62 
ILLUSTRATIONS OF THE G-ENUS CAREX. 
omnes vel superiores apice masculse vel steriles: suprema ses- 
silisj evaginata, reliquse plus minus longe exserte pedunculate: 
infima subinde 10 poll, remota, pendula: olivacese, demum 
fulvse. Squamae conformes, lanceolate, muticse vel ssepius 
cuspidate. Perigynium 5^-7 \ lin. longum, sub-2 lin. latum, 
horizontaliter divergens, rarius [sub lente ) rostro ad apicem 
scabriusculo. Achenium l-l T s o- lin. longum, l T 4 -g- lin. latum, 
angulis acutissimis prominentibus, faciebus concavissimis, basi 
styli contorti crassiori abrupte apiculatum. 
I am indebted to Mr. Carey for a large suite of beautiful spe¬ 
cimens of this species, sent to bim by Dr. Short from Louisville 
in Kentucky. I find in 104 specimens— 
1 with 3 spikes. 1 with 1 male. 
24 
39 
32 
6 
2 
4 
5 
6 
7 
8 
34 
46 
21 
2 
2 
3 
4 
5 
70 with 2 female. 
33 „ 3 
1 „ 4 
The more numerous male spikes, the remote, fewer female ones, 
the horizontally diverging perigynia, and the acute even angles of 
the achenium, distinguish this species from the preceding ones. 
152. C. hystricina (Muhlenberg); spicis 3-4 rarius 
5 stramineis densifloris approximatis, terminali mascula 
(rarius androgyna apice vel basi mascula) gracili cylin- 
drica subsessili, reliquis foemineis oblongis vel cylindricis 
crassis squarrosis, suprema sessili, superioribus vel omni¬ 
bus evaginatis cernuis vel infima remota exserte pedun- 
culata nutanti subinde basi composita; bracteis culmo 
longioribus; stigmatibus 3; perigyniis elliptico-ovatis 
in rostrum longiusculum attenuatis bifidis inflatis glabris 
nervosis, squama ovata acuta vel emarginata longe his- 
pido-cuspidata ciliata latioribus longioribusque.—C. hys¬ 
tricina, Muhl. 252 ; TTilld. 282; iSchk.f. 127; Kunth, 
497; Deivey, x. 35; Seim, et Tor. 355; Elliott, 550; 
Darlington, 352 ; Beck, 441 ; Carey, 531 ; Sartivell, Exs. 
136. C. Cooleyi, Dewey, xlviii. 144. (Tab. CLXY.) 
Hab. In America septentrionali, Canada to Georgia. 
Culmus l-l^-ped., rigidus, acutangulus, scaberrimus, basi 
foliatus, rudimentis foliorum purpureis vaginisque reticulato- 
fissis tectus; pars spicas gerens 2-8 poll, longa. Folia 1|-2| 
lin. lata, culmo breviora, firma. Bract ecu foliacese : inferiores 
culmo longiores : infima rarius plus minus vaginata. Vagina 
3-12 lin. longa. Pedunculi graciles, ^-3^ poll, longi, scabri. 
Spica mascula 8-16 lin. longa, l-lq lin. lata, rarius andro¬ 
gyna, apice vel basi mascula. Spices foemineae 6-18 lin. longse, 
6-7 lin. latte, approximate vel contiguse: superiores vel omnes 
e vagi mite : suprema sessilis: reliquse pedunculate, cernuse, 
vel infima remota, vaginata, plus minus longe exserte pedun- 
culata, subinde basi composita. Squamce omnes apice ciliata;: 
inferiores longius cuspidate: superiores acute. Perigynium 
2 T H 0 —3 lin. longum, latum, utrinque phrrinervium; ore pos¬ 
tice ssepe oblique secto. Achenium -p,, lin. longum, H hn. 
latum, obovatum, acute triquetrum, faciebus concaviusculis, 
basi styli crassiori apiculatum, castaneum. 
Affinis C. tentaculatce, Muhl., quie planta robustior perigy- 
niisque majoribus magis turgidis, nervis magis distantibus, 
rostro ssepe scabro, achenio elliptico, stylo contorto, spicis 
brevius pedunculatis nec nutantibus, bracteis longioribus, 
gaudet. 
