RANUNCULACEAE 



Plate 2: A. Caltha palustrjs, 1, flower, 2, fruit; B. Ranunculus septentrionalis ; C, Aquilcgia 



canadensis. 1. flower, 2. fruit: D, Actaea rubra. 1, (lower. 2. fruit; E. Thalictrum dioecum, 

 1, pistillate flower, 2, staminate flowers; F, Delphinium albescens. 



Aquilegia — Columbine 



(L. aquila, eagle, derivation doubtful) 

 PI. 2. fig. C : 1. 2 



1. Native perennial: flowers scarlet and yell6w 



2. Cultivated short-lived perennials 



a. Spurs short and hooked; flowers purple or white 



b. Spurs long and slender, not hooked 



jal Flowers blue, sepals wide spreading, 3-4 cm. long 

 (b) Flowers yellow, sepals ascending, less than 3 cm. 



Coptis — ( ioldthread 



(Gr. koptos, cut, from the lea\< 

 Leaves trifoliate; flowers white: root yellow 



Batrachium — Frogwort 



(Gr. batrachion, frogwort) 

 I eaves divided into thread-like segments, submerged 



Myosurus — Mouse-tail 



(Gr. mys, myos, mouse, ura, tail) 

 Sepals and petals minute; pistils many on a long axis 



Ranunculus — Buttercup, Cr< >\\ fi « ' 



(L. ranunculus, a little frog) 

 PI. 2, fig. B 



1. Aquatic or mud plants with finely cut leaves 



a. Flower 7-14 mm. wide; lobes of submerged leaves not thread-like 



b. Flower 15-30 mm. wide; lobes of submerged leaves thread-like 



2. Terrestrial plants 



a. Leaves all lobed or divided 



(1) Flowers less than 10 mm. wide, style hooked 



(2) Flowers 15-25 mm. wide, style not hooked 

 (a) Plant low. tufted and silky- : leaflets narrow 

 (.b) Plant over 2 dm. tall ; leaf segments broad 



• x. Plant very hairy 

 y. Plant slightly hairy 



b. Basal leaves mostly not lobed or divided 



(1) Plants creeping, rooting at the nodes; basal leaves linear to 



spatulau 



(2) Plants erect ; basal leaves reniform or ovate 



(a) Basal leaves reniform; flowers less than 10 cm. 



(b) Basal leaves ovate; flowers 10-30 cm. 



Actaea — Baneberry 



(Gr. aktea, rider) 

 PI. 2. fig. D : 1, 2 



1, Pedicels slender; berries ovoid-ellipsoid 



a. Berries red 



b. Berries white 



2. Pedicels thick ; berries globular-ovoid, white 



A. canadensis 

 A. vulgaris 



A. caerulea 



A. chrysdntha 



C. tr if alia 



B. trichophyllum 



M. minimus 



R. J'urshii 

 R. delphinifolius 



R. recurvdtus 

 R. fasciculdris 



R. hispidus 



R. septentrionalis 



R. fldmmula var. rSptans 



R. abortivus 



R. oralis 



A. rubra 



A. rubra forma neglecta 



A. alba 



