KOSACEJL. (ROSE FAMILY.) Ill 



Att I. SPIRJIiiEjE. Pistils mostly 5, forming follicles in f m-t : styles terminal. 



2. SPIRAEA. Calyx 5-cleft. Petals oboyate, equal, imbricated iu the bud. 



3. GILLENIA. Calyx elongated, 5-toothed. Petals slender, unequal, convolute in the bu2 



TRIBE II. DRYADEJE. Pistils numerous (rarely 1-2), forming seed-like achenia oi 

 little drupes in fruit. Calyx-tube dry in fruit ; the lobes commonly valvate in the bucL 



Subtribe 1. SANGUISORBEJE. Calyx-tube constricted at the throat. Petals often wanting. 

 Stamens 4 - 15. Pistils 1-4, dry in fruit, enclosed in the calyx. 



4. AGR1MONIA. Petals 5. Stamens 12 - 15. Pistils 2 : style terminal. 

 6. SANGUISORBA. Petals none. Stamens 4. Pistil 1 : style terminal. 

 6. ALCHEMILLA. Petals none. Stamens and pistils 1 - 4 : style lateral. 



Subtribe 2. CHAM^RHODEJS. Calyx open. Stamens & pistils 5 -10: styles lateial. Fruit dry. 

 . SIBBALDIA. Stamens 5, alternate with the minute petals. 



Subtribe 3. EUDRYADE.E. Calyx open. Stamens and pistils few many. Fruit of dry 



achenia, tipped with terminal styles. Seed erect. (Radicle inferior.) 

 8 DRY AS. Calyx8-9-parted. Petals 8 -9. Styles persistent, plumose. 

 9. GEUM. Calyx 5-cleft. Petals 5. Achenia numerous : styles persistent. 



10. WALDSTEINIA. Calyx 5-cleft. Achenia few : styles deciduous from the base. 



Subtribe 4 FRAGARIE.E. Calyx open and flattish, bracteolate. Stamens and pistil* numer- 

 ous : styles often lateral, deciduous Fruit of dry achenia. Seed suspended or ascend- 

 ing, inserted next the base of the style. (Radicle always superior.) 



11. POTENTILLA. Receptacle dry, flat, convex, or oblong. 



12. FRAGARIA. Receptacle conical, enlarged and succulent in fruit, edible. 



Subtribe 5. DALIBARDE^E. Calyx open, not bracteolate. Stamens and usually the pistils 

 numerous : styles terminal, deciduous. Achenia mostly fleshy, or becoming little drupe* 

 Seed suspended (oyules 2, collateral : radicle superior). 



13. DALIBARDA. Fruit of 5 - 10 almost dry achenia, in the bottom of the calyx. 



14 KUBUS. Fruit of numerous (rarely few) pulpy drupaceous achenia, aggregated on a flat- 

 tish or elongated receptacle. 



TRIBE III. ROSE.ZE. Pistils numerous, forming achenia, inserted on the hollow recep- 

 tacle which lines the urn-shaped and fleshy calyx-tube. Calyx-segments imbricated. 



15. ROSA. Leaves pinnate : stipules cohering with the petiole. 



SUBORDER III. POMEJE. THE PEAR FAMILY. 



Calyx-tube thick and fleshy in fruit (forming a pome), including and co- 

 hering with the 2-5 ovaries. Stipules free. 



16. CRAT&GUS. Carpels bony in fruit, 1-seeded. 



17. PYRUS. Carpels papery or cartilaginous in fruit, 2-seeded. 



18. AMELANCHIER. Carpels cartilaginous, each divided into 2 cells by a partition : cell* I- 



seeded. 



SUBORDER I. AMYODAL.E^E. THE ALMOND FAMILY 

 1. P RUN US, L. PLUM & CHERRY. 



Calyx 5-cleft. Petals 5, spreading. Stamens 15-30. Ovary with 2 pen- 

 dulous ovules. Drupe fleshy; the stone smooth and even. Small trees or 

 shrubs. Flowers commonly white. (The ancient classical name of the 

 Plurr ) 



