ERICACEJE. (HEATH FAMILY.) 
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12, RHODODENDRON, L. Rose-bay. 
Calyx 5-parted, mostly small. Corolla bell-shaped or partly 
funnel-form, sometimes slightly irregular, 5-lobed. Stamens 10 
(very rarely fewer), commonly declined : anthers, pods, &c., as 
in Azalea. — Shrubs or low trees with evergreen entire alternate 
leaves, and large showy flowers in compact terminal corymbs or 
clusters from large scaly-bracted buds. (‘Po&ofevbpov, rose-tree , 
the ancient name.) 
1. R. maximum, L. (Great Laurel.) Leaves elliptical- 
obloner or lanceolate-oblong, acute, narrowed towards the base ,, very 
smooth, with somewhat revolute margins; corolla bell-shaped.— 
Damp deep woods, sparingly in New England and New York, but 
very common along shaded water-courses in the mountains of Penn, 
and southward. July.-Shrub or tree 6»-20» high. Leaves 4'-10' 
long, very thick. Corolla 1'broad, pale rose-color or nearly white, 
greenish in the throat on the upper side and spotted with yellow or 
reddish. 
2. R. I*app6lllcillll, Wahl. (Lapland Rose-bay.) Dwarf, 
prostrate ; leaves elliptical, obtuse, dotted, both sides like the branches 
with rusty scales; umbels few-Bowered; corolla open bell-shaped, 
dotted; stamens 5-10. — Alpine summits of the White Mountains, 
New Hampshire, and Mount Marcy, New York. Juy. —- ^ ru 
high, forming broad matted tufts; the leaves £' long. Corolla violet- 
purple. 
13. KALMIA, L. American Laurel. 
Calyx 5-parted. Corolla between wheel-shaped and bell-shap¬ 
ed, 5-lobed, furnished with 10 depressions in which the 10 an¬ 
thers are severally lodged until they begin to shed their pollen: 
filaments thread-form. Pod globose, 5-celled, many-seeded.— 
Evergreen mostly smooth shrubs, with alternate or opposite entire 
coriaceous leaves, and showy flowers in umbel-like corymbs. 
Pedicels bracted. Flower-buds naked. (Dedicated to Peter Kalm, 
a pupil of Linnseus who travelled in this country about the middle 
of the last century.) 
1. It. latifolia, L. (Calico-bush. Mountain Laurel.) 
Leaves mostly alternate, bright green both sides, ovate-lanceolate or el- 
liptical, tapering to each end, petioled; corymbs terminal, many- 
flowered, clammy-pubescent. — Rocky hills and damp soi , rat er 
common from Maine to Ohio, as a shrub 4°-8P high, but in t e 
mountains from Penn, southward forming dense thickets, an o en 
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