MACLOSKIE: BERBERIDACE^E. 415 



6. HAMADRYAS TOMENTOSA DC. (H. magellanica tomentosa.] 

 Erect. Leaves oblong or subtrifid, webby-villous on upper surface. 



Stems covered by fibrous threads from old leaves. Calyx tomentose. 



Capsiiles oval, ending in a persistent style, striate. (Fig. 70, p. 414.) 

 Fuegia, Mts. above Ushuaia ; Staaten I ; rare. 



Family 40. BERBERIDACE^. Barberry Family. 



Shrubs or herbs with alternate or basal leaves, and regular flowers. 

 Sepals and petals two- to several-seriate. Stamens as many as, and oppo- 

 site to the petals, hypogynous ; anthers mostly opening by valves. Pistil 

 of i carpel ; fruit a berry or capsule. 



Species more than 100, most of them in the N. Temperate zone, the 

 Andes, and in temperate S. Amer. 



BERBERIS Linn. Barberry. 



Shrubs with simple or pinnate leaves, often spiny-toothed, or changed 

 into spines. Sepals 6-9, petaloid ; petals and stamens usually 6 each, the 

 anthers opening by upwardly opening valves. Ovary i -celled. Fruit a 

 berry. Species 100. 



KEY TO THE SPECIES (including some Chilian forms). 

 A. Flowers in corymbs or racemes. 



b. Stamens appendaged below the anthers. Spines palmately divided. 



c. Lower leaves spiny-toothed. congestiflora.~\ 



02. Leaves all entire. Racemes. rotundifolia. > (Chilian). 



CT,. Leaves entire. Umbels. umbellata. J 



b2. Stamens not appendaged. 



f. Branches (some or all) spineless. 



d. Leaves, some membranous, entire, others coriaceous, spiny-toothed. 



polymorpha (Chilian). 

 d2. Leaves coriaceous. 



e. Leaves lanceolate, dentate. pearcei. 



e2. Leaves obovate, basally attenuate. serrato-dentata.*\ 



c2. Branches with spines. 



d. Leaves, some entire, others spiny-toothed. polymorpha. 



d2. Leaves with bidentate margins. bidentata. 



d^. Leaves spiny- toothed. 

 e. Spines short, 5 mm. 



/. Rachis of raceme shorter than the leaves. . Uicifolia. 

 /2. Rachis longer than the leaves. darwinii. 



