1060 APOCYNACEAE 
Leaf-blades elliptic to elliptic-ovate, eciliate: calyx-lobes eciliate: follicles beak- 
1. V. minor. 
ess 
Leaf-blades ovate to deltoid-ovate, ciliate: calyx-lobes ciliate: follicles 
beaked. 2. V. major. 
1. V. minor L. Leaf-blades subcoriaceous, 1-5 cm. long, narrowed to a short 
petiole: ealyx-lobes lanceolate, 3-4 mm. long, Ed. corolla 1.5—2 em. wide: 
foliele 2.5 em. long or less,—Roadsides, 
h anks, and cult. grounds, various 
shade 
provinees, Ga. to Ark. and Ont.—Nat. of 
Eu. 
V. major L. Leaf-blades membranous, 
4-7 em. long, eared petioled: calyx- 
lobes subulate, 9-1 long, pee at 
Plain, Ga. and S. C.—Nat. of Eu.—These 
periwinkles were brought to Ameriea from | 
Europe by the early e in the eastern 
B 
United States. y means of the creeping 
stems, plants soon spre ET from gardens to 
roadsides and even into woodlands. 
5. CATHARANTHUS G. Don. Erect herbs. Leaves opposite. Corolla 
variously colored or white: tube with a contracted mouth. Follicle narrow.— 
Three species, the ME and two in the ; 
Old World tropic 
1. C. roseus (L. . Don. Stems 2-7 dm 
tall: leaf-blades oblong to oblong- cuneate, 
-8 em. long: calyx-lobes linear- pops 
k, 
lobes abruptly pointed: f 2—3 
long. [Vinca rose rocallis rosea 
Small ]-— (PERIWIN D- 
lands, hammocks, waste-places, roadsides, 
and cult. grounds, pen. Fla. and the Keys, 
Nat. of Madagascar (?).— (W. I., n 
C. A., S. A.)—This showy plant has ta EN 
possession of aeres of serub land in mop peninsular Florida, 
6. NERIUM [Tourn.] L. Shrubs or trees. Leaves opposite: blades rela- 
ae narrow. Corolla salverform, the throat pane with toothed scales 
the mouth: the lobes spreading, broad. 
POIs en. —Three species, Eun. 
. N. Oleander L. Tree becoming 10 m. tall, 
shrub: leaf-blades narrowly elliptic to 
Nes -elliptic, 6-15 em ee nd -veine 
on g: 
ealyx-lobes lanceolate, 4.5 lon 
corolla white to rose-purple or f 
lim AL m. wide, the lobes obliquely 
apieulate: follieles 1-2 dm. long. LEAN- 
DER. )—Roadsides, fields, and edges of woods, 
C 1 Plain, 0 a 
as f . of the 
Levants and cult.— — (IF. I.\—Al year.—The 
sap is exe diu id po In some varie- 
ties the leaves co a good oo of 
rubber, in others po non 
