BOSACE^E. (ROSE FAMILY.) 151 



5. ALCHEMIIiLA, Tourn. LADY'S MANTLE. 



Calyx-tube inversely conical, contracted at the throat ; limb 4-parted with as 

 many alternate accessory lobes outside. Petals none. Stamens 1-4. Pistils 

 1 - 4 ; the slender style arising from near the base of the ovary ; the achenia in- 

 cluded in the tuBe of the persistent calyx. Low herbs, with palmately lobed 

 or compound leaves, and small corymbed greenish flowers. (From Alkemelyeh, 

 the Arabic name. ) 



1. A. ARVENSIS, L. (PARSLEY PIERT.) Small annual (3' -8' high), 

 leafy ; leaves 3-parted, with the wedge-shaped lobes 2 - 3-cleft, pubescent ; flow- 

 ers sessile in the axils. Eastern and Central Virginia. (Adv. from Eu.) 



A. ALphfA, L., is said by Pursh to grow on the Green and White Moun- 

 tains, New England : but there is most probably some mistake about it. 



6. AGBIMONIA, Tourn. AGRIMONY. 



Calyx-tube top-shaped, contracted at the throat, beset with hooked bristles 

 above, indurated in fruit and enclosing the 2 achenia ; the limb 5-cleft, closed 

 after flowering. Petals 5. Stamens 12-15. Styles terminal. Seed suspended. 

 Perennial herbs, with interruptedly pinnate leaves, and yellow flowers in slen- 

 der spiked racemes : bracts 3-cleft. (Name a corruption of Argemonia, of the 

 same derivation as Argemone, p. 59.) 



1. A. Eupatbria, L. (COMMON AGRIMONY.) Leaflets 5-7 with minute 

 ones intermixed, oblong-obovate, coarsely toothed ; petals twice the length of the 

 calyx. Borders of woods : common. July - Sept. (Eu.) 



2. A. parviflbra, Ait. (SMALL-FLOWERED A.) leaflets crowded, II- 

 19, with smaller ones intermixed, lanceolate, acute, deeply and regularly cut-serrate, 

 as well as the stipules ; petals small. Woods and glades, S. New York ( C. F. 

 Austin) to Virginia, Kentucky, and southward. July. 



7. DRYAS, L. DRYAS. 



Calyx open, flattish, 8 - 9-parted. Petals 8-9, large. Otherwise like Geum 

 ' Sieversia. Dwarf and matted slightly shrubby plants, with simple toothed 

 leaves, and solitary large flowers. (Name from Dryades, the nymphs of the 

 Oaks, the foliage of the original species resembling oak-leaves in miniature.) 



1. D. integrif61ia, Vahl. Leaves oblong-ovate, slightly heart-shaped, 

 with revolute margins, nearly entire, white-downy beneath, flowers white. 

 White Mountains, New Hampshire, Prof. Peck, according to Pursh ; not since 

 met with : but it grows in Lower Canada. (Eu.) 



8. GEUM, L. AVENS. 



Calyx bell-shaped or flattish, deeply 5-cleft, usually with 5 small bractlets at 

 the sinuses. Petals 5. Stamens many. Achenia numerous, heaped on a coni- 

 cal or cylindrical dry receptacle, the long persistent styles forming hairy or 

 naked and straight or jointed tails. Seed erect. Perennial herbs, with pin- 

 nate or lyrate leaves. (Name from yeu'w, to give an agreeable flavor, the roots 

 being rather aromatic.) 



