14 RANUNCULACE^. Hepatlca. 



i 15. H. Americana, Ker, Bot. Reg. t. 387. H. triloba, var. Americana, DC. 1. c. 21 6.^ 

 Anemone Ilepatica, L. Spec. i. 538. — Open woods, Nova Scotia to the northern Kocky 

 Mountains, lat. 55°, and Sitka, according to Bongard, south through the upper country to 

 the border of Florida, west to Missouri and Minnesota. (Eu., N. Asia.) Passes into 

 H. acutiloba, BC. Lobes of the leaves ovate and acute, occasionally lateral lobes 2-cleft : 

 akeues sliglitly stipitate. — Prodr. i. 22; Gray, Gen. 111. i. t. 5. //. triloba, var. acuta, 

 Pursh, Fl. ii. 391.^ Anemone acutiloba, Lawson, llev. Canad. Rauunc. 30. — Quebec to upper 

 part of Georgia, and Iowa. Rarely has the middle lobe or all of them incised. 



4. ANEMONELLA, Si^ach. (A diminutive of Anemone.) — Hist. Veg. 

 vii. 239; Gray, Bot. Gaz. xi. 39. Syndesmon, Hoffmansegg, Flora, 1832, ii. 

 Intell.-Blatt. 34, name only, referring to this and to a Thalictrum. — Single 

 species, flowering in early spring. 



A. thalictroid.es, Spach, 1. c. 240. Low and very glabrous perennial : roots tuberiform 

 and fascicled : slender and simple scapiform stems and radicle petioles a span or two high ; 

 the latter twice ternate into slender petiolules, bearing roundish leaflets with mostly sub- 

 cordate base and 3-lobed broad apex : involucre of 6 to 9 similar filiform-petiolulate leaflets 

 (i. e. belonging to 2 or 3 trifoliolate leaves with primary petiole wanting or obsolete), 

 subtending an umbelliform cyme of few or several (rarely solitary) slender-stalked 

 flowers: sepals 5 to 10, oval, white, sometimes pinkish, 4 or 5 lines long, tardily deciduous, 

 nmch longer than the stamens and carpels : anthers oval : disciform stigma horizontal or 

 nearly so, obscurely 2-lobed, sessile, but in fruit comparatively^ small and slightly elevated 

 on the pointed apex of the oblong-fusiform 8-10-ribbed akene. — Anemone t/ialictroides, Jj. 

 Spec. i. 542; Hill, Veg. Syst. 25, t. 46, f. 5; Willd. Ilort. Berol. t. 44; Juss. Ann. Mus. iii. 

 249, t. 21 ; Sims, Bot. Mag. t. 866 ; Bart. Fl. N. A. ii. t. 44.^ Thalictrum anemonoides, 

 Michx. Fl. i. 322 ; DC. Syst. i. 186; Sweet, Brit. Fl. Gard. ser. 2, t. 150; Gray, Gen. 111. i. 



. 24, t. 6; Meehan, Native Flowers, ser. 1, ii. t. 30; Lecoyer, Bull. Soc. Roy. Bot. Belg. 

 xxiv. 223. Sipidesmon thalictroides, Hoffmansegg, 1. e., name only ; * Lawson, Monog. 

 Ranunc. Canad. 31. — Dry woods, New England and Ontario district of Canada to 

 Minnesota, to Maryland, and south along the mountains and upper country to W. Florida. 

 Ajiore pleno form has been found wild. 



5. THALiICTRUM, Tourn. Meadow-rue. (Old Greek and Latin name, 

 of uncertain derivation.) — Perennial herbs of temperate regions, largely northern, 

 usually glabrous, with alternate compound or decompound leaves, petioles dilated 

 at base, and panicled or corymbiform cymose or rarely racemose small flowers, in 

 most of ours dioecious or polygamous and with dull colored sepals, these 4 or 

 sometimes 5 in number and deciduous. There are not rarely small appendages 

 to some partial petioles or leaflets, which have been called stipels, but they are 

 inconstant. — Inst. 270, t. 143; Benth. & Hook. Gen. i. 4; Lecoyer, Bull. Soc. 

 Bot. Belg. xxiv. 1885, 78-325. ^ 



* Flowers hermaphrodite, on a low scapiform stem : filaments capillary and drooping. 

 T. alpinum, L. A span or more high : leaves all or chiefly radical, inch or two long, 

 pinnatelv 5-7-foliolate, with lower pinnie similarly 3-5-foliolate : leaflets cuneate-obovate, 

 few-lobed, prominently veined beneath : flowers drooping, purplish : anthers linear-oblong : 



1 Add syn. Hepatlca Htpnlicn, Karst. Deutsclil. Fl. 559. 



2 Add syn. Hepatlca acuta, Britton, Ann. N. Y. Acad. Sci. vi. 234. 

 8 Add Garden, xxxv. 409, t. 699. 



4 See also Gray, Bot. Gaz. xi. 39. 



5 In accordance with the expressed intention of Dr. Gray, his manuscript relating to the genus 

 has been freely revised in the light of Prof. Trelease's careful treatment of the group (Proc. Bost. 

 Soc. Nat. Hist, xxiii. 293-304); and plants of subsequent description have been inserted where 

 necessary. 



