IS'J ROSACEA 



T. P. Sanf;in's6rba (Salad-Burnet). — Glabrous, or nearly so, 

 about a foot high ; leaves of 5 — 10 pairs of oblong, coarsely serrate 

 leaflels, having the taste and smell of cucumber ; pediDule angular ; 

 flower-heads reddish, the upper flowers producing their crimson 

 stigmas before the lower ones produce their 20 — 30 pendulous 

 stamens ; calyx-iube with netted veins between the 4 wings. — Dry 

 pastures, especially on a calcareous soil. — Fl. June — August. 

 Perennial. 



2. P. polygamum (Prickly Salad-Purnet). — .A closely-allied 

 species with a larger ffiiif and prickly wings to the calyx-tube. — 

 Cultivated on (-halky soil. — Fl. June, July. I'erenninl. 



13. Sanguisorba (Burnet). — A herbaceous perennial with hori- 

 zontal rhizome; leaves pinnate, of rj — 13 distinctly stalked 

 leaflets ; flowers all perfect, in cylindric 'heads, an inch or more in 

 length, containing honey ; sepals 4 ; petals o ; stamens 4 ; achenes 

 I — 2. (Name from the Latin sanguis, blood, sorheo, I absorb, the 

 plant having been used to stanch bleeding.) 



I. ^. ofllcindlis (Great I-jurnet). — A tall erect branched plant ; 

 /c(7Z'M pinnate of 9 — 13 oblong-cordate, ^serrate, distinctly stalked 

 leaflets ; flowers in oblong or cylindric, long-stalked heads, 

 purplish-brown, all perfect; stamens 4, not exserted ; ealyx-tuhem. 

 fruit smooth between the 4 wings. — Damp meadows; not un- 

 common. — Fl. June — August. Perennial. 



14. Ri')^.\ (Rose). — Shrubs, usually prickly ; leaves pinnate, 

 serrate ; stipules adnate to the sheathingcjpetiole ; flowers terminal ; 

 rt;/i'.v-/;^(^(' persistent, fleshy, contracted .at' the mouth, with 5 leafy, 

 imbricate sepals : petals 5 ; stamens indefinite, inserted on the disk 

 at the mouth of the caly.x-tube ; carpels generally numerous, in the 

 bottom of the calyx tube, i-ovuled ; fruit, an etKrio of achenes. 

 (Name Classical.) 



Botanists differ widely in their conceptions of the species of this 

 difficult genus ; but the indigenous British forms fall into some 

 twelve or thirteen fairly distinct groups, most of which are ac- 

 cepted by all authorities and their s(=quence generally agreed 

 upon. Hybrids, however, occur between members of different 

 groups. In collecting herbarium specimens of Roses, a twig 

 bearing a fully-formed fruit, with the sepals still on it, should be 

 preserved. 



I. R. spinosissima (Burnet or Scotch .Rose). — An erect, much- 

 branched shrub, I — 4 feet high, covered, with very unequal, nearly 

 straight prickles, passing into stiff bristles and glandular hairs ; 

 leaves of 7 — 9 simply serrated, smooth leaflets ; y/czfc.^.*- solitary, 

 white ; sepals undivided, smooth ; /;v//Vsubglobose, dark purple. — 



