ROSACEA. (ROSE FAMILY.) 115 



1. A. Eupatdria, L. (Common Agrimony.) Leaflets 5-7 with mi- 

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

 the calyx. — Borders of woods, common. July -Sept. (En.) 



2. A. parviflora, Ait. Leaflets crowded, 11-19, with smaller ones inter- 

 mixed, lanceolate, acute, deeply and regularly cut-serrate, as well as the stipules ; 

 petals small. — Woods and glades, Pennsylvania and southwestward. July. 



5. SANGU1SORBA, L. Great Burnet. 



Calyx colored, 3-bracted, the tube 4-angled, constricted ; the lobes 4, spread- 

 ing. Petals none. Stamens 4 ; the filaments usually enlarging upwards. Pis- 

 tils 1 or rarely 2 : style slender, terminal : stigma pencil-form, tufted. Achenium 

 included in the indurated 4-winged calyx-tube. Seed suspended. — Herbs, w r ith 

 unequally pinnate leaves, and small flowers, sometimes polygamous, in close 

 spikes or heads. (Name from sanguis, blood, and sorbeo, to absorb ; the plants 

 having been esteemed as vulneraries.) 



1. S. Canadensis, L. (Canadian Burnet.) Stamens much longer 

 than the calyx ; spikes cylindrical and elongated in fruit ; leaflets numerous, 

 ovate or oblong-lanceolate, serrate, obtuse, heart-shaped at the base, stipellate ; 

 stipules serrate. 1J. — Bogs and wet meadows ; chiefly northward. Aug. -Oct* 

 — A tall herb : flowers white, sometimes purple. 



Poterium Sanguisorba, the Common Burnet of the gardens, has mo- 

 noecious polyandrous flowers. 



6. AL CHE MIL LA, Tourn. Ladt's Mantle. 



Calyx-tube inversely conical, contracted at the top ; limb 4-partcd, with as 

 many alternate bractlcts. Petals none. Stamens 1-4. Pistils 1 -4; the slen- 

 der style arising from near the base of the ovary ; the achenia included in the 

 persistent calyx. — Low herbs, with palmately lobed or compound leaves, and 

 small corymbed greenish flowers. (From Alkemelych, the Arabic name.) 



1. A. arvensis, L. (Parsley Piert.) Stems (3' -8' high) leafy ; leaves 

 3-parted, with the wedge-shaped lobes 2 - 3-cleft, pubescent ; flowers sessile in the 

 axils. ® — Eastern Virginia. (Adv. from Eu.) 



A. alpina, L., is said by Pursh to grow on the Green and White Mountains, 

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



7. SIBBALDIA, L. Sibbaldia. 



Calyx flattish, 5-cleft, with 5 bractlets. Petals 5, linear-oblong, minute. Sta- 

 mens 5, inserted alternate with the petals into the margin of the woolly disk 

 which lines the base of the calyx. Achenia 5-10; styles lateral. — Low and 

 depressed mountain perennials. (Dedicated to Dr. Sibbald, Prof, at Edinburgh 

 at the close of the 17th century.) 



1. S. procumbens, L. Leaflets 3, wedge-shaped, 3-toothed at the 

 apex ; petals yellow. Alpine summits of the White Mountains of New Hamp- 

 shire, and northward. (Eu ) 



