ILLUSTRATIONS OP THE GENUS CAREX. 
101 
pedalis, triqueter, validus, lsevis, basi foliatus, foliisque mar- 
cidis, reliquiisque pallidis laceratis rudimentisque foliorum 
ferrugineis tectus; pars spicas gerens 3-5 poll, longa. Folia 
1-2 lin. lata, firma, carinata, culmo breviora, apice triquetra, 
scabra. Bractea? 2-3, foliacese, evaginatse : infima culmum 
subsequans : auricula; oblongse, ferruginese. Pedunculus in- 
fimus 1-11 poll, longus, setaceus, subindc contortus. Spica 
mascula 6-8 lin. longa, sub lineam lata, sessilis vel breve pe¬ 
dunculate Spica fceminea 4-8, quandoque apice parce mas- 
cuke, 3-8 lin. longse, 2 lin. lata;: superiores breviores, ovate, 
sessiles, arete contiguge : inferiores oblongse, deorsum xnagis 
remote longeque pedunculate: infima 1-21 poll. remota, 
basi laxiflora, nutans vel pendula. Squama masculse ferrugineo- 
purpurese, vel omnes atro-purpurese, nervo pallidiore, mutica;: 
foeminese inferiores longiores. Perigynium l-®,-- lin. longum, 
■A-ro En. latum, utrinque leviter nervaturu, (sub lente) tenuis- 
sime granulatum. Achenium fo~ro lin. longum, A,—nr lin. 
latum, insequaliter triquetrum, pallide ferrugineum, angulis 
pallidioribus, tenuissime punctulatum, basi styli tequali ab- 
rupte apiculatum. 
This species lias much of the aspect, and in some respects the 
habit of O. rigida, Good., from which it differs in the number of 
its spikes, its 3 stigmas, triquetrous achenium, and nerved peri¬ 
gynium. The existence of 3 stigmas in C. rigida is very rare. 
In one of the florets from a specimen of Wright, I found a filiform 
racheola longer than the achenium. It belongs to the Micro- 
rhynchcB of Drejer. 
247. C. xniliacea (Muhlenberg); spicis 4 rarius 3-5 
gracilibus cylindricis flavescenti-viriclibus demum pallide 
ferrugineis basi attenuatis, terminali mascula vel apice 
rarius medio feeminea pedunculata nutante, foemineis 
approximate nutantibus vel pendulis, supremo ssepe ses- 
sili inferioribus basi verticillatim vel alternating dissiti- 
floris setaceo-pedunculatis, infima subremota obsolete vel 
breve vaginata ; bractea infima foliacea, plerumque culmo 
longiore; stigmatibus 3 ; perigyniis oblongo-ovatis acu- 
minatis tenuiter rostellatis, ore membranaceo integro vel 
emarginato, enerviis rarius parce nervatis superne vacuis 
subcontortis vel excurvis interne trigonis flavescenti- 
viridibus tenuissimis glabris squama ovata vel lanceolata 
acuminata vel obtusa truncata rarius emarginata cuspi- 
data albida, nervo viridi longioribus latioribusque.—C. 
miliacea, Muhl. 257; Willd. 290; Schk. 77. 0 . 0 . 0 .; 
Dll. 552 ; Dewey, x. 30 ; Schw. et Tor. 353 ; Darlington , 
39 ; Kunth, 469 ; Carey, 526 ; Sartwell, Decs. n. 114; 
Chapman, 538. C. prasina, Wahl. Act. 161. (Tab. 
CCC.) 
Hab. In America septentrionali. Canada to the 
mountains of Georgia. 
Culmus 1|—2-pedalis, gracilis, debilis, superne scaber, basi 
foliatus, apice nudus; pars spicas gerens 2%-7 poll, longa. 
Folia ljj-2 lin. lata, culmo breviora, plana, graminea. Bractea 
infima plerumque culmo longior, obsolete vel breve vaginata : 
superiores setacese. Vagina 1—6 lin. longa, ligula membranacea 
oblonga amplectens, pallida. Pedunculus infimus i-l| poll, 
longus, setaceus, scaber. Spica terminalis mascula vel apice 
rarius medio feeminea, basi attenuata, laxiflora, 1-2 poll, longa, 
1 lin. lata, nutans. Spicce feeminea SEepius 3, infima 1-3 r 
poll. remota, inferiores flosculis basi verticillatim vel alternatim 
laxe dispositis, nutantes vel penduke. Squamae omnes albida;, 
demum pallide ferruginese, margine hvalinse, nervo viridi vel 
ferrugineo : masculse lanceolata;, acuta;, muticse vel mucronu- 
latse : feeminea; ovate vel lanceolata;, acuminate: vel obtusse, 
truncate, rarius emarginate, cuspidate. Perigynium l-m__?_ 
lin. longum, f w lin. latum, basi antice angulo achenii disten- 
tum, superne vacuum; rostello tenui, albido. Achenium 
lin. longum, -/y lin. latum, circumscriptione subrotundo-obo- 
vatum, triquetrum: angulis medio incrassatis, lateribus in- 
signiter concavis: pallide castaneum ; basi styli demum de¬ 
cidua. 
