CLASS I. DICOTYLEDONS 



The embryo contains two leaves (cotyledons) which, on germination of the seed, 

 usually push up to the light and appear as the first leaves. The leaves which follow 

 have a network of branching veins. Bark, wood, and pith are clearly distinguished 

 in the stem. The parts of the flower are usually in fours or fives, a multiple of 

 four or five, or a large indefinite number. 



SUB-CLASS I. POLYPETALAE 

 Petals and sepals both present as a rule (sometimes one or both absent) ; petals, 

 when present, not united (can be pulled off one by one). 



Family i. RANUNCULACEAE. P4 or more, A 00, G, 2-00 

 (Anemone, Buttercup, Columbine, Delphinium) 



CLEMATIS. Virgin's Bower. CHmbers climbing by leaf-stalks; Ls. oppo- 

 site, compound. Fls. without conspicuous petals, their place being taken by 

 showy sepals. 



(a) Fls. cup-shaped (sepals upright) 



C. aethusifolia. 6. August-October. D. Ls. pinnate; Iflts. ov., 2, deeply dis- 

 sected. Fls. \, yellow, nodding. Manchuria. 



C.{Atragene) alpina.K\^'m& CXtmztis. 6. April. D. Ls. twice 3-fol. ; Iflts. ov., 

 2, toothed. Fls. 1 1, violet-blue or white, with petal-like sterile stamens, 

 slender-stalked, nodding. North Europe. 



C. caw^flm7?om. Bell-flowered Clematis. 20. May-July. D. Ls. 2-pinnate; 

 Iflts. ov., lane, 3, entire or lobed. Fls. i, white, tinged with violet, long- 

 stalked, nodding. Portugal. 



C.crispa. Frilled Clematis. 10. June. D. Ls. pinnate; Iflts. ov., lane, entire or 

 lobed. Fls. i, bluish purple, long-stalked, nodding, sepals with frilled 

 edges. U.S.A. 



C. heracleifolia. 3. September. D. Ls. 3-fol.; Iflts. broadly ov., 6, coarsely 

 toothed. Fls. i, tubular, blue, in axillary clusters, sepals recurved at ends. 

 China. 



C. orientalis. See under {h). 



C. texensis (coccinea). Scarlet Clematis. 6. June-August. D. Ls. pinnate or 

 deeply lobed; Iflt. often a tendril. Fls. i, urn-shaped, red. U.S.A. 



C F/orna. Leather Flower. 10. May-August. D. Ls. pinnate; Iflts. ov., 3, 

 entire or lobed. Fls. i, urn-shaped, with thick reddish purple sepals 

 recurved at ends, nodding. U.S.A. 



(b) Fls. saucer-shaped (sepals spreading), solitary 

 or in clusters of five or less 



C.florida. 10. April-May. D. Ls. twice 3-fol.; Iflts. ov., 2, entire or lobed, 

 glossy dark green above, hairy below. Fls. 3, solitary, white with green 

 band on back of sepals, long-stalked, stalk with two ov. bracts in middle, 

 P6 or more. Japan. 



C.Jackmannii. 10. August-September. D. Ls. pinnate; Iflts. ov., rather large, 

 entire or lobed. Fls. 5, purple, P usually 4. Hybrid. (Fig. 18 A.) 



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