BUTTERCUP FAMILY 3 



1 1 ) Stem branched, hairy ; flowers 3-6 cm. 



wide . t. dichotoma 



(2) Stem simple, smooth; flowers 2-3 cm. wide A. nemorosa 

 h. Fruits smooth ; flowers usually yellowish A. narcissiflora 



Aquilegia Linne 1753 Columbine 

 ( Lat. Aquilegia, perhaps from Lat. aquila. eagle, in allusion to the re- 

 semblance of the spurs to an eagle's talons) 

 PI. 1, fig. 2-6. 



Sepals 5, petal-like, petals 5, spurred, red, yellow, blue or white, 

 stamens many, some often petal-or scale-like, pistils 5, the ovules man}'. 

 2-rowed, fruit a follicle: flowers regular, single or in cluster?: leaves usu- 

 ally twice ternately compound ; perennial. 



1. Flowers red to yellow 



a. Flowers red and yellow; spur 1-2 cm. long A. canadensis 



b. Flowers yellow; spur 3-6 cm. long A. chrysdntha 



2. Flowers blue, rarely white 



a. Flower stalk leafy 



(1) Flower large, 5-6 cm. wide A. caerxdea 



I 2 | Flower small, 2-3 cm. wide A. brevistyla 



b. Flower stalk leafless; leaflets crowded A.Jonesii 



Caltha Linne 1753 Marsh Marigold 



(The Latin name of the true marigold) 



Sepals 6-10, petal-like, white or yellow, falling away, petals none, 

 stamens many, pistils 3-10. fruit a beaked many-seeded follicle: flower? 

 regular, mostly single, or few in a cluster: leaves simple, elliptic to rounded : 

 fleshy perennials. 



Leaves heart-shaped at base, wavy-toothed: flower- 

 2-? cm. wide. C. leptosepala 



Clematis Linne 1753 Clematis, Virgin's Bower 



(Gr. klematis, a climbing plant) 



( Atragene Linne ) 



PI. 3, fig. 2. 



Sepals 4-5. petal-like, white to purple, petals 0. or merely broadened 

 itamens, stamens many, the outer often like tiny petal-, pistils many, fruit 