No author has confidently decided on the affinity of this species. 
Tuckerman places it among his Acutce. Carey thought it was not 
allied to any of the American species he had described, and for 
convenience placed it in his Anomalce, with C . scabrata and 0. 
Szdlivantii. Both he and Dewey thought that in aspect it was 
like some forms of G. crinita. The perigynium has a general re¬ 
semblance to that of O. torta, but the peculiar achenium, and the 
yellowish-green colour of its spikes, and the white scales with their 
green nerve and mucro, separate it from the Melanostachyce of 
Drejer, which include the Acutce. Its inflorescence is like that of 
G. gracillima and its allies. The achenium, with its concave sides 
and angles incrassate at the middle, is like that of C. glaucescens 
and 0 . scabrata, and I am inclined to place it with the last. 
The emargination of the scales is by no means constant. Dewey 
remarks that it is so slight as to require nice examination. Torrey' 
describes them as acuminate, and Carey as ovate. I have not 
seen any specimens south of Virginia, Elliott has none in his 
Herbarium, and he quotes Pursh for its locality. Chapman finds 
it in the mountains of Georgia. 
248. C. Wahlenbergiana (Boott); spica elongata ferru- 
ginea rarius pallida concolori, e spicis partialibus singulis 
sub 8 (ambitu lanceolato) compactis, inferioribus remotis 
exserte pedunculatis subduplicato pinnatim compositis, 
basi ramosis, ramis appressis, usque ad basin spiculiferis; 
spiculis lanceolatis erectis congestis apice plus minus mas- 
culis; bracteis superioribus culmo longioribus; stigmati¬ 
bus 3 ; perigyniis lanceolatis plano-triquetris rostratis bi- 
fidis glabris marginibus serratis nervatis rectis, squama 
late ovata acuta vel obtusa subemarginata striato-nervosa 
glabra aristata ferruginea margine albo-hyalina nervo 
viridi angustioribus longioribusque.—C. Wahlenbergiana, 
Boott. C. Indica, Wahl. Act. 149 ( excl. Lin.) ; Willd. 
246 {excl. Lin. Mant.) ; Schk. f. 206 {excl. Lin) ; 
Boiret, Dncy*Suppl. iii. 240 (1813); Kunth {ejus descr. 
excl. Lin., Nees). {Non Lin. Mant.; nec Lamarck, Kncy. 
iii. 385 (1783), nec Nees .) C. Persoonii, Schk. (Tab. 
CCCI.) 
TIab. In insulis Bourbon et Mauritius, et in Abys¬ 
sinia. 
Yar./3; perigyniis squamisque scabris. (Tab. CCCII.) 
Var. 7 ; perigyniis omninovel superne tantum scabris, 
rostro breviori. (Tab. CCCIII.) 
Yar. S. Schimperi; culmo altiori; foliis glaucis; brac¬ 
teis superioribus culmo brevioribus demum obsoletis; 
perigyniis 3/ 0 —& lin. longis, py lin. latis, squamis sub- 
inde muticis, spathella vix gibbosa. (Tab. CCCIV.) 
Hab. In Abyssinia, ad montem -Silhe, alt. 9-10,000 
ped., Schimper, n. 545 (1852), Herb. Mus. Baris. 
Var. e; brevifolia. (Tab. CCGV.) 
Culmus 2-pedalis, lsevis. Folia 2-4 lin. lata, culmum sub- 
sequantia. Bractea inferiores vaginata;, culmum sequantes; 
superiores anguste, eo longiores. Vagina infima ] i-2f poll, 
longa. Pedunculi 1-3 poll, longi, scabriusculi. Spicce par- 
tiales 1-3| poll, longae, 6—8 lin. late: inferiores ramis erectis 
coarctato-aggregatis. Spicule/? 5-9 lin. longte, 2 lin. latte, 
erecte, appressse, rarius patentes, contiguse. Perigynium 2-3,,- 
lin. longum, xere lin. latum, bifidum, plerumque rectum; 
laciniis ~ lin. longis, acutis vel obtusiusculis, carinato-com- 
