84' ROSACEA. 
Order XXVII. ROSACEA. 
Cal. 4 — 5-parted, lined with a disk below, odd lobe superior. 
Pet. 5, equal. Stam. usually indefinite. Carp, several or soli- 
tary, distinct or combined with each other or with the calyx. 
Styles distinct, often lateral. Fruit various. Seeds nearly 
without albumen, embryo straight. — L. alternate, usually com- 
pound, with stipules. 
Tribe I. AMYGDALEJE. Fruit a solitary drupe ; seeds 1—2, 
pendulous. Cal. deciduous. 
1. Prunus. Drupe fleshy, indehiscent. Putamen smooth or 
sulcated. 
Tr. II. SPIRsEjE. Fr. formed of several follicles ; seeds 1—6, 
suspended from the inner edges of the follicles. Cal. 
persistent. 
2. Spirt/EA. Cal. 5-cleft. Stam. numerous, inserted along 
with the pet. on a disk adhering to the calyx. Follicles 1 or 
more, usually distinct. Seeds 2 — G. 
Tr. III. DRYADEjE. Fr. formed of small dry (in Rubus succu- 
lent) nuts, few or numerous, and then inserted on a fleshy 
or succulent receptacle. Cal. persistent. 
* Attachment of the seed distant from that of the style, 
radicle inferior. 
3. Dryas. Cal. 8 — 9-cleft, in one row. Pet. 8 — 9. Stam. 
numerous. Fr. of numerous small nuts, tipped with the 
persistent hairy styles which are straight at the extremity, 
aggregated on a dry receptacle. Seed ascending. 
4. Geum. Cal. 10-clcft, in 2 rows, the outer parts smaller. 
Pet. 5. Stam. numerous. Fr. of numerous small nuts, 
tipped with the persistent jointed styles hooked at the joint, 
aggregated on a dry receptacle. Seed ascending. 
** Attachment of the seed near to that of the style, radicle 
superior. 
5. Sanguisorba. Fl. perfect. Cal. 4-cleft, with 2 or 3 ex- 
ternal scales at its base, tube quadrangular. Pet. 0. Stam. 4, 
opposite to the segments of the calyx. Nuts 2, included in 
the dry tube of the calyx. Style terminal. Seed suspended. 
6. Poterium. Fl. monoecious or polygamous. Cal. 4-cleft, 
with 3 external scales at its base, tube quadrangular. Pet. 0. 
Stam. 20—30. Nuts 2 — 3, included in the dry tube of the 
calyx. Style terminal. Seed suspended. 
7. Agrimonia. Calyx o-cleft, without external scutes; tube 
turbinate, armed with hooked bristles above and contracted at 
