ORDER 47. ROSACEJE. 325 



a deadly poison, residing chiefly in the kernels. Of the Rosaceas, as ornamental flowering shrub*, 

 it is scarcely necessary to speak, neither of its many delicious fruits, as the Apple, Pear, Quince, 

 Apricot, Peach, Plum, Cherry, Strawberry, Blackberry and Raspberry. 



SUBORDERS, TRIBES AND GENERA. 

 SUBORDER I. 8ANGUISORBEJ2. Carpels 1 (rarely 2 4). Petals 0. Herbs, (a) 



a Stamens 1 to 4, style lateral. Flowers scattered ALCUEMILLA 1 



a Stamens 4, style terminal. Flowers in dense spikes SANGUISORBA 2 



a Stamens 00, style terminal, stigma fringed. Fls. spicate POTERIUM 9 



SCBORDER II. CHRYSOBALANE^E. Carpel 1, style lateral. Petals 5. 



Shrubs CHRYSOBALAXUM. 4 



SUBORDER III. AMYGDALE^E. Carpel 1, style terminal Pet 5. Trees, &c. (b) 



b Stone smooth, globular. Fruit smooth but not glaucous CERASCS. 5 



b Stone smooth, flattened. Fruit glaucous with bloom, or downy PRUNTTS 6 



b Stone roughened with pits and furrows. Fruit pulpy PERSICA 7 



Fruit dry A JCTGDALTTS 8 



$ SUBORDER IY. POME.E. Carpels 2 to 5, consolidated with the calyx. Fr. a pome, (c) 



C Ovary half-superior, 2-carpeled. Leaves very thick, lucid PHOTIX A 9 



C Ovary inferior, Petals bearded. Radicle retracted ERYOBOTRYA 10 



Petals smooth, oblong-spatulate AMELANCHIER 11 



roundish. Carpels 1-seeded CRAT^GUS 12 



Carpels 2-seeded * . . . P YRUS 13 



Carpels 00 -seeded CYDONIA 14 



SUBORDER V. ROSE^E. Carpels 2 to 50, free, in an open or closed calyx. (*) 



* Tribe 1. ROSIDE^E. Carp. 1-seeded achenia inclosed in the calyx tube, (d) 



* Tribe 2. FRAGARIDE^E. Carp. 1-seeded. Achenia dry or pulpy in .an open calyx, (e) 



* Tribe 3. SPIRIDE^E. Carpels several-seeded follicles in an open calyx, (f ) 



d Carpels many, in the fleshy calyx. Fls. often double ROSA. 15 



d Carpels 2 only, in the dry, fluted, echinate calyx AGRIMOXIA. 16 



e Styles persistent on the dry achenia. Petals 8 or 9 DRYAS. 17 



6 Styles persistent on the dry achenia. Petals 5 GEUJI. 18 



6 Styles deciduous, Calyx bractless. Fr. a heap of pulpy achenia RUBTTS. 19 



Calyx bractless. Ach. dryish. Sepals unequal DALIBARDA. 20 



Calyx bractless or minutely bracteoled. Sep. equal . . WALDSTEINIA. 21 



Calyx bracteolate, Receptacle pulpy, globular, red.FRAGARiA. 22 



Recept spongy.glob.Fls. purple. COMARUM. 28 



Receptacle dry. Stamens oo ..POTEXTILLA. 24 



Stamens 5. . . SIBBALDIA. 25 



f Follicles 2 to 10-seeded, Petals obovate, cyanic SPIR^A. 26 



f Follicles 2 to 4-see<led. Petals lance-linear, cyanic GILLF.XIA. 27 



f Follicles 1-seeded. Petals multiplied, orange-yellow KERRIA. 28 



1. ALCHEMIL'LA, L. LADIES' MANTLE. (The plant is called in 

 Arabic dlkemelyeh.) Calyx 4-toothed, with 4 external bracteoles; pe- 

 tals ; stamens 1. to 4, carpels (1 to 4) mostly solitary, with the style 

 lateral, stigma capitate ; seed suspended. Herbs with palmate-lobed or 

 incised Ivs. and small green fls. 



1 A. arvensis Scop. PARSLEY PIERT. Lvs. incisely 3-lobed or parted, the seg- 

 ments 2 or 3-cleft, pubescent, cuneate at base ; fls. axillary, clustered. (1) "Waste 

 grounds, E. Va. A worthless weed, so small as to be easily overlooked 



2 A. alpinua L. Lvs. radical, silky beneath, digitately 5 to 7 -Mate, segm. ob- 

 lanceolate, cuneiform at base, incisely serrate at apex ; fls. corymbous. "On the 

 peaks of high mts., Yt. and N. H." (Pursh). Bu* the plant has never been re- 

 discovered there. It is an elegant plant, sometimes cultivated. Common in Eur. 



2. SANGUISOR'BA, L. BURNET. SAXIFRAGE. (Lat. sanguis, sor- 

 bere, to absorb blood ; the plant is esteemed a vulnerary.) Calyx tube 

 4-sided, 2 or 3-bracted at base ; limb 4-parted ; petals ; stamens 4, 

 opposite the calyx segments ; filaments dilated upward ; style 1, filiform; 

 acheninm dry, included in the calyx. Herbs with unequally pinnate 

 Ivs. Fls. in dense spikes. 



