RANUNCULACEAE. 



Vol. II. 



i6. SYNDESMON lloffmg. Flora. 15: Part 2, Intell. RI. 4, 34. 1832. 



[Anemoneli-a Spach, Hist. Veg. 7: 239. 1839.] 

 A glabrous perennial herb from a cluster of tuberous-thickened roots, with basal 2-3- 

 ternately compound leaves, those of the involucre similar but sessile, and large terminal 

 umbellate slendcr-pedicelled white flowers. Sepals thin, petaloid. Petals none. Stamens all 

 anther-bearing. Achenes terete, deeply grooved; stigma sessile, truncate. [Greek, bound 

 together, the plant uniting many of the characters of Anemone and Thaliclruin.] 

 A nionotypic genus of eastern North America. 



X. Syndesmon thalictroides (L.) Hoffmg. Rue-Anemone. Fig. 1891. 



Atwmoiie thalictroides L. Sp. PI. 542. 1753. 

 Tlialictrum anemonoides Michx. Fl. Bor. Am. 1 : 



322. 1803. 

 Syndesmon thalictroides Hoffmg. Flora 15: 



Part 2, Intell. EI. 4, 34. 1832. 

 Anemonclla thalictroides Spach, Hist. Veg. 7 : 



240. 1839. 



Low, glabrous, 4'-9' high, the flowering 

 stem arising in early spring from the cluster 

 of tuberous roots, the ternately-compound 

 basal leaves appearing later and resembling 

 those of Thalictrum. Leaves of the involucre 

 similar, sessile, the leaflets long-petioled ; 

 sepals S-io, white or pinkish, longer than the 

 stamens; flower i'-i' broad; flowers perfect, 

 umbellate immediately above the involucre; 

 achenes sessile, pointed, 4"-6" long. 



In woods. New Hampshire and Massachusetts 

 to Florida, Ontario, Minnesota and Kansas. 

 Leaflets are occasionally borne on the stem below 

 those of the involucre. March-June. Wind- 

 flower. May-flower. 



17. PULSATILLA [Tourn.] iMill. Card. Diet. Abr. Ed. 4. 1754. 



Perennial scapose herbs, with thick rootstocks, basal long-petioled digitately divided 

 leaves, ;aid large purple or white solitary flowers. Involucre remote from the flower, 

 3-leaved. Sepals petaloid. Petals none. Inner stamens anther-bearing, the outer ones often 

 sterile. Achenes with long persistent plumose styles. [Latin name, unexplained.] 



About 18 species, natives of the north temperate and subarctic zones. Besides the following, 

 another occurs in northwestern North America. Type species : Anemone Pulsatilla L. 





I. Pulsatilla patens (L.) Alill. Pasque 

 Flower. Fig. 1892. 



Anemone patens L. Sp. PI. 538. 1753. 

 P. patens Mill. Card. Diet. Ed. 8. No. 4. 1768. 

 fClematis hirsulissiina Pursh. FI. Am. Sept. 385. 1814. 

 Anemone Nnltalliana DC. Syst. i: 193. 181S. 

 Anemone patens var. Nutialliana A. Gray, Man, Ed. 5, 



36. 1867. 

 P. hirsutissima Britton, Ann. N. Y. Acad. Sci. 6: 217. 



1891. 



Villous, 6'-i6' high. Leaves much divided into 

 narrow linear acute lobes, the basal on slender 

 petioles, those of the involucre sessile and erect 

 or ascending: sepals ovate-oblong, light bluish- 

 purple ; fruit a head of silky achenes with long 

 plumose styles, like those of some Clematis. 



In dry soil, prairies of Illinois to British Columbia. 

 Nebraska and Texas. Europe and northern .'Ksia. .'\fter 

 flowering the peduncle elongates, sometimes to a foot or 

 more. Consists of several races, the American ones 

 mostly with wider leaf-lobes than the European. March- 

 April. American Pulsatilla. Hartshorn- or head-ache-plant. Wild crocus. Mayflower. Easter- 

 flower. Gosling. Badger. April-fools. Prairie-smoke or -anemone. Wind-flower. Rock-Iily. 



