92 
ILLUSTRATIONS OF THE GENUS CAREX. 
Hab. In America septentrionali. Canada to North 
Carolina, in cedar swamps. 
Culmus 1-2-pedalis, debilis, obtusangulus, lsevis, basi vaginis 
foliorum rubro-purpureis tectus ; pars spicas gerens 3-9 poll, 
longa. Folia 1-2| lin. lata, culmo breviora, graminea. Brac- 
tea summa setacea, spicam suam vix sequans: alias foliacese. 
Vaginas 3-15 lin. longse. Pedunculus infimus 1-3 poll, longus. 
Spica mascula 3-5 lin. longa, vix 1 lin. lata, pallida, pedun- 
culo 1-10 lin. longo suffulta. Spica foeminea 1-1 1-florae, 
3-6 lin. longse, 8-10 lin. latse: summa subinde 1-3-flora, ses- 
silis, evaginata: vel omnes vaginatse, apice extremo steriles 
vel masculse, superiores contiguse vel omnes 1-4 poll, remotes, 
inferiores plus minus longe exserte pedunculate, erectse. 
Squama omnes acute, cuspidate. Perigynium lin. 
longum, t 6 - 0 - latum. Achenium 1 T %- lin. longum, | lin. latum, 
lineari-triquetrum, faciebus convexis, stylo contorto, basi ejus 
recta apiculatum. 
This delicate species, which Torrey remarks is never of a yellow 
colour, is peculiar in the deep sulcus of the rostrum and the su¬ 
bulate reflexed lacinise of the orifice of the perigynium, a character 
not noticed by Richard. It was not known to Muhlenberg. Mr. 
Curtis has met with it in North Carolina. 
227. C. Shortiana (Torrey) ; spicis 4-5 rarius 3-6 
androg-ynis basi masculis cylindricis vel oblongis arrectis 
densifloris alternatim contiguis, inferioribus pedunculatis 
evaginatis aurantiacis demum fusco-brunneis ; bracteis 
inferioribus foliaceis, infima culmum subsequante; stig- 
matibus 3; perigyniis snbrotundo-obovatis ventricosis 
superne compressis abrupte rostellatis, ore integro vel 
emarginato, marginibus acutis glabris enerviis horizon- 
taliter clivergentibus ssepe subexcurvis transversim cor- 
rugatis stipitatis, squama ovata vel elliptica mucronulata 
rnedio viridi trinervi margine ferruginea latioribus lon- 
gioribus vel subaequantibus.—C. Shortiana, Torrey, 
Dewey , 30, 60 (1836); Drejer, Symb. 12. t. 1; Carey, 
520 ; Sartwell, Exs. n. 64. C. Shortii, Tor. Mon. 407 
( non Steud.). C. aporandra, Kunze, MSS. in Herb. 
Hooicer. (Tab. CCLXXI.) 
Hab. In America septentrionali. Pennsylvania to Vir¬ 
ginia, Ohio, Illinois. 
Culmus 1-3-pedalis, triqueter, rigidus, scabriusculus, inferne 
foliatus, basi rudimentis foliorum fusco-purpureis vaginisque 
ferrugineis tectus; pars spicas gerens 2-6 poll, longa. Folia 
2-4 lin. lata, superiora culmo longiora, pallide viridia, demum 
flavida. Bractea evaginatse, inferiores (vel infima solum) fo¬ 
liacese, culmo longiores vel breviores : superiores setacese, 
spicis suis breviores. Pedunculus infimus j-2| poll, longus, 
scaberrimus. Spica 1-11 poll, longse, 2-2\ lin. latse: summa 
ssepe basi subdimidiatim mascula, reliquse parcius masculse, 
omnes alternat imcontiguse, vel infima paulo remota quando- 
que cernua : obtusse vel flosculis abortivis apiculatse. Squama 
conformes, masculse longiores, obtusse, muticse. Perigynium 
l-A —to h n - longum, T V-l-ro hn. latum. Achenium ^ 
lin. longum, \ lin. latum, ovali-triquetrum, faciebus convexi- 
usculis punctulatum, fusco-ferrugineum, angulis pallidioribus, 
basi styli brevis oblique decidua. 
"We are indebted to Dr. Short for this beautiful species, who 
discovered it in Kentucky; and it was named after him by Dr. 
Torrey, whose name is the more appropriate. 'Dewey, however, 
alone published it in 1836, under the name of C. Shortiana, Torrey. 
