'27,5 NATURAL HTSTORY OF PLANTS. 



qiietrous, more rarely flattened. Stamens oc (of the Uvariece) ; con- 

 nective truncately dilated or tapering above anther-cells. Carpels co, 

 or l-G ; styles exserted ; ovules oo, or subdefinite. Berries of variable 

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

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

 leaves often distichous ; flowers axillary solitary or cymose, usually 

 shortly pedicellate {Asia, Africa, Oceania, tropical America). See 

 p. •2\(S. 



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 oc; connective dilated 

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



oo 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, frojjical and 

 subtropical Africa). See p. 220. 



§ lY. EOLLINIE^. 



16. RoUinia A. S. H. — Flowersof^;/o«r/ ; 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, apexi 

 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). See p. 223. 



17. Artabotrys R. Br.— 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 OE 

 flattened erect dorsal process. Stamens oc, connective truncatelj^ 

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



