MACLOSKIE : RHAMNACEyG. 565 



(Brazil) ; N. Patagon., by Rio Negro. Fig. G-J in Eng. & Prantl, iii, 

 5, p. 422. The bitter cortex of its root is used as a febrifuge, "Brazilian 

 china." 



6. DISCARIA FOLIOSA (Miers sub Notopluena] Speg. 



Leafy shrub or small tree, the branches not spreading, some of them 

 spinescent, the spines erect, striate, pale to fuscous-red. Young branches 

 unarmed, erect, bearing leaves and flowers. Stipules opposite, reddish, 

 broad-trigonal, concave or 2-toothed, united around the stem. Leaves 

 opposite, elliptical to oblong, obtuse or mucronulate, crenulate-toothed, 

 green above, glaucous beneath, pinnately nerved. Flowers 3-fascicled 

 from each axil. Peduncle erect, at length curved. Ovary pilose. Style 

 glabrous, long. The spines are jointed in the middle, and there florife- 

 rous. In the young branches the stipules form in each axil a hollow cup 

 with 2 lobes. 



(Chili) ; N. Patagon., by Rio Negro. 



7- D. INTEGRIFOLIA Speg. 



Leaves entire, subspatulate, emarginate, shortly cuneate-petiolate, gla- 

 brous. Flowers axillary, ternate ; peduncles twice as long as the petioles. 

 Calyx 4-partite, subglobose, rose-purplish. 



S. Patagon., by Lago Argentine. 



8. D. LONGISPINA (Hook.) Miers. 



Glabrous shrubs, nearly leafless, with virgate-spinose branches ; spines 

 opposite, remote, very long, often arcuate, mostly naked, callous-pungent. 

 Young branches from beneath the spines ; with leaves and flowers in the 

 axils. Leaves opposite, small, long-elliptical, acute, entire, rarely with 

 toothed apex ; shining green, fleshy. Stipules red, ovate, 2-toothed, ciliate, 

 united, minute. Flowers often crowded in the axils. Calyx as long as 

 peduncle, urceolate, with 4 erect segments. Petals 4, acute both ways. 

 Stamens subequal to petals. Ovary glabrous, globose. Style short. 

 Fruit with 3 cocci, separating. 



Argentina to N. Patagon. 



" The thick roots serve as fuel ; and the flowers are sold in Buenos 

 Aires." (J. Ball.) 



