ICOSANDRIA— POLYGYNIA. Potentilla. 425 



to our plant as the likewise yellow Sibbaldia, which, according 

 to Dr. Nestler, this Potentilla tridentata represents in the herba- 

 rium of Vaillant. Few of the most obscure of its genus have 

 had more unsuitable synonyms. 



11, P. Fragar'iastrum. Strawberry-leaved Cinque- 

 foil. 

 Leaflets three, roundish-obovate, serrated, hairy. Stems 



jirostrate. Seeds corrugated, hairy at tlie scar. 

 P. Fragariastrum. Ehrh. Herb. 146. Hall.jun.in Ser. Mus.vA. \9. 

 P. Fragaria. *' DeCand. Fr. v. 4. 468." Nestl. Potent. 76. Ser. 



Mus. v.\.59.L 4.f. 2. Hook. Scot. 1 64. 

 P. fragarioides. Tlllars Daiiph. v. 3. 561 . 



Fragaria sterilis. Linn. Sp. PL 7 09. M'illd.v.2A093. H.jBr.546. 

 Engl. Bat. v. 25. t. 1/85. Curt. Lond. fasc. 3. t. 30. Rail Syn. 

 254. Hofm. Germ, for 1791. 178. t. 6. Bauh. Pin. 327. FL 

 Dan. t. 1579. 

 F. n. 1113. Hall Hist. v. 2. 45. 



F. minime vesca, sive sterilis. Ger. Em. 998./. Lob. Ic. 698./. 

 Barren Strawberry. Pet. H. Brit. t. 40. f. 8. 

 In dr\' gravelly pastures, common. 

 Perennial. March, April. 



Root woody, running deep into the ground. Herb hairy, with 

 every character of a Strawberry, except in ih^ fruit. Stems pro- 

 cumbent, but not creeping, or taking root ; the longer ones 

 leafy, barren ; shorter somewhat ascending, bearing one or two 

 leaves, and terminating in a very few small white ^t)u;er6", on 

 simple hairy stalks. Leaves ternate, on long footstalks, with a 

 pair of linear acute sfipulas united to their base. Leaflets 

 rounded, broadly obovate or wedge-shaped, with several broad 

 serratures, the central tooth small. Cal. silky, its outer seg- 

 ments rather the smallest. Pet. inversely heart-shaped, as long 

 as the calyx. Recept. small, dry, hairy, permanent as in every 

 Potentilla. Seeds, according to the observations of my most 

 accurate friend Mr. Horrer, not even, but transversely wrinkled. 

 Thcv are also hairy about the scar, and inner margin, not 

 crowned with line i)ristK's like the bust. 

 1 cannot understand by what rule this plant has been, by some 

 distinguislied l)otanists, refi-rred to Comarum. It is a perfect 

 Potentilla in character, though, like some others of this genus, 

 it hits entirely the habit of a Fragaria. Ehrhart first removed 

 it from thence, and 1 prefer iiis s])ecific name, though not one of 

 the most elegant, to Fragaria. The latter would, indeed, be ad- 

 missible if the |)lant were the only Fragaria ever described, and 

 that genus were sunk in Potentilla. 1 hope my ftllow labourers 

 will not take olfence if I try to keep the princii)les of our science 

 incorrupt; though in nomenclalinc ihis is not to be accom- 



