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Vor. IL] STAFF-TREE FAMILY. 395 
4. Euonymus Europaéus L. Spindle- 
tree. (Fig. 2368.) 
Euonymus Europaeus Y,. Sp. Pl. 197. 1753. 
A glabrous shrub, 3°-9° high, resembling the 
preceding species. Leaves oblong, to ovate- 
lanceolate, acuminate, crenulate; peduncles 
mostly less than 1’ long, stouter; cymes 3-7- 
flowered; flowers greenish yellow, about 5/” 
broad; petals 4 (rarely 5), oblong or obovate; 
capsule smooth, deeply 4-lobed. 
Escaped from cultivation into copses and along 
roadsides. Southern New York and New Jersey. 
June. Old English names Arrowbeam, Prick-tim- 
ber, Prickwood, Cat-tree, Pegwood, Pincushion 
Shrub, Skiver-wood, Witchwood. 
2. PACHYSTIMA Raf. Am. Month. Mag. 2: 176. 1818. 
Low branching glabrous shrubs, with corky branches, opposite coriaceous evergreen 
leaves, and small axillary solitary or clustered, perfect brownish flowers. Calyx-lobes 4, 
broad. Petals 4, spreading. Stamens 4, inserted beneath the disk; filaments longer than 
the anthers. Ovary immersed in the disk, 2-celled; ovules 2 in each cell, erect; style very 
short; stigma slightly 2-lobed. Capsule oblong, compressed, 2-celled, at length loculicidally 
dehiscent, 1-2-seeded. Seeds oblong with a white many-lobed aril at the base. 
Two species, natives of Nqrth America. P, 
Myrsinites occurs in the Rocky Mountains. 
1. Pachystima Canbyi A. Gray. 
Canby’s Mountain Lover. 
(Fig. 2369.) 
Pachystima Canbyi A, Gray, Proc. Amer. Acad. 
8: 623. 1873. 
A shrub 4/-12’ high, with decumbent 
rooting branches. Leaves oblong, or slightly 
obovate, 6’/-10’” long, 114//-2/’ wide, ob- 
tuse at each end, very short-petioled, pale 
green, serrate, the margins revolute; pe- 
duncles 1-3-flowered, 2-bracted below the 
middle; pedicels slender and 2-bracted 
near the base; calyx-lobes oval, about 
equalling the petals; capsule oblong, about 
4’’ long and 2’ in diameter, dehiscent at 
maturity. 
On dry exposed rocks, mountains of Virginia 
and West Virginia. April-May. 
3. CELASTRUS L. Sp. Pl. 196. 1753. 
Shrubs, mainly climbing, with alternate thin deciduous leaves, and terminal or axillary, 
racemose or paniculate, small dioecious or polygamous flowers. Calyx 5-lobed. Petals 5, 
inserted under the disk. Stamens in the sterile flowers 5, inserted at the sinuses of the 5- 
lobed disk. Ovary inserted on the disk, 2-4-lobed, 2-4-celled; style thick; stigma 2-4-lobed; 
ovules 2 in each cell, erect. Capsule 2-4-celled, loculicidally dehiscent into as many valves. 
Seeds 1-2 in each cell, enclosed in a scarlet aril; embryo straight; endosperm fleshy; coty- 
ledons flat, coriaceous. [Greek name of some evergreen tree. ] 
About 30 species, 1 in North America, numerous in eastern Asia, several in Australia and 
Madagascar. 
