BRIEFER ARTICLES 
NOTES ON CAREX. XIX. 
Carex Madrensis, n. sp.— One of the Inpica, and, with C. Schiedeana 
Kunze, making a well-marked section of that group: slender, a foot 
to eighteen inches high, with short and flattish leaves: spikes about 
four, aggregated, or the lowest one or two remote and long-peduncled 
from sheaths, a half inch long, and ovate or nearly globular, the apical 
staminate part very short: perigynium obovoid and slightly excurved, 
distinctly and abruptly beaked, the orifice slightly toothed, the body 
trigonous and strongly few-nerved, somewhat scarious, but not hairy 
or pubescent: scale broad and blunt, with a short cusp, brown, with a 
dorsal nerve, shorter than the light-colored perigynium. 
Differs from C. Schiedeana, its nearest relative, in its much laxer habit 
and softer leaves, the absence of long bracts subtending the uppet spikes, 
the more scattered spikes, the long peduncles of the lower spikes, 
glabrous less-nerved perigynium, and the broader and blunter scales.— Nea! 
the top of the Sierra Madre mountains, State of Durango, Mexico, J. 4. Row 
2357. 1897. 
Carex Seatoniana, n. sp.—Allied to C. spissa Ba 
spikes loosely flowered, perigynia ascending and thi 
hispid: plant five or six feet high, with stiff, rough-ed 
ored leaves: spikes about ten, half of them pistillate, 
staminate tips, the lower ones long-stalked and five or six 
narrow and loosely flowered: perigynium ovate to obovate prac 
turbinate, firm and not inflated, strongly few-nerved, short- ~~ 
with the orifice entire or nearly so, sparsely hispidulose, often neself : 
ticulate: scales awl-like and serrate, or becoming broad and oo 
cuspidate near the apex of the spike. 
A well-marked plant, with scattering perigynia in scales below a 
spikes, and more densely flowered near the apices, all the ‘60 Pringle 
tips very long and prominent.— Moist river bluffs, near Tula, Mexie® 
7452. 1897. Dedicated to the memory of Henry E. Sea 
curator of the Gray Herbarium and student of Mexican Pp 
270 
iley, but less spe 
nly haired 
ged, light-col- 
with si 
inches | 
the midst of the lent 
lants. [ art 
