600 EL^AGNACE^S umbellularia 



SHEPHERDIA 



Order LXXIX LAURACE^ Lindl, Nat. Syst. ed. 2, 200. 



Aromatic trees or shrubs with alternate, very rarely opposite, 

 mostly thick, petioled leaves without stipules and small flowers 

 in panicles, racemes or umbels. Calyx 4- 6 parted, the seg- 

 ments imbricated in 2 series in the bud. Stamens inserted in 

 3 or 4 series of 3, on the calyx, distinct, some of them often im- 

 perfect or reduced to staminoidea: anthers 2-celled or 4-celled 

 opening by valves. Ovary superior, free from the calyx, 1-cell- 

 ed with a solitary anatropous pendulous ovule. Style filiform 

 or short, rarely almost wanting: stigma discoid or capitate. 

 Fruit a drupe or berry. Embryo filling the seed, with large 

 plano-convex cotyledons and short included radicle. 



1 UMBELLULARIA Nutt. Sylv. i, 87. 



Shrubs or trees with alternate thick evergreen leaves and small 

 perfect flowers in axillary umbels which are included before ex- 

 pansion in involucres consisting of 4 broad caducous bracts. 

 Calyx deciduous, 6-parted. Stamens 9, inserted on the throat in 

 3 rows, the 3 inner ones with a fleshy 2-lobed stipitate gland on 

 each side at base, alternating with 3 ligulate staminoidea: anthers 

 4-celled, 4-valved, the outer introrse, the inner extrorse. Stigma 

 dilated, somewhat lobed. Drupe subglobose, subtended by the 

 thickened base of the calyx. 



U. Californica Nutt. Sylv i, 87. A handsome shrub or tree 10-70 feet 

 high or more, young branches, petioles and inflorescence somewhat puberu- 

 lent: leaves green, and shining, lanceolate-oblong, acute at each end or 

 sometimes rounded at base, 2-4 inches long, short-petioled, very aromatic : 

 peduncles in an apparently terminal panicle, or solitary in the upper axils, 

 6-12 lines long, 6-10-flowered : involucral bracts ovate, imbricated : pedicels 

 1-5 lines long, usually bracteate at base: sepals yellowish-green 1)^-3 lines 

 long, oblong to ovate : stamens included : drupes on short stout peduncles, 

 ovate-elliptical or globope, nearly an inch long. Along streams, southwes- 

 tern Oregon to California. 



Order LXXX EL^AGNACEJE Lindl. 1. c. 194. 



Shrubs or trees, mostly silvery-scaly or stellate-pubescent, 

 with entire alternate or opposite leaves and perfect polygamous 

 or dioecious flowers clustered in the axils or at the nodes of 

 branchlets of the previous season, rarely solitary. Lower part 

 of the calyx of pistillate flowers tubular or urn -shaped, enclos- 

 ing the ovary and persistent, the upper part 4-lobed or 4-cleft. 

 deciduous : calyx of the staminate flowers 4-parted or 2-parted. 

 Stamens 4 or 8: those of perfect flowers borne on the throat of 

 the calyx: anthers 2-celled, the cells longitudinally dehiscent. 

 Ovary 1-celled, with a solitary anatropous erect ovule. Fruit 

 drupe-like, the base of the calyx becoming thickened and en- 

 closing the achene or nut. Embryo straight, with little or no 

 albumen. 



