ILLUSTRATIONS OF THE GENUS CAREX. 
33 
the summit. In five specimens the upper female, and in five the 
two lower, were compound at the base. 
O. microdonta, Tor., and 0. alveata, B., are not yet sufficiently 
known. 
A O. alveata differt squamis brevioribus uninerviis, perigyniis 
nervis concoloribus nec prominentibus. 
A G. microdonta differt culmo foliis bracteisque rigidis breviori¬ 
bus, spica mascula smpius 1 nusquam 3-4, squamis masculis muticis 
obtusis brevioribus, spicis fcemineis brevioribus latioribusque. 
In O. microdonta (Drummond, n. 439) bractea infima saepe pe- 
dalis, flaccida. 
81. C. conoidea (Schkubr); spicis 3-4 rarius 2 ob- 
longis densifloris, terminali mascula pallide ferruginea 
pedunculata, reliquis fcemineis subolivaceis bracteatis, 
superioribus approximate vel subremotis, suprema ses- 
sili, inferioribus exserte pedunculatis, infima ssepe remota 
nut ante; bracteis superioribus culmum subsequantibus; 
stigmatibus 3; perigyniis ellipticis utrinque obtusis vel 
apice conicis obtuse triquetris, ore integro, resinoso- 
punctatis superne pallide viridibus basi ferrugineis gla- 
bris crebre nervosis (nervis sulcatis), squama ovata acuta 
plus minus longe bispido-cuspidata albida medio late 
viricli trinervi carina scabra longioribus vel brevioribus. 
—C. conoidea, Schk. v.v.v., f. 168; Willd. iv. 280; 
Kunth , 452; Tuck. Hn. 15; Tor. Mon. 414; Carey, 
Gray, Bot. 522; Sartwett, Car. Hxsic. n. 82; Hooker, 
FI. Bor. Am. ii. 226. C. granularoides, Sc/m. An. tab.; 
Dewey, Sill. ix. 262, el x. 47; Kuntli, 453. C. tetanica, 
Schw. et Tor. Mon. 347 {non Schk.). (Tab. LXXXII.) 
Hab. In America septentrionali. From Canada, Todd, 
to tbe mountains of Virginia and North Carolina, Gray, 
Carey. 
Culmus 1-11-ped., gracillimus, acutangulus, scaberrimus, 
basi foliorum rudimentis ferrugineis tectus; pars spicas gerens 
21-6, etiam 12 poll, longa. Folia 1-11 lin. lata, culmo bre- 
viora. Bractece (nisi suprema) vaginatae: superiores culmum 
subsequantes, saepe longiores : infima eo brevior. Vaginas tri- 
quetrse, scabrse: infima 3 lin. ad 1^ poll, longa. Pedunculus 
infimus 1-51 poll, longus, scaber. Spica mascula 1-1 poll, 
longa, lineam lata, pallide ferruginea, plus minus longe pedun¬ 
culata. Spicas fceminece 2-3, rarius 1, a se 8 lin. ad 21 poll., 
vel infima ssepe 10 poll, remotse, 4-11 lin. longac, 2-3 lin. 
latse : suprema sessilis : inferiores insertse vel plus minus longe 
exserte pedunculatse. Squamae masculse pallide ferrugineae, 
obtusse, muticse, nervo viridi infra apicem albidum evanescente, 
vel in superioribus paulo extra producto : rarissime lanceolatse, 
acuminatse, cuspidatae: infima saepe aristata : foemineae albidae, 
margine demum plus minus ferrugineo-tinctae, medio late 
viridi trinervi: inferiores plerumque longe acuminato-cuspi- 
datae, perigynio longiores: superiores eo breviores. Perigy- 
nium Itu^-to fin- longum, H n . latum, obtuse trique¬ 
trum, angulis rotundatis, utrinque obtusum, vel apice subrostel- 
latum, minime subexcurvum. Achenium -Ay-l-po bn. longum, 
fV bn. latum, obcordatum, triquetrum, castaneum, basi styli 
aequali apiculatum. 
In forty-six specimens I find— 
5 had 2 spikes. In all 1 male. 
25 „ 3 
16 „ 4 
82. C. Meadii (Dewey); spicis 3-2 rarius 4-5 oblon- 
gis vel cylindricis remotis, terminali mascula pedunculata 
saepe elongata ferruginea demum pallida, reliquis foemi- 
neis densifloris crassiusculis, superioribus sessilibus eva- 
ginatis ssepe abbreviatis, inferioribus exserte pedunculatis, 
infima subinde remota cylinclrica basi laxiflora; bracteis 
culmo brevioribus; stigmatibus 3 ; perigyniis triquetro- 
ellipticis utrinque attenuatis, ore integro subexcurvo, 
crebre nervosis flavidis, squama ovata obtusa mutica vel 
acuta plus minus cuspidata ferruginea nervo pallido gra- 
nulato longioribus.—C. Meadii, Dewey, Sill. Journ. xliii. 
