HAMAMELACE.E, HALORAGE^. 79 



2. S. Tele'phium, L. (LIVE-FOR-EVER.) Stems tall and 

 stout. Leaves oval, toothed. Flowers in compound cymes, 

 petals purple. Sepals, petals, and carpels 5 each. Stamen. 

 10. (Int. from Eu.) 



3. S. Rhodi'ola, DC. (Boss -ROOT.) Stems 5-10 inches 

 high. Flowers dioecious, greenish - yellow or purplish. 

 Stamens mostly 8, other parts in fours.- Rocky shores, Atl. 

 Prov. 



ORDER XXXV. HAMAMELA'CEJS. (WITCH-HAZEL F.) 



Tall shrubs, with alternate simple leaves, and deciduous 

 stipules. Flowers in clusters or heads, often monoecious. 

 Calyx 4-parted, adherent to the base of the ovary, the latter 

 of 2 united carpels. Fruit a 2-beaked, 2-celled, woody pod, 

 opening at the top. Petals 4, strap-shaped, inserted on the 

 calyx. Stamens 8, 4 of them anther-bearing, the remainder 

 reduced to scales. The only genus with us is 



ii AH. IMF; MS L. WITCH-HAZEL. 



H. Virginia'na, L. Leaves obovate or oval, crenate or 

 wavy-toothed, pubescent. Flowers yellow, appearing late 

 in the autumn. Damp woods, chiefly west of Toronto. 



ORDER XXXVI. HALORA'GE.fl2. (WATER-MILFOIL F.) 



Aquatic or marsh plants, with small inconspicuous flowers, 

 sessile in the axils of the leaves or bracts. Calyx-tube ad- 

 herent to the ovary (but calyx and corolla wanting in Calli- 

 triche), the latter 2-4-celled (in Hippuris of a single carpel). 

 Limb of the calyx minute or none. Petals small or none. 

 Stamens 1-8. Fruit indehiscent, a single seed in each cell. 



Synopsis of the Genera. 



1. Myriopbyl'lam. Flowers monoecious or polygamous, with the parts 



in fours. Stamens 4 or 'G. Immersed leaves pinnately dissected 

 into capillary divisions. 



2. Hippu'ri.s. Flowers perfect. Stamen, style, and carpel only one- 



Leaves entire^ linear, acute ; in whorls of 8 or 10. 



