71. EMPETRACEJE. 72. EUPHORBTACE^E. 289 



2. ASARUM Linn. Asarabacca. 



1. A. europceum (L.); 1. reniform obtuse. E. B. 1083. St. 2. 7- 

 St. short, with 2 leaves, between which there is a solitary 

 drooping dull green fl. Segments of the perianth ovate and in- 

 curved. Filaments extending beyond the anthers. Woods in 

 the north, rare. P. V. E. 



Order LXXI. EMPETRACE.E. 



Dioecious. Perianth of hypogynous scales imbricated in several 

 rows. Stam. equal in number to the inner row of scales and 

 alternate with them, free. Ovary free, on a fleshy disk, 2 9- 

 celled. Ovules solitary, ascending. Style 1. Stigma radiant. 

 Fr. fleshy with bony cells. Embryo in the axis of fleshy albumen. 

 Radicle inferior. 



1. EMPETRUM. Cal. 3-parted. Pet. 3. Stam. 3 in the 

 male fl. Style short ; stigma dilated, peltate, with 6 9 

 rays. Berry globose, 1 -celled. Seeds 6 9. G.F.G. Mo- 

 nochl. 42. 



1. EMPETRUM Linn. Crowberry. 



1. E. nigrum (L.) ; procumbent, 1. linear-oblong their margins 

 meeting in a white line beneath. E. B. 526. A small procum- 

 bent leafy heathlike shrub. Fl. axillary, small, purple. Stigma 

 with 9 rays. Berries black. Mountain heaths. Sh. V. 



Order LXXII. EUPHORBIACE^l. 



Fl. usually monoecious. Perianth lobed or 0. Male flowers 

 of 1 or more stamens. Anth. 2-celled. Fern. fl. of 1 superior 

 2 3-celled ovary. Styles 2 3. Stigma compound or simple. 

 Caps, opening with elasticity ; cells 2 3, with 1 or 2 suspended 

 seeds in each. Embryo in fleshy albumen. Radicle superior. 

 For fig. of genera see G. F. G. Monochl. 36. 40. 41. 



1. Buxus. Fl. monoecious. Male. Cal. 3-parted. Pet. 2. 

 Stam. 4. Fern. Cal. 4-parted. Pet. 3. Caps, with 3 horns, 

 3-celled, 6-seeded. 



2. EUPHORBIA. Fl. incomplete, collected into monoecious 

 heads consisting of 1 female and many male flowers. Invo- 

 lucre campanulate, with 5 divisions and 5 alternate glands. 

 Males consisting of a single stamen upon a pedicel, inter- 

 mixed with scales and surrounding the female. Fern, a single 

 pistil. Styles 3. Stigmas bifid. Caps. 3-celled, bursting 

 at the back. Seeds solitary, pendulous. 



