Retisio PotenUUanim. 



161 



169. Potentllla nana. 



P. pumila, pilosa; caulibus erectis uni- v. nunc paucifloris pilis longis pa- 

 tulis mollibus superne petiolisque incanis, foliis utrinque pilosis suhtus 

 subcanescentibus ; foliolis suborbiculato-obovatis grosse serralo-denla- 

 tis, dentibus 3 — 7 aequalibus rotundato-oblusis; slipulis brevibus ova- 

 tis oblusis; sepab's subaequilongis v. e^pfemis sublongioribus subrolun- 

 dis V. lalo-eHiplicis rotundato-obtusis, internis ovalis aculiusculis ; pe- 

 tah's amplis obcordatis calyce dense piloso diiplo Iriplove longioribus. 

 P. nana Consp. Potent, herb. Willd. in Magaz. der Gesellsch. naturf. Freunde 

 zu Berl. VII, pag. 296. Ledeb. Fl. Ross. II, pag. 56, No. 47. Torr, 

 et Gray Fl. of North - Americ. I, pag. 441, No. 18. Hook, et Ar», in 

 Beechey's Voy. pag. 123. Lehm, in Hook. Fl. Boreal. Americ. I, p. 194, 

 No. 27. Ser. in DC. Prodr. II, pag. 573, No. 11. Spreng. Syst. veg. II, 

 pag. 541, No. 83. Lehmann Monogr. pag. 181, No. 80 (non Humb. et 

 Bonpl.). 



Icon. Lehm. Monogr. tab. 17. 

 Hab. in Sibiria orientali et in insulis Oceani orienlalis; in Labradoria 

 inque America arctica ad sinum Kotzebue et „in the highest Rocky 

 mountains.'' 4 (v. g.) 



ISO. Potentilla emarginata. 



P. molliter hirsuta; caulibus suberectis elongalis aphyllis v. gracilibus 1 

 — 2floris petiolisque pilis longis horizontalibus inslructis, superne folio 

 unico simplici ; foliis radicalibus longe petiolatis subtus margineque prae- 

 sertim pilis subpatentibus hirsulis; foliolis sessilibus v. subsessilibus, 

 lateralibus basi obliquis, omnibus obovatis basi integerriraa cuneatis 

 reliquomargine profunde inciso-dentatis, dentibus utrinque 2 — 3 aequa- 

 libus obtusiusculis, terminali majore porrecto ; stipulis ovalo-lanceolalis 

 elongatis obtusiusculis : sepalis subaequilongis, externis oblongo-linea- 

 ribus obtusis reliquis ovatis acutiusculis; petalis disjunctis obovatis 

 emarginatis basi cuneatis calyce hirsuto subduplo longioribus. 

 Vol. XXIV. Snppl. 2. 21 



