OF ARTS AND SCIENCES : MAY 13, 1873. 563 



below the summit of the ovary. — Canada to Georgia aud westward 

 to Arkansas and the Saskatchewan. 



Var. simplex, Torr. & Gray. With stouter and more ascending 

 stems, 1-2° long, rarely creeping ; less hairy. 



33. P. nemoralis, Nestl. Stolons filiform ; pubescence minute, 

 appressed ; leaves ternate, occasionally quinate ; leaflets cuneate- 

 obovate, 4 - 9" long, subpetiolulate, coarsely serrate, sparingly villous ; 

 sepals and petals usually 4, the bractlets a little shorter ; petals 2 - 3" 

 long, obcordate ; style attached below the apex of the ovary. — Re- 

 ported from Labrador and a specimen preserved in herb. Hooker, but 

 collector not stated. Possibly not American. 



Doubtful arid Excluded Species. 



P. digitato-flabellata, Br. & Bouch., is said to have originated 

 from "North America." Tall and loosely corymbose ; leaves quinate; 

 leaflets slightly hairy above, subcanescent and tomentose beneath, 

 cuneate-flabellate, trifid or incisely lobed, the unequal segments acute ; 

 bractlets equalling the sepals ; petals obovate, subretuse, equalling or 

 exceeding the calyx. Known only in cultivation in Europe. 



P. multijuga, Lehm., appears both from the figure and description 

 in Lehmann's Revisio to be Horkelia Califomica, var. cuneata, except 

 only that it is scarcely supposable that the peculiar characteristics of 

 the flower could have escaped notice. No true Potentilla is found that 

 answers to the description. 



SYNONOMY. 



31. Potentilla Anserina. Linn., Spec, 495. For foreign synonomy consult 

 Lehmann's Monograph, p. 74, and Revisio, p. 188, and Ledebour, Fl. Ross., 2. 44. 

 — Michx., Flora, 1. 304. James, Long's Exped., 2. 342. Cham. & Schlecht, Lin- 

 naea, 2. 24. Meyer, PI. Lab., 76. Hook., Fl. Bor. Am., 1. 189. Bongard, Veg. 

 Sitch., 132. Schlecht., Fl. Lab. in Linn., 10. 98. Hook. & Arn., Bot. Beech., 123 

 and 338. Torr. & Gray, Flora, 1. 444. Torrey, Frem. Rep., 89 ; Pac. R. R. Rep., 



4. 84. Gray, PI. Fendl., 42. Seemann, Bot. Herald, 29 and 52. Engelm., PI. Upp. 

 Miss., 191. Newberry, Pac. R. R. Rep., 6. 72. Cooper, Pac. R. R. Rep., 12. 38, 

 43, and 59. Hook, f., Distrib. Arc. PI., 290. Bourgeau, Palliser's Rep., 256. Rothr., 

 Fl. Alaska, 445. Gray, Manual, 155. Bolander, Cat., 12. Watson, King's Rep., 



5. 89. — Collectors numerous. 



Var. grandis. Lehm. in Hook. Fl. Bor. Am., 1. 189; Revis., 190. Torr. & 

 Gray, Flora, 1. 444. Ledeb., Fl. Ross., 2. 44. 

 Var. Grcenlandica. Hook., Parry's 3d Voy., Appx., 125 ; Fl. Bor. Am., 1. 189. 



