120 
.285 mm., and its membrane is covered with conical elevations. 
This species I call VV. Japonica. 
A new variety of Chara Hydropitys, which I propose to call 
var. Mexicana, has been collected by Mr. Pringle. The stem and 
leaves are very slender, the stem .260 mm. diameter, the leaves 
-230 mm. in diameter. The leaves are ten in number in the verticil, 
with six or seven nodes, the lowest of which is naked: three or four 
of the nodes are corticated: there is usually one naked terminal 
with four or five bracts, like a tuft, all of equal size. The antheridium 
.245 mm. in diameter, the oospore .435 mm. long by .245 mm. wide, 
with nine or ten faint stri. The spines on the stem are very small 
and scattered, broad at the base .o4o mm. broad and .035 mm. 
long. 
A new variety of Chara gymnopitys, to be known as var. 
Keukenis, from Lake Keuka in the State of New York. The cor- 
tex of the stem is irregular, the plants very small, and, from this 
locality, very much encrusted with lime. The oospore is .440 mm. 
long by .260 mm. wide, with nine very faint strie. The antheridium 
is .300 mm. in diameter. 
A Neglected Species of Hieracium. 
By N. L. Britton, 
(PLATE CXLYV.) 
HrerActuM GREENH, Porter and Britton, n. sp. 
Pilosella spathulata, Sch. Bip. Flora, xlv. 439 (1862), not H. spath- 
ulatum, Sheel. HH. Marianum, var. spathulatum, A. Gray, Syn. 
Fl. i. Part ii. 455 (1886). 
Stem glabrous up to the branches, erect, rather slender, leafless - 
or rarely with 1 or 2 leaves, 11%4°-2%4° high. Radical leaves tufted, 
ascending, broadly spathulate, oblong or obovate, obtuse at the 
apex, narrowed at the base, mostly petioled, glandular-denticulate 
or entire, villous-pubescent or somewhat hispid on both sides, 
4’—7’ long, 1’~2’ wide; heads corymbose-paniculate, several or 
numerous, 30—40-flowered, rather slender-peduncled, 8/10” broad; 
peduncles and branches canescent-tomentose and glandular ; in- 
volucre 5” high, its bracts in 1 series, linear, acute, densely. pilose 
and glandular; flowers bright yellow; achenes columnar, truncate; 
pappus not copious, brownish. 
