This section is from the book "An Illustrated Flora Of The Northern United States, Canada And The British Possessions Vol2", by Nathaniel Lord Britton, Addison Brown. Also available from Amazon: An Illustrated Flora of the Northern United States, Canada and the British Possessions. 3 Volume Set..
Trees or shrubs, often climbing. Leaves alternate or opposite, simple. Stipules, when present, small and caducous. Flowers regular, generally perfect, small. Pedicels commonly jointed. Calyx 4-5-lobed or parted, persistent, the lobes imbricated. Petals 4-5, spreading. Stamens inserted on the disk, alternate with the petals. Disk conspicuous, flat or lobed. Ovary sessile, its base distinct from or confluent with the disk, mostly 3-5-celled; style short, thick; stigma entire or 3-5-lobed; ovules 2 in each cell, anatropous. Fruit (in our species) a somewhat dehiscent 2-5-celled pod. Seeds arilled; embryo large; cotyledons foliaceous.
About 45 genera and 375 species, widely distributed in warm and temperate regions. Leaves opposite.
Large erect or decumbent shrubs; fruit 3-5-lobed; aril red.
Low spreading shrubs; fruit oblong; aril whitish.
Leaves alternate; woody vine.
1. EUËNYMUS [Tourn.] L. Sp. Pl. 197. 1753.
Shrubs, with opposite petioled entire or serrate leaves, and perfect cymose axillary greenish or purple flowers. Calyx 4-5-cleft, the lobes spreading or recurved. Petals 4 or 5, inserted beneath the 4-5-lobed disk. Stamens 4 or 5, inserted on the disk. Ovary 3-5-celled; style short or none; stigma 3-5-lobed. Capsule 3-5-celled, 3-5-lobed, angular, rounded or winged, the cavities 1-2-seeded, loculicidally dehiscent. Seeds enclosed in the red aril. [Ancient name of the spindle-tree; also spelled Evonymus.]
About 65 species, of the north temperate zone. Besides the following, 2 others occur in California. Type species: Euonymus europaeus L.
rods tuberculate; low shrubs; flowers greenish pink; leaves subsessile.
Erect or ascending; leaves ovate-lanceolate, acuminate.
Decumbent, rooting at the nodes; leaves obovate, obtuse.
Pods smooth; high shrubs; leaves distinctly petioled.
Flowers purple; cymes 6-15-flowered.
Flowers greenish yellow; cymes 3-7-flowered.
Euonymus americanus L. Sp Pl. 197. 1753.
A shrub, 2°-8° high, with 4-angled and ash-colored twigs, divaricately branching. Leaves ovate-lanceolate or oblong-lanceolate, thick, 1 1/2' - 3' long, 1/2'-1' wide, acuminate at the apex, acute or obtuse at the base, nearly sessile, crenulate, glabrous, or sparingly hairy on the veins beneath; peduncles 6"-12" long, very slender, 1-3-flowered; flowers greenish, 5"-6" broad; petals separated, the blade nearly orbicular, erose or undulate, the claw short; capsule slightly 3-5-lobed, not angular, depressed, tuberculate.