358 THE KINDS OF PLANTS 



long stalks: later leaves, often 3-5-lobed or -parted, and sessile or nearly so: 

 petals small, yellow, not equal to the sepals: styles very short, curved. 

 Shady woods and along stream-sides. April to June. 



R. micranthus, Nutt. Pubescent, smaller than preceding and basal 

 leaves ovate, but not heart-shaped, some 3-parted: fairly common. 



R. recurvatus, Poir. Usually pubescent, erect, branching, 1-2 ft. : leaves 

 all petioled and similarly 3-parted : sepals longer than the pale yellow petals 

 and recurved: beaks of achenes strongly hooked. Common. Spring. 



6. AQUILEGIA. Columbine. 



Upright herbs, with compound leaves which have petioles expanded 

 at the base: sepals 5, somewhat petal-like; petals 5, each one produced 

 into a long nectary spur ; pistils 5 : fruit a several-seeded follicle. Delphinium 

 or larkspur is an allied genus. 



a. Spurs straight. 



A. canadensis, Linn. Common wild columbine. Often 

 incorrectly called honeysuckle. Fig. 517. About 2 ft.: 

 leaflets rounded or obovate, toothed at top: flowers 

 about 2 in. long, drooping, scarlet and orange or nearly 

 yellow, the stamens projecting. Common on rocks. 

 A. chrysantha, Gray. Yellow columbine. Flowers 

 517. " bright yellow, often tinged, erect or becoming so. New 



Aquilegia canadensis. Mexico and Arizona, but frequent in gardens. 



aa. Spurs hooked at the end. 



A. vulgaris, Linn. Blue columbine. A European species, common in 

 gardens, and often full double: flowers varying from blue and purple to 

 white, with rather short and thick hooked spurs. 



7. CALTHA. Marsh Marigold. Cowslip (in America) 



Low tufted herbs with undivided leaves, and clusters of yellow butter- 

 cup-like flowers: sepals 5-9, petal-like; petals none; pistils 5-10, ripening 

 into several-seeded follicles. 



C. paliistris, Linn. About 1 ft. high: leaves rounded or kidney-shaped, 

 crenate or nearly entire. Wet places, in early spring. Used for "greens." 



8. P^ONIA. Peony. Piney. 



Stems shrubby and perennial or, as in the commoner garden forms, her- 

 baceous, from thick, fleshy roots: leaves ternately and pinnately compound: 

 flowers large, terminal, solitary; sepals 5, unequal, leafy, persistent; petajs 

 5 to indefinite in number; ovaries 3-5, surrounded by a disk: fruit, many- 

 seeded follicles. Oriental. 



P. officinalis, Linn. Common garden peony. Large flowers, double, 

 red, pink, flesh-colored to white; carpels 2, pubescent, forming 2 erect, 

 many-seeded follicles. June. 



