354 EL^EAGNACEJE. [Hippophae. 



ORDER LXV. ELSAGNA'CEiE. 



Shrubs or trees, with copious silvery or brown scales ; buds naked. 

 Leaves alternate or opposite, quite entire, exstipulate. Flowers small, 

 regular, 1-2-sexual, axillary, fascicled or cymose, white or yellow. 

 Perianth in the 2-sexual and female fl. tubular, 2-6-cleft, lobes imbricate 

 or valvate in bud ; in male fl. of 2 or 4 sepals free or connate below. Disk 

 0, or lining the calyx-tube. Stamens adnate to the calyx-tube, in the 

 male fl. twice as many as the lobes, in the 2-sexual as many as and op- 

 posite the lobes ; anthers fixed by the back or base. Ovary free, sessile, 

 enclosed in the thickened calyx-base, 1-celled ; style filiform, stigma 

 lateral ; ovule 1, basal, erect, anatropous. Fruit indehiscent, enclosed in 

 the calyx-tube. Seed ascending, testa thick or thin, albumen or scanty ; 

 embryo straight axile, cotyledons thick, radicle inferior. — Distrib. N. 

 temp, and trop. zones ; genera 3 ; species 16. — Affinities. With Thy- 

 mclazacece. — Properties unimportant. 



1. hippophae, L. Sea Buckthorn. 



A shining silvery willow-like dioecious shrub. Leaves alternate. Male 

 fl. in axillary clusters. Sepals 2. Stamens 4. Fem. fl. solitary. Calyx 

 tubular, minutely 2-lobed. Fruit a membranous utricle enclosed in the 

 succulent calyx-tube. Seed oblong, grooved on one side, testa crustaceous 

 shining, albumen a thin fleshy layer; embryo amygdaloid. — Distrib. 

 Europe, N. and Central Asia, Himalaya. — Etym. doubtful. 



H. rhamnoi'des, L. ; leaves obovate at length lanceolate. 

 Sandy sea-shores, York to Kent and Sussex, not common ; naturalized in 

 Scotland and Ireland. — Shrub 1-8 ft. ; branches slender and subpendulous, 

 or short and spinescent. Leaves £-2 in., lengthening after flowering to 3 in., 

 dull green above, silvery beneath. Flowers on the old wood ; male minute ; 

 sepals broadly oblong ; filaments short ; anthers yellow. Fruit % in. diam., 

 globose or oblong, orange-yellow. 



Order LXVI. lorantha'CE^b. 



Evergreen parasitic sb rubs. Stem often jointed. Leaves usually oppo- 

 site, coriaceous, exstipulate. Flowers 1-2-sexual. Sepals thick, 4, 6, or 

 8, superior, free or united into a tubular calyx, lobes valvate in bud. 

 Stamens, one adnate to each calyx-lobe ; anther 1-2 celled opening by slits, 

 or many-celled and opening by many pores. Disk annular, epigynous or 0. 

 Ovary inferior, 1-celled ; style simple or 0, stigma simple ; ovule 1, reduced 

 to a nucleus or to an embryo sac, adnate to the substance of the ovary. 

 Berry 1-seeded. Seed erect^ testa thin, albumen copious fleshy ; embryos 

 1 or more, cotyledons thin or plano-convex, radicle superior. — Distrib. 

 Trop., temp. ; genera 13 ; species 500. — Affinities. Very near Santa- 

 lacoee. — Properties unimportant. 



