50 PENTANDR1A. 



F. Fruit thin and almost flat, compressed transversely, without 

 dorsal wings. 



106. HERACLEUM. Seeds inversely heart-shaped, with a notch 

 at the summit, very nearly flat, with 3 slender dorsal ribs, 

 2 distant marginal ones, and 4 intermediate coloured de- 

 pressed abrupt lines from the top ; border narrow, slight- 

 ly tumid, smooth, even and entire ; calyx of 5 small acute 

 evanescent teeth ; petals inversely heart-shaped, radiant ; 

 fl. recept. wavy, crenate, obtuse ; flowers separated. 



III. TRIGYNIA. 



* Flower superior. 

 107- VIBURNUM. Corolla 5-cleft; lerry with 1 seed. 



108. SAMBUCUS. Corolla 5-cleft ; berry with 3 seeds. 



IV. TETRAGYNIA. 



109. PARNASSIA. Nectaries fringed with bristles bearing globes; 



capsule of 4 valves. 



V. PENTAGYNIA. 



111. LIKUM. Petals 5 ; capsule of 10 cells. 



110. STATICE. Petals 5; seed 1, clothed with the base of the 



funnel-shaped calyx. 



VI. HEXAGYNIA. 



112. DROSERA. Petals 5; capsule of 3 valves with many seeds. 



