ANON AGE JR. 221 



free or cohering to a variable extent, valvate in aestivation. The 

 corolla consists of six petals, that may be narrow, acute, and thick, 

 as in most species of Xi/lopia ; a character found in the highest degree 

 in some American species, as A. Lichmamiicuia,^ qalndiieimH'; &c. In 

 others, such as A. Cherijiiolia, cherimolioide.s, refic/data, .squamom, &c., 

 the corolla, less elongated and acute in the bud, comes nearer that 



Auona muricata. 



Fig. 269. 

 Flower. 



Fig. 271. 

 Longitudinal section of fruit [\). 



of several species of Melodonnu. In others, again, the bud is ovoidal 

 and more or less trigonous, as in A. ^ericca, Plsonis, cornifolia, coriacca, 

 &LQ,., or globular, as in different forms of A. soie^alensis, or even de- 

 pressed and of greater breadth than height, as in A. tenuifolia {fcifji- 

 folicL)? In several species the inner petals become much shorter than 

 the outer ones, and are only represented by very short spoon-shaped 

 scales ; and in some others they finally disappear entirely.^ But despite 



' H. Bn., Aclansonia, viii. 266, n. 4. 



- H. B. K., Nov. Gen. et Spec, v. 47, ii. 12. 



•• Sec Adan.sonia, viii. 296, where the inter- 

 mediate forms observed in many other species of 

 this genus :ire reviewed more in detail. 



•• On these chnracters De Maetius {Fl. Bras., 

 Anunac, 3, 46) has founded a division of the 

 genus Anona into two sections : 1st, G-uanahani, 

 in which the flowers have six well-developed 

 petals; 2nd, Afla, where the inner petals are 



