb. 
On decorticated Juniperus, north of Hamilton, £. G. B. 69, 
on Nerium, Devonshire Marsh, Z. G. B. 165; on Rhizophora, 
Fairy Land, E. G. B. 194; on Eugenia, Tucker’s Town, E. G. B. 315; 
on Ficus, Wreck Hill, Brown & Britton, 1108; without definite 
station, Brown, Britton & Seaver, 1225. 
II. PYRENULA MAMILLANA (Ach.) Trev. 
On Elaeodendron, without definite station, Brown, Britton & 
Seaver, 1578, 1587. 
12. PYRENULA NITIDA var. NITIDELLA (Flke.) Schaer. 
On Melia, hillside near Flatts, HE. G. B. 50, 53; on Nerium, 
Devonshire Marsh, E. G. B. 164; on trees, Church Cove, £. G. B, 
1081. The material shows considerable variability, but om 
account of the small size of the perithecia appears to belong here. 
13. Anthracothecium tetraspermum Riddle, sp. nov. 
Thallus epiphloeodes crustaceus indeterminatus, sat crassuUs, 
continuus sat laevigatus aut subleprosus, olivaceus opacus: 
Gonidia chroolepoidea. Perithecia dispersa, 0.4 mm. diam., 
nigra, primum immersa et thallo obducta apice anguste denudato, 
demum emergentia; amphithecio globoso completo. Paraphyses 
simplices. Asci constanter 4-spori. Sporae fuscae oblongae 
murali-divisae, 4-loculares, 2-locellati, 15-20 X 8-10 nu. 
On bark of palmetto, Devonshire Marsh, collected by Mrs. 
E. G. Britton, No. 169 in part. 
Distinct from all other species of the genus in the spore 
characters. 
14. MELANOTHECA AGGREGATA (Fée) Muell. Arg. 
On Elaeodendron, without definite station, Brown, Britton g 
Seaver, 1583. 
15. MELANOTHECA CRUENTA (Mont.) Muell. Arg. 
Without definite station, Challenger Expedition. 
16. PyRGILLUS CUBANUS Nyl. 
On bark of palmetto, Devonshire Marsh, E. G. B. 169 in part: 
An interesting species known previously only from the original 
collection made by Charles Wright in the island of Cuba. 
