286 ARAL1ACKE. 



may be distinguished from all other British umbellifer- 

 ous plants by bearing its stamens and pistils in separate 

 flowers and on different plants. 



Seseli Libanotis (Mountain Meadow-Saxifrage) is of 

 rare occurrence, in Cambridgeshire and Sussex. It may 

 be distinguished by its hemispherical umbels and hairy 

 fruit, crowned by the reflexed styles. 



Peucedanum officindle (Sea Hog's Fennel), a rare 

 plant, remarkable for its large umbels of yellow flowers, 

 occurs in salt marshes on the eastern coast of England. 

 P. palustre (Marsh Hog's Fennel) is also a rare species, 

 growing in marshes in Yorkshire, Lancashire, &c. The 

 stem grows 4 5 feet high, and abounds in a milky 

 juice, which dries to a brown resin. 



Coriandrum sativum (Common Coriander) is occa- 

 sionally found in the neighbourhood of towns, but can- 

 not be deemed a native plant. It is well marked by its 

 globose, pleasantly aromatic fruit. 



ORD. XXXIX. AEALIACE^. THE IVY TRIBE. 



Calyx attached to the ovary, 4 5-cleft ; petals 4, 5, 

 or 10, occasionally wanting ; stamens equalling the petals 

 in number, or twice as many, inserted on the ovary ; 

 ovary with more than 2 cells ; styles as many as the 

 cells; fruit fleshy or dry, of several 1 -seeded cells. 

 Trees, shrubs, or herbaceous plants, not confined to any 

 particular climate, closely resembling the Umbelliferous 

 Tribe in the structure of their flowers, but not partaking 

 their dangerous properties. Only two species are natives 

 of Britain ; but one of these, Ivy, is so universally dif- 

 fused as to be familiar to every one ; the other, Mos- 

 chatell, is a humble plant, with solitary heads of green 

 flowers, and delicate leaves strongly scented with musk. 

 Ginseng, the favourite medicine of the Chinese, is the 

 root of some species of Panax, a plant belonging to this 

 tribe. Some species of Ivy furnish wood scented like 

 Lavender and Rosemary, and others an aromatic gum. 