Drejer was inclined to place it in his Melananthce, near C. Mer- 
tensii, an affinity which Torrey also recognizes. If the inflores¬ 
cence is alone to be considered, that affinity is evident; but I 
rather incline to the opinion of M. Spach, who in a note to me re¬ 
marks, that the “ proxima affinitas est cum C. glaucescente , Elliott.” 
The remarkable diaphanous tenuity of the perigynium in C. Mer- 
tensii, and its deep-coloured squamae, separate it from C.'Shortiana , 
and ally it to C. Banksii. 
228. C. debilis (Michaux); spicis 4-5 rarius 6 cylin¬ 
dricis gracilibus pedunculatis pallidis, terminali tenui 
mascula vel apice extremo foeminea, reliquis fcemineis 
laxifloris longe setaceo exserte pedunculatis nutantibus, 
inferioribus remotis basi sparsifloris interdum composi- 
tis; bracteis vaginatis culmo longioribus vel brevioribus ; 
stigmatibus 3 ,• perigyniis fusiformibus plus minus sub- 
turgidis utrinque acutis sessilibus rostratis, rostro apice 
albo-hyalino margine ssepe scabro, ore obliquo bilobo 
(laciniis membranaceis obtusis ciliatis), tenuiter nervatis 
nervis ssepe superne evanidis vel inconspicuis pellucide 
punctatis viridibus demum castaneis vel olivaceis ferru- 
gineo-punctatis, squama albida vel ferrugineo-tincta ob- 
longa obtusa mutica, nervo viridi scabro infra apicem 
late albo-hyalinam ciliatam evanescente, vel ovata rarius 
lanceolata acuta vel cuspidata latioribus plus minus lon¬ 
gioribus.—C. debilis, Mich. l.c. ii. 172 (1803); Tor. 
Mon. 416; Carey, l. c. 527 ; Darlington, El. Cest. ed. 3. 
352; Chapman, 541 ; C. tenuis, Iludge, Lin. Trans, vii. 
97. t. §.fig. 2 (1804). C. flexuosa, Muhl. 253; Willd. 
iv. 297 (1805); Schk.f. 124; Kunth, 471 ; Dewey, Sill. 
x. 40; Schio. et Tor. 351. (Tab. CCLXXII.) 
Hab. In America septentrionali, in sylvis humidis et 
pratis. Norway House, Richardson. New England to 
Pennsylvania and south-westward, Carey. Mountains of 
Carolina and Georgia, Ducldey. 
Var. /3 ; spicis 5-7 erectis, terminali mascula vel medio 
vel basi vel apice et basi mascufa, foemineis linearibus 
angustis flosculis alternatim dispositis, inferioribus ssepe 
basi compositis ; perigyniis brevioribus, rostro rarius 
scabro, squama oblongo - ovata obtusa vel acuminata 
acuta mutica ciliata subsequilata longioribus. (Tab. 
CCLXXIII.) 
Hab. New York, Sartwell, Exs. n. 118. Pennsylva¬ 
nia, Toionsend. 
Var. y; spicis 4-5 ferrugineis, terminali mascula al¬ 
bida, reliquis fcemineis, inferioribus basi laxifloris erectis 
vel nutantibus ; perigyniis angustioribus longioribus, 
rostro apice alte albo-hyalino ssepe scabro, ferrugineo- 
punctatis, squama lanceolata obtusa ciliata vel infima 
acuminata acuta rarius cuspidata albida, nervo viridi 
scabro plus duplo longioribus. (Tab. CCLXXIV.) 
Hab. Louisiana, Dr. Hale. New Orleans, Drummond, 
n. 435. 
Var. a. Culmus 1-2-pedalis, debilis, apice setaceus, scaber, 
basi rudimentis foliorum purpureis glabris vel puberulis tectus; 
pars spicas gerens 5-16 poll, longa. Folia 1-2 lin. lata, culmo 
breviora vel sequantia, supra scabra, vagimeque inferiores ssepe 
puberulse. Bractea (nisi suprema) vaginatse, omnes ssepius 
culmo longiores. Vagina infima 1-2 J. poll, longa, intus ssepe 
(sub lente) puberula : suprema plerumque obsoleta. Pedun- 
culi setacei, scabri: infimus interdum 5-6 poll, longus. Spica 
terminalis mascula, 8 lin. ad 2 poll, longa, \ lin. lata, basi 
laxiflora, pedunculata: ssepe apice extremo foeminea. Spica 
foeminea 1-2| poll, longse, 1-2 lin. latse, nutantes, apice flos¬ 
culis imbricatis basi alternatim remotiusculis instructse : in- 
