CLEMATIS 



CLEMATIS 



789 



feet in a season. It seems thus far to be entirely free 

 from disease, is delightfully fragrant, and so floriferous 

 that the blossoms form a dense sheet of bloom, remain- 

 ing in full beauty for several weeks. The foliage is very 

 thick and heavy, thus making it very desirable for 

 covering porches and arbors. 



Crispa (blue) and texensis (red) are species with 

 very pretty, bell-shaped flowers. They are easily 

 grown and do well in almost all situations. 



The perennial, non-climbing varieties of clematis are 

 most pleasing border plants, succeeding well in all ordi- 

 nary soils and making a rich show of bloom at their 

 flowering season. Davidiana (blue) and recta (white) 

 are about the best known and most desirable varieties 

 of this class. 



To grow clematis most successfully, they should be 

 given a good depth of loamy soil, with a fair supply of 

 well-rotted manure spaded in and thoroughly distrib- 

 uted through the soil. In hot, dry weather, the plants 

 should be regularly watered in order to obtain the 

 greatest number of flowers possible, for the plants are 

 very susceptible to injury by drought. A point of great 

 importance, especially in caring for newly set plants, 

 is to provide a firm support for them to climb upon. 

 A solid wooden or metal trellis is preferable, for the 

 reason that it prevents the plants from being whipped 

 about by the winds, which often results in breaking the 

 stalks just above the ground or else in cracking the 

 outer bark of the stalks and rendering them more 

 liable to the attacks of insects and fungous diseases. 

 Training the vines upon strings, or a pliable support of 

 any kind, is not to be advised for this reason. Propa- 

 gation of the hybrid varieties is effected both by cut- 

 tings and by grafts. All of the type varieties grow 

 readily from seed. 



INDEX. 



KEY TO THE SPECIES. 



A. Sepals upright, forming a tubular or 

 urceolate jl.; stamens upright, op- 

 pressed, pubescent; or sepals more 

 spreading and /Is. with petaloid 

 staminodes. 



B. Fls. without petaloid staminodea. 

 C. Lvs. simple: herbaceous, not 



climbing. 

 D. Color of fls. purple or blue. 



E. The Ivs. thin, acute, sessile ... 1. integrifolia 

 EE. The Ivs. subcoriaceous, retic- 

 ulate, obtusish, short-peti- 



oled 2. Fremontii 



DD. Color of fls. yellow 3. ochroleuca 



cc. Lvs. compound. 



D. Lfts. entire: fls. solitary. 

 E. Plants upright, herbaceous. 

 F. Shape o/ Ifts. lanceolate: 

 Ivs. bipinnate or ternately 



compound 4. Douglasii 



FF. Shape of Ifts. ovate: Ivs. 



pinnate 5. aromatica 



EE. Plants climbing, shrubby. 

 F. Styles not plumose in fr. 

 a. The Ivs. not reticulate, 

 usually with terminal 



Ift 6. crispa 



GQ. The Ivs. reticulate , 

 usually without termi- 

 nal If t 7. Simsii 



FF. Styles plumose in fr. 



G. Fls. axillary, with the 

 pedicels much longer 

 than the fls. 



H. Sepals outside pubes- 

 cent, dull. 

 I. Lfts. subcoriaceous, 



reticulate 8. reticulata 



n. Lfts. membranous, 



indistinctly veined. 9. Viorna 

 HH. Sepals outside gla- 

 brous, bright scar let.. 10. texensis 

 GO. Fls. terminal and axil- 

 lary, the latter with the 

 pedicels shorter than 



the fls 11. fusca 



DD. Lfts. serrate: fls. usually clus- 

 tered or panicled. 

 E. Plants herbaceous, upright: 

 fls. clustered, often nearly 

 sessile. 

 F. Fls. blue or violet, in 



axillary clusters 12. heracleaefolia 



FF. Fls. whitish, usually in an 

 elongated terminal pan- 

 icle 13. stans 



EE. Plants climbing, shrubby. 

 F. Lvs. pinnate. 



G. Fls. yellowish white, in 



panicles 14. nutans 



GO. Fls. reddish purple, 1-8, 



axillary 15. lasiandra 



FF. Lvs. bipinnate; Ifts. small, 

 deeply lobed, usually less 

 than 1 in. long: fls. 



whitish 16. aethusifolia 



BB. Fls. with petaloid staminodes; sepals 

 more or less spreading; stamens 

 upright, appressed pubescent. 

 c. Lvs. always 3-foliolate; Ifts. ovate, 



subcordate 17. verticillaris 



cc. Lvs. partly biternate; Ifts. ovate to 



ovate-lanceolate 18. alpina 



AA. Sepals spreading; stamens more or 



less divergent. 



B. Stamens glabrous or only with a few 

 hairs below the anthers (or hairy 

 at the base only in No. 19). 

 C. Fls. solitary or in S's or in axil- 

 lary fascicles, blue, violet, red or 

 white, usually large. 

 D. Lfts. entire: fls. on the new 

 growth after the Ivs., solitary 

 or in S's. 



