DICOTYLEDONOUS PLANTS 179 
small, pale blue, funnel or salver form, downy within. Sta- 
mens inserted above the middle of the tube, included. Ovary 
of 2 carpels, united at the top by the slender style; stigma 
globose, surrounded by a cup-shaped appendage. Fruit 2 
slender, erect, many-seeded follicles; seeds without tufts of 
hairs.* 
1. A. tabernemontana, Walt. AmsonrA. Stem smooth and gla- 
brous, branched above, 2-3 ft. high. Leaves lanceolate, entire, 
acuminate at the apex, acute at the base, smooth above, with a 
bloom or slightly downy beneath, short-petioled. Flowers numer- 
ous, on bracted pedicels. Corolla-tube slender, smooth or sometimes 
downy above, the lobes narrow, as long as the tube.  Follicles 
slender, spreading, 4-6 in. long; seeds downy. Swamps and wet 
ground S.* 
Il. VINCA, L. 
Perennial herbs or small, slender shrubs; juice not percep- 
tibly milky. Leaves evergreen. Flowers solitary, white, 
blue, or purple. Calyx 5-parted, lobes taper-pointed, glandu- 
lar inside at the base. Corolla salver-shaped, thickened at 
the throat, 5-lobed. Stamens 5, inserted on the upper or 
middle part of the corolla-tube. Ovary of 2 carpels. Pods 
2, slender, cylindrical, many-seeded. 
1. V. minor, L. PERIWINKLE. Stem slender, trailing, often root- 
ing at the nodes, 1-3 ft. long. Leaves ovate, acute at the apex, 
short-petioled, bright green. Flowers axillary, solitary, 1 in. wide. 
Calyx with linear lobes nearly as long as the inflated tube of the 
blue corolla. Matured pods slender, slightly divergent. Introduced 
from Europe and common in gardens.* 
It. APOCYNUM, Tourn. 
Perennial herbs; stems with very tough bark, branched 
above. Leaves opposite, entire. Flowers in terminal and 
axillary bracted cymes. Calyx small, 5-parted, lobes acute. 
Corolla bell-shaped, 5-lobed, with a small, scale-like append- 
age at the base of each lobe. Stamens 5, distinct, inserted 
on the base of the corolla-tube. Ovaries 2, distinct, united 
by the styles; stigma obtuse, 2-lobed. Pods long, slender, 
many-seeded ; seeds with a tuft of hairs.* 
