Sautalacece.'] santalace^. 299 



mthout stipules. Flowers usually small and green, in terminal or lateral 

 heads, cymes, or spikes. 



A considerable Order, widely spread over the temperate regions of the globe, with a few 

 tropical' species. 



1. HENSLOWIA, Blume. 



FloAvers unisexual. Periantli-lobes 5 or rarely 6, tnangular. Stamens in- 

 serted near their base. Style short, stigma 3- to 5-lobed. Fruit a (h'upe. 

 Albumen deeply lobed. — Shiiibs usually parasitical, with the habit of Vlacum. 

 Leaves alternate, 3 to 7-nerved. Flowers small, axillaiy. 



A small tropical Asiatic genus. 



1. H. frutescens. Champ, m Keio Jonru. Bot. v. 194. An erect or trail- 

 ing glabrous shrub, apparently teiTestrial, but probal:)ly a parasite on under- 

 ground stems or roots. Leaves obovate, obtuse, 1| to 2 in. long, narrowed into 

 a short petiole. Peduncles axillary, clustered, 1 to 2 lines long. Male flowers 

 globular, not 1 line long, pedicellate, in little umbels or cymes. Female 

 flowers on a separate plant, solitary on each pedicel, and ovoid. Drupe ovoid, 

 about \ in. long, crowned by the perianth-segments. Endocaip thin, but hard, 

 with numerous projecting plates penetrating between the lobes of the seed. 

 Albumen with numerous obovoid or oblong supei-posed lobes, radiating from 

 a narrow continuous axis in the centre of which lies the linear embryo. 



Common on the hills, Champion; in the Happy Valley woods, WUford ; also If'rir/ht. The 

 H. heterantha. Hook, til., from northern India, which I liad thonght might be the sjime 

 species, proves distinct in many points. It is easily known by the smtdl tiowers, sessile, in 

 little heads at the top of the peduncles. 



Order XCIV. EUPHORBIACE^. 



Flowers always unisexual, either without a perianth in one or both sexes, 

 or more frequently with a simple calyx-like perianth, or sometimes also ^\ ith 

 4 or 5 petals alternating with the calyx-lobes. Stamens various. Ovary 

 consisting of 3 or sometimes 2 or more than 3 united 1 -celled or rarely 2- 

 celled carpels, each with 1 or 2 pendulous ovules. Styles as many as carpels, 

 free or more or less united, ei.tire or divided, the stigmatic surface usuidly 

 lining their inner face. Fruit either capsular, separating into as many elasti- 

 cally 2-valved cocci as carpels, leaving a persistent axis, or succulent and in- 

 dehiscent, the endocarp consisting of as many indehisccnt nuts or cocci as 

 cai-pels. Seed laterally attached at or above the middle, with or without an 

 arillus. Embryo straight, with flat cotyledons and a superior radicle, in a 

 fleshy albumen, or very rarely the cotyledons fleshy, and little or no albumen. 

 — Trees, shrubs, or herbs, often abounding in acrid milky juice. Leaves alter- 

 nate or opposite, rarely divided or compound, usually with stipules. In- 

 florescence veiy varied. Flowers usually small. 



A very large Order, most abundant within the tropics both in the New and the Ohl \V()rld, 

 gradually diminishing in numbers in more temperate regions, and very few ascending into 

 alpine or cold climates. 



Tribe 1 . Euphorbiese. — Involucre cali/x-like, includhiy several male Jioirers (s'nigle 

 stamens), and 1 central female one (a single pedicellate pistil), icit/ioiit any perianth, 

 forming a flov)erh.ead resembling a single fiovoer 1. Euphorbia. 



