CLETHRACEAE 987 
S or partly woody plants with 
rootstoc Fam. 3. PYROLACEAE. 
Shrubs or ees with erect or diffuse stems. Fam. 4. ERICACEAE. 
Ovary wholly or partly inferior Fam. 5. VACCINIACEAE. 
Stamens with ous filaments wholly or partly adnate to 
e coro 
Androecium hot staminodia: caulescent plants. Fam. 6. DIAPENSIACEAE. 
Androecium with staminodia: acaulescent plants. Fam. 7. GALACACEAE 
Famity 1. CLETHRACEAE — WHITE-ALDER FAMILY 
Shrubs or trees, the pubescence of branched hairs. Leaves deciduous: 
blades mostly toothed. owers in racemes or panicles. Calyx of 5 per- 
nthesis. 
3 united carpels: stigmas 3. Fruit a 3-valved loculicidal capsule—Only 
the following d, and about 30 species, widely distributed, except in 
Europe and Afri 
1. CLETHRA [Gronov.] L. Erect shrubs or trees, with toothed leaf-blades 
and elongate racemes or panieles.—Sum.—PEPPERBUSHES. WHITE-ALDERS. 
Filaments glabrous: style pubescent: racemes erect. 
Sepals ee leaf-blades glabrous beneath, or nearly so. 
1. C. alnifolia. 
Sepals obtuse: leaf-blades tomentose beneath. 2. C. tomentosa. 
Filaments pu Peers style glabrous: racemes nodding. 3. C. acuminata. 
1. C. alnifolia Shrub 1-3 m. tall, the twigs o pubescent: leaf-blades 
obovate or cuneate, 3-8 em. long: pedice els 1-3 mm. long: sepals elliptic to 
n als 5-6 mm. 
mps, low sand 
woods, and wet pin PS Coastal Plain 
and adj. pt Fla. to La. , Pa. and Me. 
The done are very fragrant Pink-flow- 
ered forms are occasio 
2. C. tomentosa Lam. Shrub 1-3 m. tall, 
the twigs tomentose: leaf-blades obovate to 
narrowly or airs cuneate, 4-10 em. long: 
pedicels 2-5 m ong: sepals oval or ovate- 
elliptic, 3-3.5 mm. long: petals 5-6 mm. 
long: capsule spheroidal, 44,5 mm 
species has an extra flov owering season in the 
winter. The inciting cause is not evident. 
3. C, acuminata Michx. Shrub, or tree ee 6 m. tall, the twigs tomentu- 
lose: leaf-blades oval or elliptic, 9-20 em. long: racemes nodding pedicels re- 
curved: sepals ovate, 3.5—4 mm. long, oe petals 6-7 mm. long: capsule ovoid, 
4-5 mm. long, drooping.—Woods, ravines, and cliffs of non-ealeareous rocks, 
inner Piedmont to Appalachian Plateau, Ga. to Tenn., W. Va., and Va. 
FAMiLy 29. MONOTROPACEAE — InpDIAN-PIPE FAMILY 
Saprophytie or humus herbs, with matted roots. Stems seape-like, 
simple. Leaves reduced to scales. Flowers in racemes, or solitary, nod- 
