10 IV. ANONAGEiB [Baccopetalum 



adnate on the outside of the bi^oad connective. Ovaries 1-celled, as a rule 

 hairy and numerous, with the stamens on a convex or conicalj rarely flat or 

 concave torus. Truit usually consisting of numerous 1- or many-seeded carpels, 

 dry or succulent ^ on stalks, often long, which lengthen as the fruit ripens, 

 rarely dehiscent or united in one fleshy fruit. Seeds large, embryo small, 

 albumen ruminate, often separable into 2 halves marked by a longitudinal 

 furrow on the testa. 



Memarhahle anatomical characters : — Spheiical or lenticular cellb containing resin in 

 the parencliyma of leaves, often visible as pellucid dots. On a transverse bection the 

 timber of all species shows numerous fine transverse bars, at ligbt angles to the 

 medullary rays, consisting of wood parencliyma Hairs, wlien present, 1-celled or f e%\ - 

 celled, stellate in some genera. 



A. Ripe carpelfe indehiscent, distinct, mobtly btalked. 



I. — Tlie 3 outer petals small, similar to sepals. 



Ovules 6 ormore, inner petals always saccate at babe i. Sa( < ( jfii- i alum 

 Ovules 1-2, inner petals mostly tliin, flat. 

 Connective acute, stamens few or numerous . 2. Mii \\^\, 

 Connective broad, obtuse, stamens always nu- 

 merous 8. PliJiANlXIUS. 



II. — Petals uniform in shape and texture, fi globose or camxjanulate. 

 Petals imbricate in bud, ovules 6-12 . . 4. Saglk/ea. 



Petals valvate in bud, ovules 1-2 . . 5. Popowia. 



III. — Petals uniform, erect or spreading, the inner wanting in 2 «^j)ecies ot Unona. 

 Bipe carpels numerous. 

 Petals valvate in bud. 

 Ovules 1-2, i^ipe carpels 1-seeded . . .6. Polialihia. 



Ovules 2-8, 1-seriate, ripe carpels constricted 



between seeds 7. Unona. 



Ovules many 2-seriate, connective lanceolate . CinangtIdm (p. 16). 

 Petals imbricate in bud, ovules many, 2-seriate, 



connective obtuse 8. Uyakia. 



ly. — Petals uniform, erect or spreading, ripe carpels 1-6, 



few seeded ........ 9. Alphonsea. 



V. — All petals, or the inner only, connivent, closing over stamens and ovaries. 



1 Inner petals dissimilar, generally smaller, conniving over stamens and 

 ovaries, the blades cohering by their edges. 

 «. Inner petals narrowed into a linear claw. 

 Stamens 6-12, ovoid, anther cells contiguous . 10. Ohophea 

 Stamens oo , cuneate, connective broad, truncate or 



triangular 11 MiiKirnoRA. 



h. Inner petals not naiTowed into a linear claw. 



Style oblong or elavate Owmiira (p. 19). 



Style cylindrical, generally bifid . . .12. CIoniothalamus. 



2. Petals nearly equal, similar in shape (the inner bometimes snialler), 



all or the inner only with a concave base. 

 Ovaries many, petals thick, fleshy, connivent, the 



inner smaller 18. Melodobum. 



Ovaries 1 or more, petals narrow linear, fiom a 



concave base Xilopia (p. 20). 



Ovaries 2 or more, ovules 2, petals flat fiom a con- 

 cave base, fl. on woody, hooked peduncles . . 14. AiiaABOTiiyf.. 

 Ovary 1, ovules numerous, calyx cup-sha]3ed, 



truncate, or deeply 8-cleft . , . CyathocaltiX (p. 21). 



B. Bipe carpels dehiscent, distinct Anaxaciore^ (p. 21). 



0. Carpels united into a large fleshy fruit . . . .15. Ano^a. 



1. SACCOPETALUM, Bennett; M. Brit. Ind. i 88. 



Deciduous trees, fi. bisexual. Inner petals saccate at base, much larger 

 than sepals and the three outer petals. Stamens indefinite; connective pro- 

 longed into a conspicuous appendage. Ovaries indefinite, ovules 6 or more. 

 Species 5, 1 Australian, the others oi Eastern Asia. 



