374 LXXVIIL ERICACER. LZALEA, 
form, tube villous within, limb 5-parted, spreading; stamens 10 ; 
anthers dehiscent by 2 longitudinal openings; capsule 5-celled, 5- 
valved.—Suffruticose. trailing. Lws. evergreen. 
E. rerens. Trailing Arbutus. May Flower. 
Laws. cordate-ovate, entire; cor. tube cylindrical.—2. Woods, Newfound- 
land to Ky. and Penn. This little shrubby plant grows flat upon the ground, 
10—15’ in length, covered with a hairy pubescence in all its parts. Leaves 
alternate, 2—24’ by 14’, roundish at the end and abruptly tipped with a very 
short point. Flowers very fragrant, white or tinged with various shades of red, 
in small clusters on short stalks. Calyx green, supported by 3 large bracts at 
base. Tube of the corolla hairy within, longer than the calyx, the border in 5, 
rounded, spreading segments. Apr. May. . 
10. KALMIA. 
Named by Linnzus in honor of Peter Kalm, prof. at Abo, Finland. 
Calyx 5-parted ; corolla with 10 prominences beneath and 10 cor- 
responding cavities within, including the 10 anthers; border 5-lobed ; 
filam. elastic; capsule 5-celled, many-seeded.—Beautiful shrubs, na- 
tives of IN. America. Lws. entire, evergreen, corvaceous. £ls. in racemose 
corymbs, white and red. 
1. K. watirotia. Mountain Laurel. Calico Bush. 
Lvs. alternate and ternate, oval-lanceolate, acute at each end, smooth and 
green on both sides; corymbs terminal, viscidly pubescent.—One of our most 
beautiful shrubs, sometimes attaining the height of asmall tree. It is found in 
all the Atlantic States from Maine to Georgia, and W. to Ohio and Ky. in 
woods. The wood is usually very crooked, fine-grained and compact. The 
leaves are 2—3’ long, smooth and shining, acute at eachend and entire. Flow- 
ers in splendid corymbs, white or variously tinged with red, abundant. The 
corolla has a short tube with a spreading limb 9—10” diam. and a 5-lobed mar- 
gin. Leaves narcotic, and poisonous to some animals. May, June. 
2. K. ancustirouia. Narrow-leaved Laurel. Sheep-poison. 
Lvs. ternate and opposite, elliptic-lanceolate, obtuse at each end, smooth ; 
corymbs lateral ; bracts linear-lanceolate.—A beautiful little shrub, smaller than 
the foregoing, 2—4f in height, in marshes and by ponds, Can. to Car. W. to 
Ky. The leaves are acutely and narrowly elliptic, with rounded ends, entire, 
smooth, 1—2’ long and 3 as wide, on short petioles. The flowers are of a deep 
purple, growing in small, axillary fascicles and apparently whorled among the 
leaves, in structure resembling those of the last species, but about half as large. 
Bracts minute, about 3 at the base of each pedicel. This is also said to be poi- 
sonous to cattle. June. 
3. K. cuauca. Glaucous Kalmia. Swamp Laurel. 
Branches ancipitous; lvs. opposite, subsessile, lanceolate, polished, glau- 
cous beneath, revolute at the margin; corymbs terminal, the peduncles and bracts 
smooth.—A delicate shrub, 2f high, found in swamps, &c., Penn., Ky., N. Eng. 
N.to Arc. Am. Stem slender, the branches rendered distinctly 2-edged by an 
elevated ridge extending from the base of each opposite leaf to the next node 
below. Leaves smooth and shining, white underneath, about an inch in length. 
Fiowers 8—10 in each corymb. Corolla about }/ diam., pale purple. Calyx 
red, as is also the very slender peduncle. At the base of each peduncle is a pair 
of concave, obtuse bracts. June. iy 
8. rosmarinifolia. Leaves linear, more revolute, green beneath. 
ll. AZALEA. 
Calyx 5-parted, lobes equal ; cor. subcampanulate, 5-parted, regu- 
lar; sta. equal, erect, shorter than the corolla; anth. dehiscing late- 
rally from the apex; ovary roundish ; sty. straight, included; cap- 
sule 2—3-celled, 2—3-valved, many-seeded.—A little branching, pro- 
