RANUNCULACE^. O 



nearly sessile, acute at each end, strongly ribbed, twice as long as the style. 

 — T. Coi-nuii and T. pubesccns Pursh. T. revohdum and T. corynellum 



D. a 



Wet grounds. From lat. 56° N. to Car. June, July. %.—Stem 3—5 feet 

 high, branching. Leaves very variable in form, deep-green above, paler glau- 

 cous smooth or pubescent beneath. Flowers in a compound leafy panicle. *S'e- 

 "pals greenish-white, oblong, much shorter than the stamens. Carpels about 

 3 lines long, beaked with the persistent style. Common Meadow Rue. 



2. T. dioicum Linn. : very smooth ; leaves decompound, on short pet- 

 ioles ; leafets rounded, crenately and obtusely lobed, glaucous beneath ; 

 flowers dioecious or polygamous ; peduncles as long as the leaves ; carpels 

 oblong, sessile, strongly ribbed. T' Icevigaium Mich. T. purjmrascens 

 Linn. 



Banks of streams. Can. to Car. N. to lat. 67°. W. to Oregon. April, 

 May. %.. — Stem 1 — 2 feet high. Flowers in a terminal panicle. Sepals white 

 or purplish. Filaments much longer than the sepals. Anthers yellowish- 



Early Meadow Rue- 



** Stamens shorter than the petaloid calyx. 



3. T. anemonoides Mich. : root tuberous ; radical leaves biternate ; leaf- 

 ets subcordate, 3-toothed ; floral leaves petioled, resembUng an involucre ; 

 flowers perfect, few, umbelled ; petaloid calyx 8 — 10-leaved. Anemone 

 thalictroides Linn. 



Woods, Common throughout the U. S. April — June. %.. — Stems or^capes 

 4 — 8 inches long, often several from one root. Flowers about an inch in di- 

 ameter. Sepals 6 — 10, white or purplish, twice as long as the stamens. The 

 flowers of this species resemble those of Anemone, but the fruit that of Thalic- 

 trum. Riie Anemone. 



3. ANEMONE. Lin7i.—Wmd Flower. 

 (From the Greek avenos, wind ; because the flowers are supposed to open 

 when the wind blows.) 



Involucre remote from the flower, of 3 divided leaves. Calyx 

 petaloid, with 5 — 15 sepals. Petals none. Achenia mucronate. 



1. A. nemorosa Linn.: leaves ternate; leafets undivided, or with tlie 

 middle one 3-cleft and the lateral one 2-parted, incisely toothed, acute; 

 those of the involucre sunilar, petioled ; sepals 4 — 6, oval or elliptical. 

 A. lancifolia Pursh. 



var. quinquefolia, D. C. : lateral leaves of the involucre 2-parted to the 

 base. A. quinquefolia Linn. 



Woods. Can. to Car. N. to lat. 53°. W. to the Rocky Mountains. April, 

 May. '2J.. — Stem or scape 4 — 8 inches high, slender. Flov)ers about an inch in 

 diameter. Sepals 4 — 7, wlute or purplish. Wood Anemone. 



2. A. Pcnnsylvanica Linn. : leaves 3 — 5-parted ; segments 3-cleft ; lobes 

 oblong, incisely toothed, acuminate ; involucre similar, 2-leaved, sessile ; 

 sepals 5, elliptic ; carpels hairy, compressed, crowned with a long style. 

 A. aconitifolia Mich. A. dichotoma Linn. 



Meadows. Throughout the U. S. N. to Hudson's Bay. June, July. %.— 

 Stem 12 — 18 inches high. Flowers 1 — \\ inches in diameter. Sepals white and 

 membranaceous. Pennsylvania Wi?id Flower. 



3. A. cylindrica Gray : silky, pubescent ; leaves ternately divided ; late- 



