MACLOSKIE I PROTEACEyE. 333 



3. PARIETARIA Linn. 



Herbs, mostly diffuse, with 3-8-flowered, androgynous, axillary cymules 

 of 4, rarely 3-merous flowers. Leaves alternate, entire, 3-nerved, exstip- 

 ulate. Fertile flowers sometimes hermaphrodite, with a tubular or cam- 

 panulate, 4-lobed calyx, free from the involucral bracts. Stigma short or 

 linear, tufted. 



Species 8, chiefly in temperate regions of both hemispheres. 



P. DEBILIS G. Forster. 



Annual, with erect or diffuse stem, and ovate, or rhomboid, or sub- 

 rotund leaves. Cymes few-flowered. Bracts linear or lanceolate, scarcely 

 enlarged in fruit. 



(Subtropical) ; Chubut, in cultivated fields. 



Family 25. PROTEACE^E. 



Shrubs or trees, rarely perennial herbs; with exstipulate leaves, and 

 4-merous flowers with single symphyllous, hypogynous perianth; the 4 

 stamens inserted on and included in the perianth. Ovary i -celled, with 

 terminal style. Seeds mostly i-few, without endosperm. 



Species i ,000, most in Austral, and S. Africa ; few in the Orient and 

 S. Pacific Is. and S. Amer. 



("All the American species belong to the section having flowers in 

 pairs, enclosed by the bract." R. Brown, 1811.) 



KEY TO THE GENERA. 



A. Leaves simple. Perianth-tube cleft behind. Seeds usually more than 4. 



b. Shrub with terminal racemes of red flowers. Capsule long, leathery or almost woody. A 



ring-formed hypogynous disk. I. Embothriwn. 



62. Trees or shrubs with axillary or terminal racemes. Capsule leathery, broad and flat. 

 Hypogynous disk represented by 3 broad, truncated, glandular processes. 



2. Tricondylus (Lomalia). 

 Az. Trees with alternate, pinnate leaves, and axillary racemes of white flowers, having cylin- 



draceous perianth -tube, the segments separating from the base. Hypogynous disk a 

 fleshy, 2-lobed half-ring. Seeds 2, rarely 4, becoming coral-red "hazel-nuts." 



3. Guevina. 



i. EMBOTHRIUM Forst. 



Evergreen shrubs, with sparse, coriaceous, entire leaves, and dense, ter- 

 minal racemes of geminately pediceled red flowers, with none or a few 



