394 
CEPHELANTHUS— CHE LONE. 
spikes, woolly, bractcd ; leaves decirrent, 
toollied, spiny. Ex. 
ni'grn, (black knapweed, p. Au, 2X-) 
lower leaves angular-lyrate, upper ones 
ovate ; scales of the involucre ovate, cilia- 
ted with capillary teeth. 2 f. Ex. 
srabio'sa, (scabrous centaury, 21.) leaves 
pimiatilid, roughish ; divisions lanceolate, 
spreading, acute-pinnatitid at the base ; in- 
volucre ciliate. Ex. 
suaveo'lensi, (yellow sultana, @,) leaves 
iyrate-pinnatifid ; involucre smooth. Ex. 
moscha'ta, (sweet sultana, ^.) leaves 
slightly pinnatifid ; lower divisions naostly 
entire ; involucre smooth. Ex. 
CENTATJREL"LA. 4—1. (Gcntianece.) 
pan/cula'ta, (Sept. @.) stem branched, 
smooth ; peduncles opposite ; leaves mi- 
nute, subulate ; Howers in panicles. Damp 
grounds. Flowers small, gi-eenish-white. 
4-8 i. 
ver"na, (w. M-r. 0.) stem simple, few- 
flowered ; corolla thrice as long as the 
calyx ; style as long as the germ. 4-8. S. 
CEPHALAN"THUS. 4—1. {Ruhaca.) [From 
kephule, head, anthos, flower.] 
occidenta'lis, (button bush, w. Ju. ^.) 
leaves opposite, and in threes, oval, acu- 
minate; inflorescence a round head. 
Swamps. Var. pubes'cens,h&s the leaves 
and the branchiets pubescent. 4-5 f. 
CERATIO'LA. 20—2. (Euphorbea;.) 
eticoi'des, (Au. ^ .) branchiets sub-tomen- 
tose ; leaves whorled, narrow, linear, 
smooth. An evergreen shrub. 4-6 f. 
CERAN"THERA. 13—1. {Labiatcee.) [From 
keras, horn, a.ndanthos, flower ; anthers bear- 
ing horns.] 
Unearifo'lia, leaves opposite, linear, some- 
times clu.stored; stem glabrous, branching; 
racemes terminal ; peduncles opposite. 12 i. 
CERAS"TIUM. 10—5. (Caryophyllea:.) [From 
kera^, horn, alluding to the form of its cap- 
sule.] 
vulga'iiim, (mouse-ear, chickweed, w. 
Ap. @.) hirsute, viscid, cespitose ; leaves 
ovate ; petals oblong, about equal to the 
calyx; flowers longer than the peduncle. 
6-10 i. 
visco'aum, (sticky chickweed, w. J. ^.) 
hairy and viscid, spreading ; leaves oblong- 
lanceolate; flowers somewhat panicled, 
shorter than the pedicels. 4-6 i. 
nu'tans, (w. J. 0.) viscid and elongated ; 
stems erect, deeply striate; leaves elon 
gated, distant, linear-oblong, acute ; petals 
oblong, biHd at the tip, longer than the ca 
Ij^x; peduncles much longer than the flow- 
ers. 6-12 i. 
ohloagifo'linm, (w. J. 2^.) cespitose; pu- 
bescent ; stem erect, terete even ; leaves 
lanceolate-oblong, rather acute, .shorter than 
the joints; flowers terminal, shorter than 
the pedicels; petals obovate, bifid at the 
tip, twice the length of the calyx. 6-12 i. 
CERAS"US. (See Pru'nus.) 
CERATOPHYL"LUM. 19-12. (Onagrm.) 
[Named from the horned divisions of the 
leaves.] 
dcm^yr'sum, (hornwort, Ju. H.) fruit arm- 
id with 3 spines ; stem long, slender ; leaves j 
verticillate in 8 ; flowers axillary, solitary 
very minute. 
submet-"sum, [TX.) leaves dichotomous in 
three pairs; fruit without spines. In water 
CER"C1S. 10 — 1. (Leguminosce.) 
canaden"sis, (red-bud, judas-tree, r. M. 
leaves round heart-fomi, acuminate, 
villose at the axils of the nerves ; stipules 
minute; legumes short-stiped. Yax.pubes"- 
cens, has roundish, acute leaves, pubescent 
beneath. 15-30 f. 
CETRA'RIA. 21—5. (Alga.) [From cetra, 
a buckler.] 
islarid"ica, (the Iceland lichen, Iceland 
moss,) frond olive-chestnut- brown, at the 
base reddish-white, white beneath ; divis 
ions erectish, sub-linear, many-cleft, chan. 
nelled, tooth-ciliate, the fertile ones dilated 
receptacles close-pressed, flfit, 1 colored; 
margin frond-like, elevated, entire. On 
sandy plains, as on the barren plains near 
Beaver pond, in New Haven, where it cov-i 
ers the eaith very densely in many places 
CHAM.^'ROPS. 6—3. (Palma.) [From 
chamai, on the ground, ops, appearing.] 
serrula'ta, (E. Ju. 1?.) caudex creeping , 
stipes sharply serrate ; fronds plaited, pal- 
mate. Fronds 2 f. S. 
palmetf'to, (Ju. Tp.) caudex arborescent; 
stipes unarmed; spathes doubled; fronda 
plaited, palmate ; fronds 5-6 £. Florida. 
ClIA'RA. 19—1. {Naiades.) [From chairo, 
to rejoice, because it delights in water.] 
vul^a'ris, (feather-beds, Ju. @.) stem and 
branches naked at the base ; branches te 
rete, the joints leafy ; leaves oblong, subu. 
late ; bracts shorter than the berry. Grows 
in ponds and ditches. 
Jleacf'ihs, (Au. @.) stem translucent, na- 
ked ; branchiets jointless, leafless, com 
pressed ; berries lateral, naked. 
CHEIRAN"THUS. 14—2. (Crucifera.) [From 
chcir, hand, anthos, flower, the blossoms re- 
senibling the fingers.] 
chei'ri, (wall-flower, J. 11') leaves lance- 
olate, acute, glabrous; branches angled 
stem somewhat of a woody texture. Ex. 
an"nuus, (stock july-flower. Ju. leaves 
lanceolate, sub-dentate, obtuse, hoary; si- 
lique cylindric, with an acute apex. Ex. 
pallas"ii, (v. Ju. $ .) stem simple, terete, 
somewhat glabrous; leaves glabrous, lan- 
ceolate-linear, tapering, repand-toothed. 
inca'nus, (brompton stock, $ .) leaves 
lanceolate, entii'e, obtuse, hoary, silique 
ti-uncate, compi-essed at apex. Stem 
somewhat of a woody texture. Ex. 
CHELIDO'NIUM. 12—1. (PapaveracecE.) [From 
chelidon, a swallow, because it blossoms 
about the time this bird appears.] 
ma jus, (celandine, y. M. 2^.) umbels ax- 
illary, peduncled ; leaves alternate, pinnate, 
lobed. Naturalized. 
CHELO'NE. 13—2 (Bignonioe.) [From c/ie- 
lone, a tortoise.] 
glu'bra, (snake-head, w. and r. Ju. 2^.) 
leaves opposite, lance-oblong, acuminate, 
serrate ; spikes terminal, dense-flowered. 
Var.«Z"ia,leaves sub-se.ssile ; flowers white. 
Var. piirpu^rea,leave8 short-petioled ; flow- 
ers purple. Var. lanceo^yta,\e' wes lanceo- 
late, acuminate, sen-ate, sessile pubescent 
