CHRYSANTHEMUM 



B. Fls. home in flat-topped clusters. 

 12. Balsimita, Willd. {Tanacetiim Balsdmita, hinn.). 



CHRYSANTHEMUM 



313 



tuse, margined with blunt or sharp teeth, lower ones 

 petioled, upper ones almost sessile, the largest Ivs. 5-U 

 in. long, lK-2 in. wide. W. Asia. — Typically with short 

 white rays, but when they are absent the plant is var. 

 tanacetoides, Boiss. Costmart. Mint Geranium, fig. 

 464. Also erroneously known as lavender. This has es- 

 caped in a few places from old gardens. 



BB. Fls. home singly on the hranches or stems. 



c. Plants annual : foliage glaucous : rays golden 

 yellow. 



l.S. segStum, Linn. Corn Marigold. Annual, 1-lKft. 

 high : Ivs. sparse, clasping, very variable, incisions 

 coarse or fine, deep or shallow, but usually only coai-sely 

 serrate, with few and distant teeth. June-Aug. Eu., 

 N. Afr., W. Asia. Gn. 18, p. 19r.. R.H. 1895, pp. 448, 

 449.-V;\r. grandiflorum, Hort., is a larcf-r-Hd. form of 

 this weed, which is coramou in the Enirlish Rrain fields. 

 The var. Cloth of Gold, J.H. III. 12:44.',, is prnbably the 

 best. This species is much less popular than P. carina- 

 tum and coronarium. It is also forced to a slight extent 

 for winter bloom. " Segetum" means " of the corn fields." 



14. multicaMe, Desf. Glabrous and glaucous annual, 

 6-12 in. high ; stems numerous, simple or branched, 

 stout, terete : Ivs. fleshy, variable, usually linear- 

 spatulate, 1-3 in. long and ys-^i in. broad, very coarsely 

 toothed or lobed, sometunes shorter, with few narrow- 

 linear, acute, entire segments about I line broad : rays 

 much shorter and rounder than in No. 13. Algeria. 

 B.M. 6930. -Rarer in cult, than No. 13. Said to be use- 

 less as a cut-flower. 



OC. Plants perennial : foVaije not glaucous {except in 

 n-ild f..ni,.< nf X.i.^'O). 



D. Bays always 



15. lacustre, Brot. {C. latifuliu,,:. nr.i. ¥\^. 4(i5. 

 This is endlessly confused with <'. i" / -n m,* m '^-.w- 

 dens, and the two species are very ^ I ; 1. ult 



to distinguish. The fls. cannot be t-ill :; ■ ' W/v 



is a taller and much more vigorous j,l;i,,i, .uni iiii.-- 

 times it is branched at the top, be.irin;^: :j lis., ^v!lile ('. 

 maximum is always 1-fld. Height 3-6 ft. : stem sparsely 

 branched : Ivs. partly clasping, ovate-lanceolate, with 

 coarse, hard teeth: fls. not distinguishable from No. IG: 

 rays about 1 in. long ; pappus of the ray 2-3-earcd. 

 Portugal, along rivers, swamps and lakes. R.H. IS.'iT, 

 p. 456.— According to R. Irwin Lynch, in Gn. 26, p. 441, 

 C. lacustre has coriaceous, oval Ivs, about 3 times as 



long as broad, while in C. maximum the Ivs. are 5 times 

 as long as broad. H. Cannell, Swanley, Eng., says that 

 C. lacustre is 2 ft. high and blooms 3 weeks before C. 

 maximum. With Woolson, Passaic, N. J., it grows 4-5 

 ft. high. The rays in Fig. 405 are rather shorter than 

 usual. 



16. m&ziintun, Ramond. Fig. 466. This species has 

 narrower Ivs. than No. 15, and they are narrowed at the 

 base. Height 1 ft. : stem more angled than the above 

 simple or branched at the very base, always 1-fld. anc 

 leafless for 3-^ in. below the fl. : lower Ivs. petioled 

 wedge-shaped at the base, lanceolate, dentate from the 

 middle to the apes; stem-lvs. sessile, wide- or narrow- 

 ianceolate, typically serrate throughout their whole 

 length, but variable, as in Fig. 46G : pappus none : 

 volucral scales narrower and longer, whitish-trans 

 rent at the margin, while those of C. lacustre are 

 broader, more rounded at the apex, and with a light 

 brown, scarious margin. Pyrenees. — For other pictures 

 of these two species, see J.H. III. 5 :25, and Gn. 26, p. 437. 

 Var. Jilif6rmis,*Hort., "with long, narrow, thread-like 

 petals." Int. 1899. Var. Triumph has "fls. 4 in. across, 

 with broad, overlapping petals." 



17. \Higm(>s\un,PeTS.{P.uUgin&sum,WaUst.). Giant 

 Daisy. Stout, erect bush, 4-5 ft. high, with light green 

 foliage: stem nearly glabrous, striate, branching above, 

 rather deeply serrate, rougbish : fls. 2-3 in. across. 

 Hun-arv. B.M. 2706. A.F. 4: .")2:i and 8: 813. Gng.2:375 

 anda:is3. A.G.19:40:i. IMl. Is'.ll. j.. 82. Gt. 46, p. 103. 

 G. C. II. 10: 493. Gn. 2r,, p. 442 aii.l :;,s. p. 523. -Next to C. 

 coccineuyii. this is the most popubir of the hardy herba- 

 ceous kinds. In A. F. 4:465 Wm. Falconer shows a 2- 

 year-old plant 6 ft. high, 17 ft. in circumference at a 

 point 4 ft. from the ground, and carrying thousands of 

 flowers. It blooms the first year from seed or division, 

 and has been forced for Easter somewhat as Hydrangea 



data can be treated. Excellent for cut-fls. The 



dnuhle : practically 



after opening, as the disks 

 arken with age. The plant needs a rich, moist soil, 

 nd deserves a greater popularity. ".Uliginosum " means 

 iuhabitiug swampy places." 



