KOSACEJE. 215 



seated on a fleshy receptacle Fragaria. 5 



Calyx bracteolate. Stamens many, styles not elongating, ripe carpels 



seated on an elevated dry receptacle (3*) 

 (3*) Stamens and carpels many Potentilla. 6 



Stamens and carpels 5 or rarely 10 Sibbaldia. 7 



(4) a) Flowers regular, calyx-tube often urceolate, stamens 1 or more. 

 Carpels 1-3, styles terminal ; ovule 1. Achenes sunk in the calyx-tube. 

 Herb. (Poteriese) Agiimonia. 3 



<9) Flowers regular. Calyx-tube urceolate. Petals 5. Stamens very numer- 

 ous. Carpels many, free; ovule 1, pendulous. Achenes included in 

 the fleshy calyx-tube. Shrubs, leaves compound (Rose8e).7?os. 9 



/) Flowers regular. Calyx-tube becoming fleshy after flowering and 

 enclosing the carpels. Stamens numerous. Cvules 2 or more, 

 ascending. Fruit a pome, berry or a drupe, with 2-5 bony or 

 coriaceous 1-2-seeded stones. Shrubs or trees. (5) 



(5) Carpels free on the ventral side Cotoniaster. 11 



Carpels more or less entirely connate or single. (6) 



(6) Carpels entirely covered by the receptacle ; the cells, therefore, inside 



of the fruit. (7) 



Carpels upwards free from receptacles ; the cells, therefore, reaching 

 the hole of the fruit. (8) 



(7) Receptacles (axis) turbinate or urceolate Pynis. 10 



Receptacles (axis) obconical or funnel-shaped Rhaphiolepis. 14 



(8) Endocarp very thin, membrauaceous Eriobotnja. 13 



Eiidoearp coriaceous Photinia. 12 



1. Prunus LINN. 



Dicliotomous Key to the Formosan Species. 



(1) Flowers in a long raceme, leaves punctate acuminately caudate 



Primus pundata. 



Flowers axillary, clustered or very shortly racemose, or solitary, leaves 

 not punctate (2) 



