86 
CENTAUREA—CHELONE. 
coccife'rof, frond foliaceous, minute ; divisions round, crenate,naked beneath; 
peduncles long-turbinate, naked, warty-scabrous, pale yellowish, cinereous 
and green; all bearing cups, which are wine-glass form ; margin extended, 
fertile ; receptacles rather large, at length roundish, scarlet. 
CENTAUREA. 17—3. ( Cinarocephala .) [From Chiron , the centaur , who is said to have 
cured a wound in his foot with the plant.J 
cya'nus , (great blue-bottle, b. w. r. J. <f>.) scales of the calyx serrate; leaves 
linear, entire ; lower ones toothed. Naturalized. 
america/na, (great American centaury, <v>.) stem branching; leaves sessile, 
lower ones oblong-ovate; upper ones lanceolate, acute; peduncles thick at 
the apex. 2 f. 
benedic"ta, (blessed thistle, y. J. 0.) scales of the involucre doubly armed 
with spikes, woolty, bracted ; leaves decurrent, toothed, spiny. Ex. 
CENTATJRELLA. 4—1. ( Gentianecb .) 
panicula'ta, ( Sept. Cgh) stem branched, smooth; peduncles opposite; leaves 
minute, subulate; flowers in panicles. Damp grounds. Flowers small, 
greenish-white. 4-8 i. 
CEPIIALANTHUS. 4—1. ( Rubiacece .) [From kephale , head, anthos , flower.] 
occidenta'lis , (button bush, w. Ju T^.) leaves opposite, and in threes, oval, acu¬ 
minate. Inflorescence a round head. Swamps. Var. pubescens ; has the 
leaves and the branchlets pubescent. 4-5 f. 
CERATIOLA. 20—2. ( Eupliorbece .) 
erico'ides , (An. by) branchlets sub-tomentose; leaves whorled, narrow, linear, 
smooth. An evergreen shrub. 4-6 f. 
CERAST1UM. 10—5. ( Caryopliyllece .) [From keras, horn, alluding to the form of its capsule.] 
$ vulga'tum , (mouse-ear, duckweed, w. Ap. ©.) hirsute, viscid, cespitose ; 
leaves ovate; petals oblong, about equal to the calyx; flowers longer than 
the peduncle. 6-10 i. 
CERCIS. 10—1. ( Lcguminosce .) 
canaden"ds, (red-bud, judas-tree, r. M T?.) leaves round heart-form, acumi¬ 
nate, villose at the axils of the nerves; stipules minute; legumes short-sti- 
ped. Var. pubescent , has roundish, acute leaves, pubescent beneath. 15-30 f. 
CETRARIA. 21—5. (Alga.) [From cetra, a buckler.] 
island r 'ica , (the Iceland lichen, Iceland moss,) frond olive-chestnut-brown, at 
the base reddish-white, white beneath; divisions erectish, sub-linear, 
many-cleft, channelled, tooth ciliate ; the fertile ones dilated ; receptacles 
close-pressed, flat, 1-coloured; margin frond-like, elevated, entire. On 
sandy plains, as on the barren plains, near Beaver-pond, in New Haven, 
where it covers the earth very densely in many places. 
CHAMJEROPS. 6—3. (Palma.) [From chamai, on the ground, ops, appearing.] 
serrula'ta , (E Ju. I 7 .) caudex creeping; stipes sharply serrate ; fronds plaited, 
palmate. Fronds 2 f. S. 
CHEIRANT1IUS. 14—2. (Crucifera.) [Fioxri chef hand, anthos , flower, the blossoms re¬ 
semble the fingers.] 
chei'ri , (wall flower, J. Qj-O leaves lanceolate, acute, glabrous ; branches ang¬ 
led; stem somewhat of a woody texture. Ex. 
an ll nuus, (stock july-flower, Ju. <v>.) leaves lanceolate, sub-dentate, obtuse, 
hoary ; silique cylindric, with an acute apex. Ex. 
CHELIDONITJM. 12—1. (Pap aver ace a.) [From chelidon , a swallow, because it blossoms 
about the time this bird appears.] 
ma'jus, (celandine, y. M. 7|_.) umbels axillary, peduncled; leaves alternate, 
pinnate, lobed. Naturalized. 
CHELONE. 13-2. ( Bignonia .) [From chelone, a tortoise.] 
gla'bra , (snake-head, w. and r. Ju. A*) leaves opposite, lance-oblong, acumi¬ 
nate, serrate; spikes terminal., dense-flowered. Var. alba , leaves sub-ses¬ 
sile; flowers white. Yar. purpurea, leaves short-petioled ; flowers purple. 
Yar. lanceolata , leaves lanceolate, acuminate, serrate, sessile, pubescent 
beneath; segments of the calyx oblong. Damp. 
