240 MaAcKENZIE: NOTES ON CAREX 
roughened on the angles above, exceeding the leaves, phyllopodic, 
and slightly fibrillose at base. Well-developed blades about six 
to ten to a fertile culm, flat or somewhat folded at base, 2-3 mm. 
wide, 1.5 dm. long or less, erect or ascending, roughened towards 
the apex, the sheaths of the upper and of the bracts prolonged at 
the mouth and strongly tinged with chestnut-brown ; staminate 
spike solitary, slender-peduncled, 1.5—2.5 cm. long, 2-3 mm. wide, 
the oblong-obovate scales closely appressed, obtuse or subacute, 
chestnut with white-hyaline margins and apex; pistillate spikes 
one or two, widely separate, erect, the upper on scarcely exserted 
peduncle, the lower on a strongly exserted peduncle, short-oblong 
or oblong, 12-20 mm. long, 7.5-10 mm. wide, closely flowered, 
the perigynia 15-35, spreading-ascending in several ranks ; bracts 
strongly sheathing, the blades erect, much shorter than inflores- 
cence ; scales ovate, short, acute or obtuse, brownish chestnut 
with conspicuous white- hyaline apex and margins above, the 
center lighter-tinged, nearly as wide and nearly as long as body 
of perigynia; perigynia yellowish-green, narrowly elliptic, slightly 
inflated and suborbicular or obscurely triangular in cross-section, 
5-6 mm. long, 1.5-2 mm. wide, strongly and rather closely about 
10-nerved, rounded to a substipitate base, and contracted into a 
rough strongly bidentate beak 1.5 mm. long, the erect slender 
teeth smooth within ; achenes triangular, oblong-obovoid, 2 mm. 
long, I mm. wide, long- -tapering at base; style slender; stigmas 
three. 
Many years ago B. D. Greene collected near Boston two species 
of Carex, which are now in the Torrey Herbarium. One of these 
was described by Dewey in 1836 as Carex Greeniana (Am. Journ. 
Sci. 30: 61). This name has by most subsequent authors been 
treated as a synonym of Carex Hornschuchiana Hoppe (‘Carex 
fulva Good.” of most authors). An examination of both the 
original specimen and the original description of Dewey shows 
that this course is erroneous. The specimen marked Carex 
Greeniana is a specimen of the European Carex helodes Link ( Carex 
laevigata Smith) and has the long-acuminate or aristate scales of 
that species, in this agreeing with Dewey’s description, which calls 
for a plant with cuspidate or mucronate scales. 
The other specimen, which is marked “ Carex fulva Good.” is 
closely related to the European C. Hornschuchiana Hoppe and 
furnishes one of the chief reasons for attributing that species to 
North America, as has been done for years under the name of 
“Carex fulva Good.” What Carex fulva Good. really is, has, 
