REPORT OF THE BOTANIST. 51 
RINODINA CONSTANS Zwuck. 
Bark of pine trees. New Baltimore. Howe. 
ARTHONIA LECIDEELLA /7. 
Bark of hickory trees. New Baltimore. Howe. 
BIaAToRA HyPpNopPuHILA TZuck. 
Incrusting mosses. Helderberg Mts. 
BUELLIA GEOGRAPHICA Schaer. 
Rocks. Summit of Mt. Marey and of Mt. Whiteface. 
CALICIUM SUBTILE Pers. 
On old hemlock trunks. Helderberg Mts. 
Calicium Curtisit 7uck. 
Bark of sumach, Rhus typhina. Helderberg Mts. 
MycoporuM PYCNOCARPUM Zuck. 
Bark of trees. New Baltimore. Howe. Sandlake. 
Alge. 
CHORDA LOMENTARIA ZO. 
Rocks near low tide limits. Long Island Sound at Green 
port and Orient. July. 
DESMARESTIA ACULEATA Lamour. 
Flushing Bay. March. G. B. Brainerd. 
ELACHISTA Fucicoua F7. 
On Fuci. Long Island Sound at Greenport and Plum Island. 
POLYSIPHONIA SUBCONTORTA 7. Sp. 
Tufts rigid,two to three inches high, loosely entangled, dark 
red; filaments slender, naked below, alternately and subdis- 
tantly branched above ; branches short, subequal, naked at the 
base, much branched above and expanded into a rigid, sub- 
squarrose bushy tuft of ramuli which are subfusiform and 
more or less curved or contorted; tubes four, surrounding a 
small central one; articulations of the leading filaments six 
to ten times, of the branches two to four times their breadth, 
those of the ramuli shorter than broad ; tetraspores in the 
swollen part of the ramuli. 
The filamentsare about as thick as hog bristles, nearly equal 
in thickness throughout, constituting a leading stem, with its 
