ROSACEAE. 



VOL. II. 



i. Poterium Sanguisorba L. Salad Bur- 

 net. Fig. 2266. 



Poterium Sanguisorba L. Sp. PI. 994. 1753. 

 Sanguisorba minor Scop. Fl. Cam. Ed. 2, i : no. 



1772. 

 Sanguisorba Sanguisorba Britton, Mem. Torr. Club 



5 : 189. 1894. 



Glabrous or pubescent, erect, slender, peren- 

 nial, branched, io'-2o' high. Stipules usually 

 small, laciniate ; leaflets 7-19, ovate or broadly 

 oval, deeply incised, short-stalked or sessile, 6"- 

 10" long; flowers greenish, in dense peduncled 

 globose-ovoid heads, 3 "-6" long, the lower ones 

 perfect or staminate, the upper pistillate; stamens 

 12 or more, drooping ; stigmas purple ; calyx- 

 lobes ovate, acute or acutish; fruit i"-2" long. 



In dry or rocky soil and in ballast, southern On- 

 tario, Maine, New York and Pennsylvania to Mary- 

 land. Naturalized or adventive from Europe and 

 native also of Asia. Summer. Garden-burnet. Blood- 

 wort. Bibernel. Pimpernelle. Toper's-plant. 



22. AGRIMONIA [Tourn.] L. Sp. PI. 448. 1753. 



Perennial erect herbs, often glandular. Leaves alternate, petioled, odd-pinnate, with 

 smaller leaf-segments interposed between the larger ones, and conspicuous stipules. Flowers 

 small, regular, perfect, yellow, in narrow spicate racemes. Calyx-tube in fruit obconic, 

 hemispheric or turbinate, often grooved, uncinate-bristly above, somewhat constricted at the 

 throat, the 5 lobes connivent. Petals 5, small. Stamens 5-15, slender. Carpels 2, included; 

 style terminal ; stigma 2-lobed ; ovules pendulous. Fruit dry, mostly reflexed ; achenes 1-2, 

 oblong. Seed suspended, its testa membranous. [Ancient Latin name.] 



About 15 species, natives of the north temperate zone, Mexico, and the Andes of South 

 America. Besides the following, another occurs in the Southern States. Type species : Agrimonia 

 Eupatoria L. 

 Racemes and leaves beneath with loose spreading hairs or glabrous. 



Roots not tuberous ; fruit large, turbinate, with numerous radiating bristles. i. A. gryposepala. 

 Roots tuberous ; fruit very small, hemispheric, with few ascending or erect bristles. 



2. A. rostellata. 

 Racemes and leaves beneath closely or softly pubescent. 



Roots tuberous ; stems pubescent ; leaves not glandular-dotted beneath. 



Small, often simple, with elongated terminal raceme; leaflets 3-5. 3. A.pumila. 



Larger, paniculate-branched; leaflets 5-11. 4- A.mollis. 



Roots not tuberous ; stems hirsute ; leaves glandular-dotted beneath. 



Leaflets mostly 7-9 ; fruit large, the bristles connivent. 5- A. striata, 



Leaflets mostly 11-17 ; fruit small, the bristles radiate. 



6. A. parviflora. 



i. Agrimonia gryposepala Wallr. Tall Hairy Agrimony. Fig. 2267. 



A. Eupatoria hirsuta Muhl. Cat. 47. 1813. 

 Agrimonia hirsuta Bicknell, Bull. Torr. Club 23 : 



509. 1896. 

 Agrimonia gryposepala Wallr. Beitr. Bot. 1 : 49. 



1842. 



Mostly 3-4 tall (2-6), minutely glandu- 

 lar, villous. Leaves large ; leaflets thin, bright 

 green, mostly 7, spreading, elliptic to broadly 

 oblong, or the odd one obovate, apex acute, 

 base often subcordate, coarsely serrate, the 

 margins and nerves beneath ciliate, the lower 

 surface rarely pubescent; interposed leaf-seg- 

 ments ovate, mostly 3 pairs; stipules broad, 

 coarsely cut-toothed ; flowers 4"-6" broad, the 

 buds ovoid, acute; fruit reflexed, 3" long, 

 short-turbinate, abruptly contracted at the 

 pedicel, the disk convex, the dilated marginal 

 rim bearing numerous reflexed spreading and 

 erect bristles. 



Woods and thickets, Nova Scotia to Minnesota, 

 North Carolina and California. Roots fibrous. 

 Feverfew. Beggar's-ticks. Cockle-bur. Stickweed. 

 Stickseed. June-Aug. 