153. C. echinochloe (Kunze); spica decomposita pal¬ 
lida, e spicis partialibus ambitu lanceolatis 6-10 pluri- 
busve, superioribus simplicibus sessilibus confertis, infe- 
rioribus basi ramosis laxis exserte pedunculatis remotis 
longe foliaceo-bracteatis; spiculis oblongis apice parce 
masculis basi flosculis foemineis pluribus laxe dispositis, 
in quaque spica 5-6 simplicibus, vel inferioribus remoti- 
usculis 2—4 compositis; bracteis inferioribus culmo lon¬ 
gioribus ; stigmatibus 3; perigyniis ovalibus trigonis 
rostratis bifidis (laciniis truncatis) glabris superne mar- 
gine ciliato-serratis nervatis pallidis rectis vel excurvis, 
squama ovata acuta vel obtusa saepe emarginata hispido- 
aristata striato-nervosa apice scabriuscula pallide castanea 
sequilata longioribus.—C. echinochloe, Kunze, 47. t. 12; 
Richard, El. Abyssin. ii. 513. (Tab. CLXVI.) 
Hab. In Abyssinia. “ Locis apricis lapidosis, inter 
gramina partis superioris Montis Scholoda,” Schwvper, n. 
26, Un. Itin.; “ Alsega, ad montes, 6000 ped.,” Schimper, 
n. 538. 
Culmus 1^-2-ped., triqueter, validus, lsevis, foliatus; pars 
spicas gerens 7-10 poll, longa. Folia 3-41 lin. lata, culmo 
longiora, flavescentia. Bractece inferiores 2-3 lin. late, culmo 
longiores: supremse setacese, spicis suis breviores. Vaginas 
superiores scabri; infima 1-2 poll, longa. Pedunculus infi- 
mus 21-31 poll, longus, scaberrimus. Spices partiales infe¬ 
riores 11 poll, longa;, 4-5 lin. latte. Spicules 5 lin. longse, 
2 lin. late. Squamce conformes, apice ciliate: mascuhe an- 
gustiores. Spathella apice ciliata, integra vel emarginata. 
Perigynium 1 T S „ lin. longum, T 7 - 0 lin. latum, ad basin spicuhe 
plus minus excurvum, rostrum oblique vel aequaliter bifidum; 
kicinim truncate vel rotundato-obtusEe, barbulatse. Achenium 
1- po- lin. longum, -'y lin. latum, ovale, trigonum, fuscum, angu¬ 
lis pallidioribus. 
One of the Indices- group, with the spiculse issuing front a spa¬ 
thella or modified perigynium, exhibiting that constant composi¬ 
tion of spike which is occasionally only observable from almost 
normal perigynia in other and simpler groups. 
154. C. teres (Boott); spicis 6-11 cylindricis elon- 
gatis teretibus approximatis nutantibus fusco-purpureis, 
superioribus 3-4 basi rarius apice et basi masculis, reli¬ 
quis foemineis evaginatis pedunculatis cernuis, inferiori¬ 
bus late foliaceo-bracteatis, infima interdum remota vagi¬ 
nata basi composita; stigmatibus 2 ; perigyniis ( imvna - 
turis) ovalibus rostellatis, ore integro vel emarginato, fer- 
rugineo-punctatis nervatis, squama oblonga trancata vel 
emarginata longe hispido-cuspidata medio viridi trinervi 
atro-purpurea latioribus brevioribusque. (Tab. CLXYII.) 
Hab. In Himalaya orientali temperata, ad Sikkim, alt. 
8-9000 ped., Hooker; Khasia, 5-6000 ped., Hooker et 
Thomson. 
Culmus sub-2-ped., acutangulus, firmus, Levis, vel superne 
scabriusculus, foliatus, basi rudimentis ovatis ferrugineis folio- 
rum vaginisque reticulato-fissis tectus; pars spicas gerens 5-8 
polliees longa vel longior. Folia 3-4 lin. lata : superiora cul- 
mum subsequantia, plana, firma, tricostata. Bractece inferiores 
2- 31 lin. late, culmo longiores: superiores demum spicis suis 
breviores, setacese. Auriculae ferruginese, elongate, alligate. 
Pedunculi 1-6 lin. longi, graciles, lseves. Spicce 2-4^ poll, 
longse, 1-2 lin. late: infima rarius remota, subradicalis, vagi¬ 
nata. Squama omnes conformes. Perigynium ( fioriferum ) 
1 i lin. longum, T 7 - lin. latum. Achenium immaturum. 
A C. notha, Kunth, differt, spicis pluribus, angustioribus, 
teretibus, superioribus 3-4 basi vel apice et basi masculis; 
squamis majoribus, omnibus longe hispido-cuspidatis; perigy¬ 
niis ore integro, foliis bracteisque latioribus. 
Though the specimens of this species are not mature, I think 
they are separable from O. notha. I have figured a perigynium 
(the lower one) from some imperfect specimens, found by Dr. 
