428 ICOSANDRIA— POLYGYNIA. Geum. 



2. T. reptans. Trailing Tormentil. 



Stem pi'ostrate, scarcely branched. Leaves stalked. Sti- 

 pulas undivided. 



T.reptans. Linn. Sp. PL 7 1 6. fVilld.v.2.ll\2. H.Br.553. Engl. 



Bot. V. 12. t. 864. Hook. Scot. 164. Rail Syn. 257. 

 Potentilla pvocumbens. Sibth. 162. 

 P. nemoralis. Nestl. Potent. 65. 

 Pentaphyllum reptans alatum, foliis profundius serratis. Plot Oxf. 



t. 9./. .5. 

 Plot's Tormentil. Pet. H. Brit. t.4l.f.\0. 



About hedges and the borders of fields, but sparingly. 



In severcil parts of Oxfordshire, and at Braintree, Essex. Rmj. At 

 Lakenham, near Norwich. Mr. Crowe. In Hertfordshire. Mr. 

 Woodward. Surrey. Herb. Light/. In barren ground in Scot- 

 land. Sibbald. Hooker. At Brighouse, near Halifax, Yorkshire. 



Perennial. June, July. 



Totally different from the last, as well as from Potentilla reptans, 

 with which Hudson confounds it. The stems are 2 feet long, 

 prostrate, but not creeping. Stipulas lanceolate, entire. Leaves 

 on long hairy footstalks ; leaflets 3 or 5, obovate, hairy, light 

 green, more or less deeply cut or serrated. Fl. of a full yellow, 

 twice the size of the foregoing, on long slender stalks. The 

 lowermost liave occasionally 5 petals, and 10 segments to the 

 calyx, as in the last ; but what some have taken for such a va- 

 riety of this plant, I have found to be Potentilla alpestris, with 

 partly decumbent stems. 



T. reptans, Fl. Dan. t.\2\7 , appears to be a mere variety of erecta. 



259. GEUM. Avens. 



Linn. Gen. 256. Juss. 338. Fl. Br. 554. Lam. t. 443. Gcertn. t. 74, 

 Caryoi)hyllata. Tourn. M51, A D F G. 



Nat. Ord. see n. 254. 



Cal. interior, of 1 leaf, flat, permanent; limb in 10 acute, 

 deep segments ; 5 alternate ones much the smallest. Pet. 

 5, rounded, undivided or cloven, attached by their claws 

 to tlie rim of the calyx opposite to its smaller segments, 

 being about equal to the longer ones. Filam. numerous, 

 awl-shaped, from the rim of the calyx, shorter than the 

 corolla. Anth. short, roundish, of 2 cells. Germ, superior, 

 ovate, compressed, very numerous, in a round head. 

 Styles long, lateral, with a joint above the middle ; lower 

 part permanent; upper deciduous. Stigmas simple. Seeds 

 ovate, compressed, hairy, each with a long lateral tail, 

 formed of the enlarged, hardened, lower part of the style, 

 terminating in a hook. Recept. cylindrical, dry, hairy, 

 seated on the permanent reflexed calyx. 