90 (1842); Tuckerman, Hn. 15; Sartwett, Hxs. n. 80. 
C. panicea, Carey, Gray, Bot. 521. (Tab. LXXXIII.) 
Hab. In America Boreali. Ohio, Illinois, Michigan. 
Culmus 7-20-poll., subvalidus, firmus, apice scaber, basi 
foliis vestientibus tectus; pars spicas gerens 2-14 poll, longa. 
Folia 1-2 lin. lata, culmo multum breviora, rigida, pallide vi- 
ridia, marginibus revolutis. Bractece foliaceae, culmo semper 
breviores: inferiores vaginatse. Vagina infima 2—22 lin. longa. 
Pedunculus infimus 4-7 poll, longus, scaber. Spica mascula 
semper unica, 7 lin. ad 1^ poll, longa, If-2 lin. lata, plus 
minus longe pedunculata, cylindrica vel nunc basi acuta, abbre- 
viata, obovata, ferruginea, demum saepe pallida. Spicce feemi- 
nece 2-1, rarius 3-4, a se subpollicem vel infima 4-9 poll, re- 
rnotaj, 5-15 lin. longae, 3-4 lin. latse, purpureas viridi pictse, 
demum flavescentes, densiflorse: infima saepe basi attenuata. 
Squamae ferrugineo-purpureae, demum pallidiores, praecipue ad 
medium granulatae: masculae saepe decolores, obtusae: rarius 
lanceolate, subacute, infima rarius aristata : foeminee obtuse, 
nrntice, vel acuminate, plus minus (precipue inferiores) cus¬ 
pidate, medio 1-3-nervose. Perigynium l-s. r -2 lin. longum, 
-J\-,-l-w lin. latum, demum flavidum, ore ferrugineo vel conco- 
lori, tenuissime granulatum. Achenium D/y—l- 6 ?i lin. longum, 
-fL-l-Op lin. latum, trigono-obovatum, faciebus basi excavatis, 
pallidum, basi styli equali abrupte apiculatum. 
Iu 102 specimens I observe— 
26 with 2 spikes. In all 1 male. 
65 „ 3 
10 „ 4 
1 „ 5 
In one specimen only was the upper female spike male at apex. 
In three the lower female was compound at base, from an axis 
bearing a perigynium and scale issuing from a perigynium. 
C. panicece, L., cui opt. Carey accedit, certe valde affinis. 
Differt spicis crassioribus, densifloris, mascula semper unica, 
subinde longiori; perigyniis triquetris, nec turgidis, magis 
nervosis, pallidis; squamis longe cuspidatis, 1-3-nervatis; 
culmo rigidiori, scabro. 
Forsan pro varietate majori C. tetanica habenda, quae solum 
differt culmo graciliori, laevi; foliis angustioribus; spicis gra- 
cilioribus, magis remotis; squamis foemineis saepius obtusis, 
muticis; bracteis longioribus. 
83. C. tetanica (Schkuhr); spicis 3-2 rarius 4 ob- 
longis vel cylindricis remotis, terminali mascula longe 
pedunculata ferruginea demum pallida, reliquis fcemineis 
basi attenuato-laxifloris gracilibus omnibus (infima saepe 
subradicali longissime) exserte pedunculatis flavidis; brac¬ 
teis saepe culmo longioribus; stigmatibus 3 ; perigyniis 
triquetro-ellipticis utrinque attenuatis rostellatis, ore in¬ 
tegro recto vel subexcurvo, demum flavidis crebre nervo¬ 
sis nervis prominentibus, squama rotundata obtusissima 
mutica vel ovata acuta abrupte vel sensim cuspidata 
ferruginea margine albida nervo viridi granulato longio¬ 
ribus vel aequantibus.—C. tetanica, Schk. t. 100 et 207; 
Tor. Mon. N. Am. Car. 414; Dewey, Sill. xi. 312; 
Carey, Gray, Bot. 521; Sartwett, Car. Hxs. n. 68. C. 
Woodii, Dewey, Sill. ii. 249 {ser. 2), 1846 ; Sartwett, Hxs. 
n. 79. (Tab. LXXXIV.) • 
K 
I 
