54^ BOTAirr. 



Tribe Todilnliece, witli aciinomorphic, mostly diclinous flowers, 

 coriaceous oj' baccate fruits, and seeds witli endosperm. 



Ptelea trifoliala, the Hop Tree, of the Eastern United States, Skim- 

 mia Ja/poniea, a small Japanese shrub, and two species of Plielloden- 

 dron, from Manchuria, are planted in gardens. 



Tribe Xanfhoxylece, with actinomorphic, mostly diclinous 

 flowers, usually capsular fruits, and seeds mostly with endosperm. 



Xanfhoxylum Americanum, the Common Prickly Ash, of the 

 Northern United Slates, and X. Clava-Herculis, the Southern Prickly 

 Ash, of the Southern States, are ornamental shrubs, and are often 

 planted. 



Tribe Soroniece. — Australian shrubs. 



Tribe Diosmece, with actinomorphic, monoclinous floTvers, cap- 

 sular fruits, and seeds without endosperm. 

 Species of Dioama and Barosma, pretty African shrubs, are to be found 



in conservatories. From their leaves the drug 



Buchu is obtained. 



Tribe Riltew, with generally actinomorphic, 

 monoclinous flowers, capsular fruits, and seeds 

 with endosperm. (Fig. 506.) 



Ruta graveolens, the Common Rue of the gar- 

 dens, is a native of Southern Europe and West- 

 ern Asia. 



„. _„„ _. . Dictamnus Fraxinella, Fraxinella, or the Gas 



Fie. 506. — Diagram of „, ^ . , ' ' , ,- 



the flower of Dictamnus riant, is a heavy-scented ornamental plant, 



S'"l^Tameu;^f Kori- "**^°^^ glandular foliafre secretes a volatile oil, 

 gin) slightly shaded.— Af- which is said sometimes tn flash into flame 

 ter Sachs. y}\ien a light is brought near to it. (Figs. 116-7.) 



Tribe Cuspariece, with zygomorphic, monoclinous flowers, cap- 

 sular fruits, and seeds without endosperm. 



Qalipea cusparia, a large tree of Guiana and Brazil, furnishes a hit- 

 ter medicinal bark, known as Angustura Bark. 



Order Geraniaceee. — The Geranium Family. Mostly herbs (rarely 

 shrubby or arborescent) ; leaves opposite or alternate, simple or com- 

 pound ; stamens more or less united below ; species, 750, mostly of 

 temperate and sub-tropical climates. 



Many are cultivated as ornaments. 



Impatiens Balsamina, the Garden Balsam, or Touch-Me-Not, some- 

 times erroneously called "Lady's Slipper," is a well-known annual 

 from India, which has been cultivated for more than two hundred and 

 fifty years. The name Touch-Me-Not (referring to its e'astically open- 

 ing fruits) is shared by two pretty native species. (Fig-. 507.) 



Oxalit contains several native species of Wood Sorrel, all of which 



