172 ROSACEAE 



4. Agrimonia mollis (T. & G.) Britton. SOFT Agrimony. (Man. 

 p. 511 ; I. F. f. ip6o.) Dry woods and thickets, Conn, to Mich., N. C. 

 and Tex. — Pennsylvania : Monroe ; Northampton ; Bucks ; Lan- 

 caster. 



5. Agrimonia Brittoniana Bicknell. BriTTon's Agrimony. (Man. 

 p. 511 ; I. F. /. fp6r.) Along thickets and roadsides, Quebec to N. Y., 

 south along the mountains to W. Va. — Pennsylvania : MonroB ; North- 

 ampton. 



6. Agrimonia parviflora Soland. Many-Fi^owered Agrimony. 

 (Man. p. 512 ; I. F. f. 1962.) In moist or dry soil, N. Y. to Mich., Ga. 

 and Miss. — Pennsylvania : Delaware, Tinicum ; Bucks ; Berks ; Lan- 

 caster ; Dauphin ; Allegheny. 



20. SANGUISORBA L. 



Stamens numerous : flowers in head-like spikes : corolla greenish. 



I. 5'. Sa-nguisorba.: 

 Stamens 4 : flowers in elongated spikes : corolla white. 2. S. Canadensis. 



1. Sanguisorba Sanguisorba (Iv. ) Britton. Salad Burnet. (Man. 

 p. 512 \ 1. ¥. f. ig6s.) In dry or rocky soil and in ballast, Ont. to Pa. 

 and Md. Nat. or adv. from Eu. — Pennsylvania : Northampton ; Mon 

 ROE ; Allegheny. 



2. Sanguisorba Canadensis L. American Great Burnet. (Man, 

 p. 512; I. F. y. icid^.) In swamps and low meadows, Newf. to Mich, 

 and Ga. — Pennsylvania : Monroe ; Northampton ; Bucks ; Dela- 

 ware ; Lancaster ; Lebanon ; Huntingdon. 



21. ROSA L. 



Styles cohering and forming a column, exserted. i. Jl. setigera. 



Styles distinct, included. 

 Sepals persistent : stems unarmed or nearly so. 2. R. blanda. 



Sepals deciduous ; leaflets normally 5-12: stems erect or ascending: hy- 

 panthium often pubescent or glandular. 

 Leaflets with serrulate or finely serrate blades. 

 ' Leaflets with coarsely serrate blades. 

 Fruit subglobose. 

 Leaflets 5-7 : spines slender : flowers solitary or few. 

 Leaflets 7-9 : spines stout : flowers corymbose. 

 Fruit oval to narrowly ovoid. 

 Blades of the leaflets simply serrate. 

 Blades of the leaflets doubly serrate. 



1. Rosa setigera Michx. Prairie or Climbing Rose. (Man. p. 

 513 ; I- F'. /• ^9^5-) In thickets and on prairies, Ont. to Wis., Fla. and 

 Tex. Escaped in N. J. and Va..— Pennsylvania : Philadelphia, Ger- 

 man town ; Bucks ; Washington ; Allegheny. 



2. Rosa blanda Ait. Smooth or Meadow Rose. (Man. p. 513 ; I. 

 F. /. ig66.) In moist, rocky places, Newf. to Vt. and northern N. J., 

 west to Ont. and l\\.— Pennsylvania : Bucks ; Lancaster ; Perry ; 

 Franklin ; Susquehanna ; Huntingdon ; Delaware. 



