CAMPANULA 



CAMPANULA 



229 



hairs, 1%-S in. long, 1-2 in. wide, with a cordate, ovate- 

 oblong blade shorter than the petiole ; upper ones ses- 

 sile, ovate, acute : fls. in dense heads or glomes, 15-20 

 in the terminal heads, fewer in the axillary ones. Eu., 

 Armenia, Persia, Siberia. 

 B.M. 2649 is var. speciosa, 

 which has the largest Us. 

 L.B.C. 6:505 is var. sparsi- 

 flora, with much smaller 

 clusters. This is one of the 

 earliest flowering and easi- 

 est of cultivation. Pis. typi- 

 cally dark purple, with no 

 recorded white varieties. 

 Var. Dahurica, Hort., is 

 probably the commonest 

 form. Terminal clusters 3 

 in. or more thick ; a very 

 characteristic inflorescence. 

 The fl. has a longer tube 

 than C. lactiflora and thyr- 

 soides. 



DD. Inflorescence a spike 

 or raceme, dense or loose. 



E. Color of fls. normally 

 ivhite or yellowish. 



F. Corolla small, short- 



tubed. 



11. lactifldra.Bieb. Height 

 2K-5 ft. : stem erect, branch- 

 ing : Ivs. sessile, ovate-lan- 

 ceolate, acutely serrate : 

 calyx lobes very broad, 

 acute, serrulate, one-half 

 shorter than the broadly 

 bell-shaped corolla: fls. in a 

 loose or dense panicle, which 

 may be 3% in. long and 

 thick ; corolla white or pale 

 blue, 1 in. long, nearly 1% 

 in. broad : capsule ovoid, 

 erect. Caucasus, Siberia. 

 B.M. 1973. -Not advertised 

 in Amer. at present. C. 

 celtidifolia, Boiss., referred to the above, may be a 

 strongly marked variety. A plant once cult, at Harvard 

 Botanic Gardens has very characteristic, perfectly el- 

 liptical Ivs., blue fls., and more open inflorescence. 



12. thyrsoides, Linn. Biennial : height 1-1% ft. : 

 stem grooved : Ivs. all covered with long hairs at the 

 margin ; root-lvs. sessile, spatulate or obtusely lanceo- 

 late, 2% in. long, % in. wide, in a dense rosette, lying on 

 the ground ; upper Ivs. more narrow and acute : fls. 

 40-50, sulfur or creamy yellow, in a dense thyrse-like 

 spike, which may be 6 in. long and 2% in. broad : style 

 exserted. B.M. 1290. L.B.C. 17: 1644. -Intermingled 

 with the fls. in the spike are Ivs. which are longer than 

 the fls., which is not true of C. lactiflora. Should not 

 be confounded with C. thyrsoidea, Lapeyr., which = 

 C. speciosa. No blue or purple forms are known. The 

 picture in B.M. shows a characteristic red-tipped calyx. 



FF. Corolla large, long-tubed. 



13. Vidalli, H.C.Wats. Perennial: height 1-2 ft.: 

 stem branching from the base : some branches short, 

 sterile, others tall, floriferous, all grooved, clammy, 

 glossy : Ivs. 3-4 in. long, oblong-spatulate, coarsely ser- 

 rate, thick, fleshy, firm, viscid, the upper ones gradually 

 becoming bracts : fls. 2 in. long, nodding, about 9 in a 

 loose terminal raceme ; calyx lobes triangular, thick, one- 

 fourth shorter than the corolla ; corolla tubular, swelled 

 below, constricted above, with a yellow base. Azores. 

 B.M. 4748. F.S. 7:729. A.F1. 3: 116. Gn. 54, p. 299. 

 G.C. III. 18: 95.- Very distinct. 



EE. Color of fls. normally blue or purple, with white 



varieties. 



P. Size of fls. large. 

 G. Raceme pyramidal, usually dense. 



14. pyramidalis, Linn. CHIMNEY CAMPANULA. Figs. 

 335, 336. Glabrous : Ivs. glandular-dentate, lower petio- 



334. Campanula persicifolia. 

 (There are forms with more 

 broadly bell-shaped flowers.) 



late, ovate-oblong, subcordate ; stem-lvs. sessile, ovate- 

 lanceolate : calyx lobes acuminate, spreading, half as 

 long as the broadly bell-shaped corolla : fls. numerous, 

 in pyramidal racemes. Austria, near Adriatic. Gn. 45, 

 p. 67 ; 48, p. 306 ; 51, p. 221 (a staked pot plant). R.H. 

 1897, p. 238. Gn. 53, p. 535 (with extensive cultural 

 notes). 



Var. compacta, Hort. S.M. 2:97. Gn. 47, p. 86 (with 

 very full cultural notes). The tallest of Campanulas 

 and one of the oldest. Much grown in pots for exhibi- 

 tion. The compact variety is very floriferous and con- 

 venient for conservatory, but lacks the characteristic 

 tall, pyramidal habit. 



GG. Raceme not pyramidal, usually looser. 



15. latifdlia, Linn. Height 3-4 ft. : Ivs. large, doubly 

 serrate ; root-lvs. sometimes 6 in. long, petiolate, cor- 

 date, covered with soft hairs ; stem-lvs. sessile, more 

 acuminate : peduncle 1-fld. : calyx lobes long-acuminate, 

 one-third shorter than the corolla : fls. 6-15 in a loose 

 spike or raceme about 8 in. long, erect, very large, 2% 

 in. long, purple or dark blue, hairy. Eu., Persia. Var. 

 macrantha, Sims (C. macrdntha, Fischer), is commoner 

 in cult, than the type, a little hairier, with a glabrous 

 calyx and very large fls. B.M. 2553 and 3347. R.H. 

 1897, p. 239. Var. eriocarpa, DC., has the stem and Ivs. 

 pilose and more pallid, and a hispid calyx tube. There 

 is a white-fld. form. It is native to England, and is 

 easily naturalized in their wild gardens. The stem-lvs. 

 are probably the largest of any of the garden kinds, 

 often 3% in. long and 2 in. wide. 



FF. Size of fls. small,' less than 1 in. long. 



16. Bononi6nsis, Linn. Height 2-2% ft.: scabrous: 

 stem simple : Ivs. serrulate, ovate -acuminate, pallid be- 

 neath ; root-lvs. cordate-petiolate ; upper Ivs. clasping: 

 calyx lobes acuminate, one-fourth shorter than the fun- 

 nel-shaped corolla: 

 fls. normally pur- 

 plish, in a long, 

 loose, pyramidal 

 spike, which may 

 be 2 ft. long, with 



^ 60-100 small fls.; 

 *ra corolla %in. long 

 ** * and broad. E.Eu., 

 W. Siberia, and 

 Caucasus. Var. 

 Ruth6nica (C. Ru- 

 thtnica, Bieb.) has 

 Ivs. wider and to- 

 mentose beneath. 

 Caucasus and Tau- 

 ria. B. M. 2653. 

 There is a white- 

 fld. form. The fls. 

 are much smaller 

 than in C. latifolia, 

 and the raceme is 

 much larger. 



335. Pot plant of Campanula 

 pyramidalis. 



336. Nearer view of flow- 

 ers Campanula pyramidalis. 



17. rhomboidalis, Linn. Height 1 ft., sometimes 2 : 

 stem simple, erect : Ive. sessile, ovate-acute, serrate : 

 calyx lobes awl-shaped, one-half shorter than the bell- 

 shaped corolla : fls. 8-10 in an almost corymbose ra- 

 ceme, the lower pedicel? of which may be 3 in. long, the 



