LI. BOsACEJi. (J. D. Hooker.) 307 



Okdbk LI. ROSACEX:. (By J. D. Hooker.) 



Herbs, shruljB or trees. Leaves stipulate, rarely opposite, simple or com- 

 pound. Flowers usually bisexual and regular (very irregular in Chnjsohalanefs). 

 Cdyx-tuhe free or adnate to the oyary, limb usually 5-lobed, often bracteolate, 

 imbricate or valvate. Petah 6, rarely 0, inserted under the margin of the disk, 

 deciduous, usually imbricate. Disk lining the calyx-tube or forming a ring at 

 its base. Stamem perigynous, indefinite (rarely 1, 6 or 10) in one or many 

 series, often connate and unilateral in Chrysdbalanem ; filaments subulate or fili- 

 form, usually incurved in bud ; anthers small, didymous. Ovary of one or more 

 free or connate carpels, with free or connate styles, which are basal, lateral or 

 subterminal ; stigmas simple, penicillate or eapitate; ovules 1 or piore in each 

 ■carpel. Fruit variable, of achenes, or berries or drupes, rarely capsular. Seeds 

 •erect or pendulous, testa membranous or coriaceous, albumen 0; cotyledons 

 large,. plano-convex; radicle short. — Distbib. About 1,000 species, found in all 

 climates and countries, but chiefly in the temperate. 



Chbtsobalamus Icaco, JJ/Mh. ; the Cocoa-plum of the West Indies is cultivated in 

 some parts of the Malabar Coast, but not frequently. 



A. Carpels free or adnate to the»side of the calyx-tube. 



Tbibb I. Chrysobalanese. Flmoers usually irregular. Carpel 1 ; 

 style basal ; ovules 2, ascending. Fruit a drupe. Radicle inferior. — Trees or 

 slu^ubs with simple quite entire leaves. 



■Calyx-tube elongate. Stamens many, unilateral. Ovary 2- 



loeellate 1. Paeinabhim. 



Calyx-tube short. Stamens 2. Ovary 1-ceUed ... 2. Paeastbmon. 



Tribb II. Pruneae. Flowers regular. Carpel 1, rarely 2; style sub- 

 terminal, rarely basal ; ovules 2, pendulous. Radicle superior. — Trees or shrubs 

 ■with simple usually serrated leaves. 



■Calyx S-lobed. Petals 5, .lajge, gla,br6us. Carpel solitary . 3. Pbuntjs. 

 ■Calyx 5-10-toothed. Petals 6-8, minute or 0. . Carpels 1 or 2. 



Drupe erect, fleshy, ■with a bony stone i. Maddjenia. 



Oalyx 5-10-toothed. Petals 5, minute or 0. Carpel!. Drupe 



erect, coriaceous 5. PxcffiUM. 



'Calyx 5-lobed. Petals 5. Carpel 1. Drupe inverted, style 



sub-basilar 6. Prinsepia. 



Tribe HI. Spiraeae. Flowers regular. Calyx ebracteolate. Stamens 

 10 or more. Carpels 1-8 ; styles ventral or basal ; O'Tules 2 or more, pendulous. 

 Radicle superior. — Shrubs, rarely herbs, with entire or seiTate simple or com- 

 pound leaves. 



7. SPIE.SA. 



Tkibb IV. Xtubeee. Flowers regular. Calyx ebracteolate. Stamens; 

 very numerous. Carpels many; styles sub-basal or ventral: ovules 2, collatera'; 

 pendulous. Fruit of many dry or fleshy carpels not included in the calyx-tube. 

 Jtadicle superior. — Usually shrubs,, with often compound leaves. ■ 



8. EuBcs. 



Teibb V. FotentilleaB. Flowers regular. Calyx usually bracteolate. 

 ■Stamens usually nvunerous, rarely few. Carpels 1 , or more ; style short or 

 much prolonged after flowering ; ovule solitary, ascending. Fruit of many 

 achenes, not included in the calyx-tube. Radicle superior, — Herbs or small 

 shrabs with varioufl leaves. 



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