eosacejE. (rose family.) 151 



5. ALCHEM±LLA, Toum. Labi's Mantle. 



Calj-x-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 palmatcly lobed 

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

 the Arabic name.) 



1. A. AEVEN8I8, L. (Parsley Pieet.) 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 Virginia. (Adv. from Eu.) 



A. ALPiNA, 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. AGEIMONIA, Tourn. Agmmont. 



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. Elipatbria, L. (Common Agkimont.) 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. parvifl6ra, 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. DRY AS, L. Betas. 



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 Drt/ades, 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 rcvolutc 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-eleft, 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 lyrafe leaves. (Name from yeu'u, to give an agreeable flavor, the roots 

 being rather aromatic.) 



