PHYTOLACCACEJE. 



33 



IV. EIVINA SEEIES. 



Rivina} (figs. 45-50) has regular hermaphrodite flowers. On 

 the convex receptacle is inserted a calyx with four sepals more or 

 less petaloid, of which one is anterior, one posterior, and two lateral; 

 they are imbricated in the bud in a variable manner. 2 More 

 internally the androceum is found. In certain species, such as 



Rivina hiimilis. 



Fig. 46. 



Flower (*). 



Fig. 45. 

 Floriferous and fructiferous branch. 



Fig. 48. 

 Longitudinal section of flower (i). 



B. humilis, Icevis, orientalis, &c., 3 it is formed only of four stamens 

 alternating with the sepals. In other species eight may be 

 counted, as in B. octcmdra, and even from ten to twelve, as in 



1 Plum., Gen., 47, t. 39, 3. — G^ktn., Fruct. 

 i. 375, t. 77, fig. 5.— Lamk., Diet., vi. 213 ; III., 

 t. 81. — Endl., Gen., n. 5257. — Payee, Or- 

 ganog., 301, t. 62. — Moq., Prodr., xiii. sect. ii. 

 10.— Solanoides T., in Act. Par. (1706), 87, 

 ic. 7. — Eivinia L., Gen., n. 162. — J., Gen., 84. 

 — Piercea Mill., Diet., vi. 310. — Rafin., Fl. 



VOL. IV. 



Tell., n. m\.—Villamilla R. et Pat., mss. (ex 



Moq.) 



2 Sometimes the two lateral are hidden, and 

 sometimes the anterior covers the lateral, which 

 envelops the posterior. 



3 Sect. Piercea (Moq., Prodr., 11). 



D 



