276 NATURAL HISTORY OF PLANTS. 



quetrous, more rarely flattened. Stamens oc (of the Uvariecp) ; con- 

 nective tnincately dilated or tapering above anther-cells. Carpels oo, 

 or 1-6 ; styles exserted ; ovules oo, or subdefinite. Berries of variable 

 form, continuous, or sometimes contracted between the seeds, often 

 opening on pressure, oo- or more rarely 1 -seeded. — Trees or shrubs ; 

 leaves often distichous ; flowers axillary solitary or cymose, usually 

 shortly pedicellate {/Isia, J frier/, Ocnnnia, tropical America). See 

 p. 216. 



15. Anona L. — Flowers usually hermaphrodite; receptacle more 

 or less convex. Sepals 3, free or connate, valvate. Petals 3 or 6, 2- 

 seriate ; the outer sessile broad and concave at the base or altogether 

 connivent or spreading ; the inner equal to these or smaller, more 

 rarely 0, valvate or imbricated. Stamens (x; connective dilated 

 truncate or ovate, more rarely tapering above anther-cells. Carpels 

 o) on a hemispherical or flattened torus ; ovules 1, 2, subbasilar, 

 styles of variable form often cohering at the apex. Berries usually 

 truncate, more rarely rostrate, cohering into a multilocular fruit, 

 more rarely separating. — Trees or shrubs ; flowers solitary or in 

 small cymes, terminal or leaf-opposed {America, Asia, tropical and 

 subtropical Africa). See p. 220. 



^ IV. EOLLINIEiE. 



16. Rollinia A. S. H.— Flowers of y/w;//7 ; petals usually connate 

 at base into a short cylindrical or globose tube ; apex short valvate 

 covering the sexual organs, finally spreading ; on outer petals a thick 

 coriaceous spur-shaped laterally compressed dorsal process, apex 

 obtuse; the inner much smaller or 0, exappendiculate. Berries 

 sessile distinct or more usually coherent into a single fruit. — Trees 

 or shrubs; leaves membranous or coriaceous; flowers solitary or 

 cymose, lateral or leaf-opposed, rarely terminal {warm parts of 

 America). Sec ]). 2:28. 



17. Artabotrys R. Bii.— Sepals 3, free, or more or less coherent 

 at base, valvate. Petals 6, subequal 2-seriate valvate orbicular 

 concave surrounding sexual organs, each with a cylindrical or 

 flattened erect dorsal process. Stamens oo, connective truncately 

 dilated above anther-cells. Carpels op, on the convex or horizontal 



