1092 ARBORETUM ET FRUTICETUM BRITANNICUM. 
Genus II. 
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CORE‘MA D. Don. Tur Corema. Lin. Syst. Dice‘cia Triandria. 
Identification. D. Don in New Edin. Phil. Journ., Lindl. in Nat. Syst. of Bot. 
Synonyme. E’mpetrum, in part, L. 
Derivation. From koréma, a broom ; in allusion to the habit of the plant. 
Gen. Char. Calyx 3-leaved, membranaceous, naked at the base. Petals 3. 
Stamens 3. Stigma 6-cleft. Berry globose, 3-stoned. (G. Don.) 
Leaves simple, alternate, exstipulate, evergreen ; scattered, linear, obtuse, 
spreading, flattish above, and revolute on the margin. Flowers in terminal 
heads, sessile, situated on a hairy disk ; white, large: heads having villous 
scales. Berries white. — Shrub small, erect, branchy, rigid, covered with 
resinous dots ; native of the South of Europe. 
Closely allied to E’mpetrum, from which it has been recently separated, 
and requiring the same soil and culture in British gardens. 
# 1, C.a‘LBa D. Don. The white-bervied Corema. 
Identification. D.Don in New Edin. Phil. Journ. 
Synonymes. E’mpetrum album Lin. Sp. 1450.; E. lusitanicum, &c., 
Tourn. Inst. 579.; Erica eréctis, &c., Bauh. Pin.; the white-verried 
Heath, Portugal Crakeberry. 
Engraving, Our fig. 2038. 
Spec. Char., Se. Stem erect. Branches pubescent. 
Leaves linear, with revolute margins ; somewhat sca- 
brous above. (Willd.) A low evergreen shrub. Por- 
tugal. Height 6in. to 12in. Introduced in 1774. 
Flowers white; May. Berries white; ripe Nov. 
Much branched, rigid, sprinkled with resinous dots. 2038. C. Alba. 
# 2. C. Conra‘piz Torrey. Conrad’s Corema. 
Identification. Torrey in Lit., and Gard. Mag., xvii. 
Synonyme. Empetrum Conrad Torrey. 
Engraving. Our fig. 2039 , from Dr. Torrey. 
Spec. Char., &c. Branches glabrous. Leaves ° 8 
subverticillate, alternate, narrowly linear ; 
young glandularly hispidulous, adult gla- 
brous. Flowers in small heads, terminal, 
axillary ; scales of perianth 5—6, obo- 
vate-oblong, smoothish ; stamens 3—4; 
style 3—4-parted; ovary 3—4-celled. 
(Torrey.) An evergreen heath-like un- 2059. C. Conradii. 
der shrub. N. America, in Monmouth, New Jersey, and other districts, 
in sandy fields and in pine barrens. Height 6 in. to 12 in. Introduced in 
18+]. Flowers whitish ; April. Berries small, reddish ; ripe in August. 
Genus III. 
CERATIOLA Michz, Tur Ceratioua. Lin. Syst. Monce’cia Didndria. 
Identification. Michx. F1. Bor. Amer., 2. p. 222.; Lindl. in Nat. Syst. of B 
Derivation. From keration, a little horn ; in allusion to the shape of the cone. aii 
Gen. Char. Calyx 2-leaved, membranaceous, with 4 scales at the base. 
Peials 2, converging into a tube. Stamens 2. Stigmas 6-cleft. Berry 
globose, 2-stoned. (G. Don.) 
Leaves simple, alternate, exstipulate, evergreen ; spreading, needle- 
shaped, obtuse, glabrous, and shining ; marked beneath with a narrow 
