224 American Species of the Genus Anemone. 



secondary involucres found in British Columbia (Macoun), at 

 Presque Isle, Penn. (Garber), and at Lincoln, Neb. (Webber), 

 Type in Herbarium of Columbia College. 



** Apparently intermediate between divisions * and***; achenia nume- 

 rous, densely capitate, but in the young state only slightly pubes- 

 cent. 



10. Anemone Tetonensis, Porter, n. sp. 



A. Baldensis, Hook., Fl. Bor. Am., i, 15 (1830)? not L. 



Sparingly pubescent with long whitish hairs, especially at the involucre, 

 erect, from a woody rootstock, 10-15 cm. high. Radical leaves slender- 

 petioled, ternately divided, the divisions cleft into linear-oblong, obtusish 

 lobes ; leaves of the involucre similar, on petioles about 1 cm. long, their 

 divisions and lobes somewhat broader ; flowers 1-2, long-peduncled, 1-1^ cm. 

 broad, red or pink ; sepals 5, ovate-oval, obtuse, finely appressed-pubescent 

 witbout; young achenia in a globose head about 6 mm. in diameter, sparingly 

 pubescent, tipped with short, subulate styles. 



Distrib. Idaho: Teton Range, 10,000 feet altitude, 1872 (Coul- 

 ter); Needle Peak of Lost River Mts., 1890 (Vernon Bailey). 



I am uncertain whether the A. Baldensis, of Hooker, belongs to 

 this species or to A. Drummondii, S. Wats. 



*** Achenia glabrous or merely strigose-pubescent, less numerous. 



f Plants strictly 1-flowered. 



\ Involucral leaves sessile or nearly so. 



o Achenia with long, reflexed styles. 



11. Anemone Richardsonii, Hook. 



A. Richardsonii, Hook., Fl. Bor. Am., i, 6 (1830). 



A. ranunculoides, Richards., Frank. Journ., App. 12, not L. 



A. arctica, Fisch., Linnsea, 1831, 574. 



A. Vahlii, Hornem., Fl. Dan., t. 2176. 



Low, slender, pubescent, 5-30 cm. high, from slender rootstocks. Radical 

 leaves reniform, slender-petioled, 3-5 parted, the lobes acute, broadly oblong, 

 dentate or crenate ; those of the involucre similar, sessile ; flower single, 

 about 20 mm. broad, white (?) ; sepals about 6, oblong ; head of fruit depressed- 

 spherical ; achenia nearly glabrous, compressed, ovate-oblong, reflexed, tipped 

 with a hooked persistent style of about their own length. 



Distrib. Greenland, shore of Hudson's Bay, British Columbia, 

 and in Arctic America generally to Alaska ; also widely distributed 

 in Siberia. 



Type of A. Richardsonii, Hook., in Herb. Mus. Brit, and of A. 

 Vahlii, Hornem., in Herb. Mus. Paris. 



