26. ROSACE*. 99 



Tr. III. DRYABEM. Fruit not included in calyx-tub?, of 6 

 or more small dry nuts (in Mubus drupes) inserted on a 

 dry or succulent receptacle. Oalyx persistent, open, nearly 

 flat. 



* Attachment of the seed near to that of the style, radicle 

 superior. 



7. SiBBAiDiA. Cal. concave, 10-parted, in 2 series, 6 exte- 

 rior parts smaller. Pet. 5. Stam. 5. Style lateral. Fr. 

 of 5 — 10 small nuts placed on a dry receptacle. Seed 

 ascending. 



8. PoTENTiLLA. Cal. concave, 8 — 10-parted, in two series, 5 

 exterior parts smaller. Pet. 4 — 5. Stam, many. Style 

 lateral or nearly terminal. Fr. of many small nuts placed 

 upon ajlattish dry receptacle. Seed pendulous or ascending. 



9. CoMARUM. Cal., cor., stam., and pistils as in PotentHla. 

 Receptacle ultimately large, spongy, persistent. Style lateral 

 near tlie top of the nut. Seed pendulous. 



10. Fbagaria. Oal., cor., stam., and pistUs as in Potentilla. 

 Receptacle large, succulent, pulpy, deciduous. Style lateral 

 near tlie base of the nut. Seed ascending. 



11. Rttbus. Cal. concave or flatfish, 5-parted. Pet. 5. 

 Stam. many. Styles nearly terminal. Carp, many, succur- 

 lent (drupes), placed upon a hemispherical or conical spongy 

 receptacle. Seed pendulous. 



** Attachment of the seed distant from that of the style, radicle 

 inferior. Nuts with long awnlike styles. 



12. Dbtas. Cal. 8 — 10-cleft, in one rmo. Pet. 8 — 9. Stam. 

 many. Fr. of many small nuts, tipped with the persistent 

 hairy styles, which are not jointed. Keceptacle flat, dry. 

 Seed ascending. 



13. Geitm. Cal. 10-cleft, in 2 rows, the outer parts smaller. 

 Pet. 5. Stam. many. Fr. of many small nuts, tipped wit 

 the persistent yomiei^ styles hooked at the joining. Kecep- 

 tacle elongated, dry. Seed ascending. 



Tr. IV. ROSIDJE. Fruit formed of many small dry nuts en- 

 closed in the fleshy calyx-tuhe. 



14. Rosa. Cal. urceolate, contracted at the mouth, ultimately 

 Jleshy, 5-fld. Pet. 5. Stam. many, inserted with the petals 



on the rim of the tiihe of the calyx. 



p2 



