CANADIAN EANUNCULACE^. 19 



* Sepals 5-6. 

 Genus 10. COPTIS. Petals small. Carpels free, stipitato. 



Genus 11. AQUILEGIA. Petals prolonged backwards into long hollow spurs. 



Subtribe 3. Delphinb.e. Leaves palmati-norved or palmatisect. Flowers irregular. 

 Genus 12. DELPHINIUM. Dorsal sepal spurred behind. 

 Genus 13. ACONITUM. Dorsal sepal helmet-shaped. 



Subtribe 4. Cimicifugbje. Leaves ternate, sub-pinnate, or decompound. Flowers regular, in racemes. 



* Stamens numerous. 

 Genus 14. ACT.EA. Carpel 1, baccate. 



Genus 15. CIMICIFUGA. Carpels 1 or several, dehiscent follicles. 



ÏEiBB v. P^EOBÏIE^E. Sepals imbricate. Petals large. Carjiels with a circular disc, several or many 

 ovuled, dehiscent. Large herbs or slightly woody. Leaves radical or alternate, pinnately decompound. 

 Genus 16. P.EONIA. 



Genus I.— CLEMATIS, Limiœus. 

 Beutham and Hooker, Geuera Plautarum, I., p. 3. 



List of Species : — 



1. 0. verticillaris. 



2. C. Virgiuiaua. 



3. C. lig-usticifolia. 



4. C. Douglasii. 



[0. alpina, var. Ochotensis.] 



1. — Clematis verticillaris, De Candolle. 



Stem shrubby, slender, trailing or climbing, from ten to twenty feet or more in length. 

 Leaves of the barren or leaf-bearing shoots opposite, petioles twisted and clasping as 

 tendrils, each leaf consisting of three stalked leaflets, which are ovate, or slightly heart- 

 shaped, or oblong-lanceolate, shortly acuminate or acute, entire or more usually coarsely 

 and laciniately toothed or trifid, hairy when young, becoming nearly glabrous at 

 maturity. Peduncles opposite, each bearing one large cernuous flower. Sepals four in 

 number, one and a half to two inches in length, petaloid, ovate-lanceolate, acuminate, of a 

 pleasing but not bright purple colour, thin and flaccid, somewhat cupped and convergent, 

 forming a campanulate blossom, not expanding freely. Petals small, crowded, in form 

 of spatulate stamen-like processes, the inner series passing into stamens. The flowers, 

 which are from two to three inches in diameter, are produced in May, or early in June, 

 on the bare leafless shoots of the previous year, arising in pairs from the opposite buds 

 of the shoot. Each flower is accompanied by an apparent leafy verticil, formed of two 

 pairs of long-stalked trifoliate leaves, produced simultaneously with the development of 

 the flower. The flower arises from the axil of one of the upper pair of subtending leaves, 

 and from the other a leaf-shoot or branch shoots forth. The flowers are succeeded by 

 large heads of achenes with long silky plumose tails. The leaflets are long-stalked and 

 vary in form (as usual in this genus) from broadly ovate to ovate-lanceolate, usually more 

 or less cordate at base, acute or acuminate, somewhat lobed, coarsely toothed or entire, at 

 least towards the point, one and a half to two inches in length, and somewhat less in 

 breadth. Fl. May-June. 



