ICOSANDRIA— POLYGYNIA. PotentiUa. 425 



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

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

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

 had more unsuitable synonyms. 



11. P. Fragariastrum. Strawberry-leaved Cinque- 

 foil. 



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

 prostrate. Seeds corrugated, hairy at the scar. 



P. Fragariastrum. Elirh. Herb.146. Hall. jun. in Ser. Mus. v. I. 49. 

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



Mus. V. 1 . 59. t. 4./. 2. Hook. Scot. 1 64. 

 P. fragarioides. Villars Dauph. u. 3. 56 1 . 

 Fragaria sterilis. Linn. Sp. PI. 709. Willd. v. 2. 1093. Fl. Br. 546. 



Engl. Dot. V. 25. t. 1785. Curt. Lond. fasc. 3. t. 30. Raii Syn. 



254. Hujfm. Germ, for 1/91. 178. t. 6. Bauh. Pin. 327. Fl. 



Dan. t. 1579. 

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



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

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



In dry gravelly pastures, common. 



Perennial. March, April. 



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

 every character of a Strawberry, except in the 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 powers, on 

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

 pair of linear acute stipulas united to their base. Leaflets 

 rounded, broadly obovate or wedge-shaped, with several^ bsoad 

 .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 

 PotentiUa. Seeds, according to the observations of my most 

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

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

 crowned with fine bristles like the last. 



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

 distinguished botanists, referred to Comarum. It is a perfect 

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

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

 it from thence, and I prefer his specific name, though not one of 

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

 missible if the plant were the only Fragaria ever described, and 

 that genus were sunk in PotentiUa. 1 hope my fellow labourers 

 will not take oftence if I try to keep the principles of our science 

 incorrupt) though in nomenclature this is not to be accom- 



