SAXIFRAGACEJB. 



381 



down the much-involute ventral angle, and containing one or two 

 seeds whose micropyle is dilated into a wing. The embryo, sur- 

 rounded by a layer of albumen, has its radicle superior. The five 

 known species of this genus are New Caledonian shrubs with the 

 habit of Codia ; but their leaves are verticillate. 



Callicoma serratifolia. 



}i} Iff 



Fig. 454. 

 Flower (f). 



Fig. 455. 

 Long. sect, of flower. 



Callicoma ' (figs. 453-455) has opposite leaves, and hermaphrodite 

 flowers, with a receptacle of variable depth. In C. serratifolia- which 

 was long the sole constituent of the genus, the receptacle is scarcely 

 concave ; so that the ovary is nearly free (fig. 454), as in Pancheria. 

 In C. Stidzeri? on the contrary, half the ovary is sunk in the ob- 

 conical cavity of the receptacle, nearly as in certain Codias. The 

 flowers of Callicoma are apetalous ; the cells of the ovary are com- 

 plete or incomplete, multiovulate. The genus comprises Australian 

 trees and shrubs. 4 



XV. BEUNIA SEEIES. 



Brunia* (figs. 456-45S) has regular hermaphrodite flowers. In 

 the hollow of the concave receptacle is lodged part of the ovary, and 



1 Andr., Bot. Repos., t. 566. — DC, Prodr., 

 iv. 7 (part.). — Spach, Suit, a Buff on, v. 6. — 

 Endl., Gen., n. 4648.— B. H., Gen., 649, n. 55. 

 — Calycomis R. Br., in Flind. Toy., 549 (nee 

 Don).— Endl., Gen., n. 4649. 



2 Andr., loc. cit. — Lodd., Bot. Cab., t. 1167. 

 — Bot. Mag., t. 18] 1. — C. ferruginea Don, in 

 Edinb, N. Phil. Journ., ix. 93 (vur. with brownish 

 down). 



3 F. Mijell., Fragm., v. 32; vi. 188, 252. 



4 Benth., Fl. Austral., ii. 440. 



5 Bttrm., Afric., t. 100. — L., Gen., n. 274 

 (pnrfc.). — Adans., Fam. des PL, ii. 284. — J., 

 Gen., 381, 452.— Gjertn., Fruct., i. 152, t. 30.— 

 Lamk., Diet., i. 474.— Ad. Br., in Ann. 8c. Nat., 

 ser. 1, viii. 372, t. 35, fig. 2.— Endl,, Gen., n. 

 4597. — H. Bn., in Adansonia, iii. 318 ; v. 295 ; 

 in Payer Fam. Nat., 346.— B. H., Gen., 671, n. 



