Obdbb 47.— EOSEWOETS. 



195 



Fig. ^2. Flowersof tlie Great Eed Cherry; 6, section, 

 showing the pevigynons stamens, the single ovary, &l 

 Fiff. 458. Section of the clierry, sho-wing the seed lying 

 in the stone and pnlp. Fiff. 454. Section of the flower of 

 Lady's-niantle (Class Book, p. 325), with the simple 

 ovary, lateral style, &c. Fiff. 455. A flower of Strawberry. Flff. 456. A section of Iho same, 

 showing the perigynous stamens, the many simple pistils on thejarge torus. Fig. 457. Section 

 of a Rose, showing tho many simple pistils sunk in the hollow torus, &o. A 



Analysis of the Genera. 



§ Flowers with 1 pistil and no petals. Herbs ... .a 



§ Flowers with 1 pistil and 5 petals. Shrubs or trees 2 



§ Flowers with 2 — oo pistils 3 



2 Style lateral, i. «., arising from the side of the ovary o 



2 Style terminal, i. e., arising from the top of the ovary c 



3 Pistils (carpels) 2-5, all consolidated with the calyx. Fruit a pome. . . .d 



3 Pistils (carpels) 2-50, free, in an open or closed calyx 4 



4 Carpels 1-seeded, aohenia inclosed in the ealyx tube e 



4 Carpels 1-seeded, achenia dry or pulpy in an open calyx 5 



4 Cai-pels several-seeded, pods in an open calyx k 



5 Styles persistent on the dry aehcnia f 



5 Styles falling off with the rest of the flower 6 



6 Calyx entirely bractless.' Flowers never yellow. , ..g 

 6 Calyx with bractlets beneath it .as if double. . .h 



a Stamens 1-4. Style lateral. Fls. scattered. Laiys-mantle. Alchemil'la. 



a Stamens 4. Style terminal. Fls. in dense spikes. Burnet. SAWGmaoR'BA. 



a Stameiis oo. Style terminal. Flowers in spilces, Burnet. Pote'kium. 



b Stamens about 20. Drupe 1-seeded. S. Cocoa PVum. Chhtsobala'kus. 



e Stone globular, smooth. Fruit not glaucous. Cherry. Ceb'asds. 1 



c Stone flattened, smooti. Fruit glaucous or downy. Plum. Peu'nus. 



o Stone roughened with pits and furrows. Fruit pulpy. Peach. Pee'sioa. 



c Stone roughened with pits and furrows. Fruit dry. Alrrumd. Amtg'daltjs. 

 d Petals spat.-oblong. Pome with 5 dble.-cells. SJiad-hiisK Amelan'ohiee. 2 

 d Petals roundish. Pome with bony, I'seeded cells. Thorn. Ceat^'gus. 

 d Petals roundish. Pome with thin, 2-seeded cells. , Apph Pykus. 3 



d Petals roundish. Pome with 5, many-seeded cells. Quince, Ctdo'nia. 4 



