422 ICOSANDRIA— POLYGYNIA. Potentilla. 



rous coarse hairs : stem-leaves of 3 narrower leaflets ; the up- 

 permost nearly sessile and entire, often simple. Stipulas hairy, 

 all combined with the footstalks ; the lower ones narrowest and 

 acute ; upper broader and shorter, various in size, less re- 

 markable than in the last. Fl. 2 or 3 at the upper part of each 

 stem, on long, hairy, solitary, simple stalks. Cal. very hairy, 

 and in some degree downy, its outer segments in some of my 

 specimens very distinctly three-ribbed, but this character is not 

 universal. 1 recommend it to future observation. Pet. some- 

 what heart-shaped, bright yellow, as long as the calyx, or longer. 

 Recept. hairy. Seeds scarcely at all wrinkled. 



All the above synonyms appear to me correct. There is a confu- 

 sion between the two works of Clusius, and his figure here in- 

 dicated, reprinted in Gerarde, is taken by Dr. Nestler for a good 

 representation of P. opaca. It is but just to observe that Lin- 

 naeus was of the same opinion. But the figure of Clusius to 

 which Nestler refers as verna, has ternate leaves, and upright 

 stems. Haller quotes Quinquefolium iertium of Clusius for an 

 acute-leaved variety of verna; but this is certainly quite unlike 

 our plant. I need not here refer to supposed varieties of this 

 species, which are described by various foreign writers, but not 

 known in Britain, nor do I perceive that any extraordinary diffi- 

 culties attend our verna. In a garden it becomes very luxuriant, 

 but the stems continue prostrate, and the outer segments of the 

 cahjx are either three-ribbed or not, on the same plant. 



Dr. Nestler refers to Engl. Bot. t. 37, as if it were a work of Vil- 

 lars, and the plant were there named serotina ; but this is the 

 fault of his printer. 



7. P. opaca. Saw-leaved Hairy CInquefoil. 



Radical leaves of seven hairy, linear-wedge-shaped leaflets, 

 deeply serrated throughout ; stem-leaves ternate, mostly 

 opposite. Stems recumbent. 



P. opaca. Linn. Am. Acad. V. 4.274. Syst. Nat.ed.\0.v.2.\064.A. 

 Sp. PL 713. Willd. V. 2. 1 1 03. Comp. 80. Engl. Bot. v. 35. 

 t. 2449. Hook. Scot. 1 62. D. Don Tr. of mm. Soc. v. 3. 304. 

 Jacq. Coll. y. 1 . 33. Ic. Bar. t.9\. Hall.jun. in Ser. Mus. v. 1 , 54. 

 ^4./. I. Nestl. Potent. 54. 



On the mountains of Scotland. 



Received from Scotland by the late Mr. Donn of Cambridge. Said 

 to have been found on the hills of Clova, Angusshire, as well as 

 in Perthshire, by Mr, G. Don. 



Perennial. June. 



Root woody, blackish, subdivided at the crown, and bearing nume- 

 rous leaves during winter. In spring it puts forth several re- 

 cumbent, slender, branched, hairy, many-flowered stems. Ra- 

 dical leaves on long hairy /oof sia/Ars, with a pair of small, linear, 

 or awl-shaped, hairy stipulas at their base ; leaflets constantly 7, 



