790 



CLEMATIS 



CLEMATIS 



E. Plant herbaceous, upright: 

 sepals imbricate in bad; 

 stamens pubescent at the 



base 19. Stanley! 



EB. Plants woody, climbing: sepals 



valvate; stamens glabrous. 

 P. Achenes with short style; 

 pedicels longer than the 

 sepals. 



G. Number of sepals 4-' fls. 



open campanulate, 



usually 1-2 in. across. 



H. Style glabrous: fls. 1-2 



in. across, often in 



S's 20. Viticella 



HH. Style pubescent except 



at the apex; fls. 1 



in. or less across. . . .21. campaniflora 



GO. Number of sepals 



usually 5-6: fls. flat, 



2-4 in. across 22. florida 



FF. Achenes with long plumose 



style. 



G. Pedicels shorter than 

 sepals: Ivs. simple or 



ternate 23. lanuginosa 



GO. Pedicels longer than se- 

 pals: fls. from last 

 year's wood in spring 

 or early summer: Ivs. 

 ternate or pinnate .... 24. patens 

 DD. Lfts. or Ivs. serrate: fls. in 

 axillary clusters, or solitary 

 on last year's branches with 

 the Ivs. in spring, white or 

 pink. 



E. The sepals with a small invo- 

 lucre below their base; fls. 

 nodding, open campanulate. 

 F. Lvs. simple: fls. whitish. . .25. cirrhosa 

 FF. Lvs. ternate: fls. greenish 



yellow, spotted red inside.2d. balearica 

 EE. The sepals without involucre. 

 F. Lvs. pinnate; Ifts. small, 



about % in. long 27. gracilifolia 



FF. Lvs. ternate; Ifts. 1-8 in. 



long. 



G. Lfts. glabrous or spar- 

 ingly pubescent 28. montana 



GG. Lfts. densely silky pu- 

 bescent beneath, less so 



above 29. Spooneri 



cc. Fls. in terminal or axillary 

 panicles or cymes, rarely 3 (if 

 solitary, with bracts about the 

 middle of the pedicel) white, 

 rarely pinkish; sepals 4 (some- 

 times 4-6 in No. 87), usually 

 small (except in No. 37). 

 D. Lvs. S-foliolate; Ifts. always 

 entire, often sub-coriaceous or 

 coriaceous. 

 E. The fls. from the old wood 



from scaly buds 30. Annan dii 



EE. The fls. from the new growth. 

 F. Lfts. ovate or ovate-oblong. 

 G. Filaments as long or 

 shorter than anthers: 

 Ifts. rounded or sub- 

 cordate at the base. . . .31. Meyeniana 

 GG. Filaments longer than 

 the anthers: Ifts. cune- 



ate at the base 32. crassif olia 



FF. Lfts. narrow-lanceolate or 



oblong-lanceolate 33. Pavoliniana 



DD. Lvs. pinnate or bipinnate (if 

 S-foliolate, Ifts. lobed or den- 

 tate or fls. dioecious). 

 E. The fls. perfect. 



F. Lfts. entire or nearly entire, 

 or 8-lobed: anthers linear, 

 much longer than broad. 

 G. Plant herbaceous, up- 

 right 34. recta 



GG. Plant climbing, half- 

 woody. 



H. The Ivs. pinnate 35. paniculata 



HH. The Ivs. bipinnate. . . . 36. Flammula 

 FF. Lfts. serrate, occasionally 

 nearly entire: anthers 

 oval or oval-oblong, not 

 more than twice as long 

 as broad (longer in Nos. 

 37 and 38). 



G. The fls. 1-3, long-stalked, 

 2-3 in. across: Ivs. 



pinnate 37. Fargesii 



GG. The fls. in panicles or 

 cymes, not exceeding 

 1 in. diam. 



H. Lvs. ternate or biter- 

 nate: fls. l /%in. 

 across, in many-fid. 



cymes 38. apiifolia 



HH. Lvs. usually bipin- 

 nate; Ifts. ovate-lan- 

 ceolate: tails of fr. 

 about %in. long. . .39. brevicaudata 

 HHH. Lvs. pinnate: tails 



longer. 



I. Sepals glabrous in- 

 side: Ifts. pubes- 

 cent beneath 40. grata 



n. Sepals pubescent in- 

 side and outside: 

 Ifts. glabrous or 



nearly so 41. Vitalba 



EE. The fls. dioecious. 



F. Foliage deciduous: sepals 4- 



G. Fls. appearing on the 



young wood in summer, 



less than 1 in. across. 



H. Lvs. ternate; Ifts. 2-3 



in. long 42. virginiana 



HH. Lvs. pinnate; Ifts. 1- 



2 in. long. 



I. Plant glabrous: Ifts. 

 rounded or sub- 

 cordate at the base.43. ligusticifolia 

 n. Plant pubescent: Ifts. 

 truncate or cune- 

 ate at the base. ... 44. Drummondii 

 GG.Fls. on last year's 

 branches from scaly 

 buds in early spring, 



iy<i in. across 45. lasiantha 



FF. Foliage evergreen; Ivs. ter- 

 nate: sepals 5-7 46. indivisa 



BB. Stamens pubescent; fls. yellow or 

 yellowish, nodding: achenes with 

 plumose tails. 

 C. Lvs. pinnate or bipinnate. 



D. Fls. usually several, 1-2 in. 

 across, pale yellow: Ivs. bluish 

 or grayish green; Ifts. usually 

 entire, often lobed. 

 E. Lfts. often oblong or lanceo- 

 late: sepals pubescent in- 

 side 47. orientalis 



EE. Lfts. usually ovate or oval, 

 pale bluish green: sepals 



glabrous inside 48. glauca 



DD. Fls. solitary, 2-3 in. across, 

 on stalks to 10 in. long; sepals 

 glabrous inside: Ifts. usually 



lanceolate, serrate, green 49. tangutica 



CC. Lvs. biternate; Ifts. serrate, green: 



fls. solitary 50. serratif olia 



Section VIORNA. 

 Group CRISPS. 



1. integrifolia, Linn. Herbaceous, erect, becoming 

 2 ft. high: Ivs. rather broad, entire, ovate-lanceolate: 

 fls. solitary, nodding; sepals 4, rather narrow, blue, 

 coriaceous, 1-2 in. long. June Aug. Eu. and Asia. 

 B.M. 65. 



The following are supposed to be hybrids of this species: C. 

 cylindrica, Sims ( X C. crispa. C. integrifolia var. diversifolia, Hort. 

 C. integrifolia var. pinnata, Hort.). Lvs. more or less irregularly 

 lobed or pinnate: fls. solitary, cylindric-campanulate with the sepals 

 more or less recurved from the middle, blue or bluish-violet. B.M. 



