564 ERICACEAE. [Vor IL. 
2. Kalmia latifolia LL. American or Moun- 
tain Laurel. Calico-bush (Fig. 2757.) 
Kalmia latifolia ¥,. Sp. Pl. 391. 1753. 
A shrub with very stiff branches and terete twigs, 
often forming dense thickets, 10°-20° high, rarely 
becoming a tree with a maximum height of about 
4o° and trunk diameter of 18’. Leaves alternate, 
or some of them opposite, or rarely verticillate in 
3’s, petioled, glabrous, oval or elliptic, acute at 
both ends, flat, green on both sides, persistent, 
2’-5/ long, %’-134’ wide; flowers 9//-12’’ broad, 
pink to white, numerous and showy in compound 
terminal corymbs; pedicels bracted and 2-bracteo- 
late at the base, slender, %4/-11%4’ long, densely 
glandular, erect, even in fruit; sepals and corolla 
glandular; capsule depressed-globose, 5-lobed, 
glandular, 2’’/-3/’ in diameter; calyx and filiform 
style long-persistent, the latter falling when the 
capsule begins to open. 
In woods, preferring sandy or rocky soil, New Bruns- 
wick, Ontario, Ohio, to Floridaand Louisiana. Wood 
very hard, brown; weight per cubic foot 44 lbs. Called 
also Clamoun, Spoonwood, Broad-leaved Kalmia, Ivy- 
‘ bush. May-June. ; 
Kalmia latifolia myrtifolia Rand, Rhodod. 125. 1876. 
Low, compactly much branched, seldom over 3° high; leaves not over 134’ long and 3'’-4'' 
wide. Massachusetts. 
3. Kalmia glatca Ait. Pale or Swamp Laurel. (Fig. 2758.) 
Kalmia glauca Ait. Hort. Kew. 2:64. fl. 8. 1811. 
A glabrous shrub, 6’-2° high, with erect or as- 
cending branches, the twigs 2-edged. Leaves op- 
posite or sometimes in 3’s, very nearly sessile, ob- 
long or linear-oblong; mostly obtuse at the apex, 
narrowed at the base, green above, white-glaucous 
beneath, 14/-2’ long, 2/’-6’” wide, the margins 
revolute, often strongly so; flowers in simple um- 
bels terminating the branches, few (1-13), purple, 
5/’-9’’ broad; pedicels filiform, 1%/’-1%4’ long, 
erect, even in fruit; sepals ovate, scarious-margined, 
acutish or obtuse, persistent; capsule depressed-glo- 
bose, glabrous, about 2!4’’ in diameter. 
In bogs, Newfoundland to Hudson Bay and Alaska, 
south to northern New Jersey, Pennsylvania, Michi- 
gan, in the Rocky Mountains to Colorado, and in the 
Sierra Nevada to California. Summer. 
4. Kalmia hirstta Walt. Hairy Laurel. 
(Fig. 2759.) 
Kalmia hirsuta Walt. F\. Car. 138. 1788. 
A branching shrub, 1°-2° high, the branches as- 
cending, hirsute. Leaves oblong or oblong-lanceolate, 
very nearly sessile, flat, or the margins slightly revo- 
lute, villous-hirsute, acute or obtusish, becoming 
glabrate in age, dark green above, lighter beneath, 
3/’-6’’ long; flowers solitary, or rarely 2-3 together 
in the axils, rose-purple, 5’/-9’’ broad; pedicels very 
slender, nearly or quite glabrous; sepals ovate-lan- 
ceolate, acute, or lanceolate, hirsute or ciliate, longer 
than the capsule, at length deciduous; capsule de- 
pressed, about 114’’ in diameter, glabrous, 
In moist pine-barrens, eastern Virginia to Florida. 
May-Aug. 
