SPECIES AND VARIETIES. 229 



(85) Dryas. 



D. octoretala : stems short, much branched, prostrate or 

 creeping, forming dense spreading tufts ; leaves crowded, ob- 

 long, deeply and regularly crenate, shining green above, white 

 and downy beneath; peduncles erect, 2-3 inches long, with ra- 

 ther large white solitary flowers ; awn of the carpels above an 

 inch long, feathery. — Limestone mountain districts. Fl. July, 

 August. 



(86) Agrimonia. Agrimony. 



A. Eupatoria : stems 2-3 feet high, clothed, like the leaves, 

 wth soft hairs ; leaves pinnate, with 5-9 ovate, coarsely- 

 toothed leaflets, intermixed with smaller ones ; spike long, 

 leafless, each flower in the axil of a small three-cleft bract ; 

 flowers, smalJ, yellow; tube of the calyx turned downwards 

 after flowering, forming a small burr. — Roadsides, waste places, 

 and borders of fields. Fl. June, July. 



(87) Fragaria. Strawberry. 



F. elatior : stem bearing few runners, which root and form 

 new plants at the nodes, as in F. vesca, but taller, with fewer 

 runners and flowers, usually entirely or partially unisexual; 

 leaves ternate, the leaflets oblong, plaited, coarsely- toothed, 

 hairy ; fruit perfumed. — Hautbois Strawberry. — Woods in the 

 south; rare. Fh June to September. 



(88) Rubus. 



R. Idseus : stems biennial, erect, 3-4 feet high, armed with 



weak prickles ; leaves pinnate, leaflets five in the lower, three 



in the upper ones, ovate or oblong, pointed, coarsely toothed, 



whitish underneath ; flowers white, in panicles at the ends of 



