MONOECIA POLYANDRIA. Myriophyllum. 279 



filaments, two of wliicli bear each of them two anthers, the third 



mostly one. Style divided into three branches. Berries red, of 



one cell, full of fetid juice. Leaf-lobes obscurely triangular. 



Root purgative, acrid : one dr. in wine a dose. Cataplasm of 



the root a powerful discutient. One pound of the fresh root in 



decoction, a purgative for horned cattle. The roots have been 



formed into the human shape to represent mandrakes. In summer, 



the root less juicy, and weaicer in its power. Ger. reports to have 



seen a root of this plant of half a hundred w^eight. 



The true B. alba of Linn, found on the continent, has black 

 fruit, being called alba, from its white root, in contradistinction 

 to Tamus, the black -rooted Bryony. Sin. 



31 ON OE CIA POLYANDRIA. 



CERATOPHYLLUM. Hornwort. 



C. demersiim. Common II. Fruit armed with three 

 spines. Ses^meiits of the calyx notched at tlie ex- 

 tremity. E^ C. 9 17. 



Ditches, fish poud^s. 



Per. July. 



Plant much branched, floating under water. FL stalkless, 

 whorled, each in the bosom of a leaf. Ls, whorled, twice- 

 foi'ked, saw toothed, leaflets bristle-shaped : lower ones linear : 

 leaves closer upwards, crowded close towards the end. 



MYRIOPHYLLUM. Water-Milfoil'. 



M. spicdtum. Spiked Water-M. Flowers in whorled, 

 interrupted, leafless spikes. E. B. 83. 



Ditches, pools. 



Per. July. 



Conspicuous by its numerous red flower-spikes, erect, above the 

 surface of the water, to prevent injury to the pollen. Stems 

 slender, much branched upwards. Ls. in fours, spreading, very 

 delicately comb -like, sunk in the water. Cal. acute, fringed. 

 Pet. blunt, concave, entire. fVhorls, lower ones of pis|i]?15ear- 

 ing flowers more distant. 



M. verticiUatum. Wliorled Water-M. Flowers all 

 axillary, from the whorled leaves. E. B. 218, 



Ponds, ditches; less common than Myr. spicatuw.. Sm. By the 

 bridge on the Botley road, near the lane going to Medley. Sl>. 



Per. July. 



Ls. in fives, lower ones comb-hke ; upper, comb-like-wing-cleft, 



> From its numerously divided leaves. 31ille, a thousand. 



