46 IV. ANONACE^. (Hook. f. & Thorns.) 



connective produced into an oblong dilated or truncate head. Ovaries 1 or 

 more, apocarpous, very rarely (Anona) syncarpous with distinct stigmas 

 style short or ; ovules 1 or more. Fruit of 1 or more sessile or stalked 

 1- or many-seeded usually indehiscent carpels. Seeds large ; testa erus- 

 taceous or coriaceous ; albumen dense, ruminate, often divided almost to the 

 axis into 4 series of horizontal plates ; embryo small or minute, cotyledons 

 divaricating.— DiBTElB. Tropics of the Old World chiefly : genera about 40 

 with 400 species, the determination of which is exceedingly difficult. 



Tejbe L ITvarieee, Petals 2-seriate, one or both series imbricate in 

 bud. Stamens many, close-packed; their anther-cells concealed by the 

 overlapping connectives. Ovaries indefinite. 



Flo-wers 1-sexual ; ovules many ; torus conical 1. STELEcSocABrns. 



Flowers 2-sexnal ; ovules many, rarely few ; torus almost flat 2. Utaela. 

 Flowers 1-2-sexual ; ovule Bolitary 3. ElipEla, 



Trebb II. TTnoneee. Petals valvate or open in bud, spreading in flower, 

 flat or concave at the base only, inner subsimilar or 0. Stamens many, 

 close-packed, their anther-ceUs concealed by the overlapping connectives. 



Ovaries indefinite. 



J" ■ , 



* Petals conniving at the concave base and covering the stamens and ovaries. 



Ovaries 1-3, many-ovuled ; peduncles not hooked .... 4. CTathocaltx. 



Ovaries many, 2-ovnled; peduncles hooked 5. Aktabotbys. 



Ovaries many ; ovules 4 or more ; peduncles straight ... 6. Deepanakthcb. 



*# 



Petals flat ; spreading from the base. 



Kipe carpels indehiscent. 



Ovules many, 2 seriate ; petals lanceolate 7. CananSA. 



' Ovules many, 2 seriate ; petals broad-ovate 8. GyathostEmma. 



Ovules 2-6, l-seriate on the ventral suture 9. Unona. 



Ovules 1-2, basal or subbasal . 10. Polyai.thia. 



Eipe carpels follicular '. 11. Ahaxaqobea. 



*** Inner petals valvate, tip incurved. 



12. PopowiA. 



Tbibe III. niitrephoreae. Petals valvate in bud, outer spreading; 

 inner dissimilar, concave, connivent, arching over the stamens and pistiL- 

 Stamens many, close-packed, anther-cells concealed by the overlapping con- 

 nectives. Ovaries indefinite. 



* Inner petals not clawed. 



Inner petals smaller than the outer 13. Oxymitea 



Inner petals much larger than the outer .14.' Ph^anthus 



** Inner petals clawed, usually smaller than the outer. 



Ovules 1-2, near the base of the ovary 16. Goniothalamot. 



Ovules many Ig Miteephoea. 



^ Teibe ly. Xylopieae. Petals valvate in bud, thick and rigid, connivent, 

 inner similar but smaller rarely 0. Stamms many, close-packed, anther- 

 cells concealed by the produced connectives. Ovaries indefinite. 



Ovules solitary ; fruit fleshy, of many connate carpels . . 16*Amona 

 Ovules 2- 00 ; outer petals broad; tocus convex . . . . ' I7' MELODokuM 

 Ovules 2-0) ; outer petals narrow; torus flat or concave . 18 Xylopia ' 



