PHYTEUMA 



boil in either border or rockery. A very critical review 

 of Phvteumas from the garden standpoint is given 

 by "D". K." in Gn. 28, pp. 91, 92 (1885), from which 

 the following points are abstracted. The smallest 

 species, as P. Immile and piiiirHlnnnii. sliuuld be 

 planted by themselvi^s cir h itli ..thrr \ , i , .1 ", :ii i" .iIpiiH-s, 

 so that they will n^t l.r ^m-ilMn-.l i. .". - , .' . • ..i-^i-r 

 sub.iects. The tull. ~t. in<i~t m.i .i-i : ^ . ins 



is A oa»ipo)U(A)i./. N, lart-r ilutiii - . : :; ft. 



in diam. and grow 2 ft. high, .sih h ■ i is a 



finecenterpiecefor a flower-bed and i: i I July 



andAug. Similar to it but inferior i /' .»., 



with lighter blue fls. Both have ..11 ■ i - .s, 



as also do P. Halleri and P. syn. ;,,,„. ih. limner 

 growing a foot high in dry, sunny sputs in a .south- 

 ern border, the latter attaining 1^2 ft, on sunny rock- 

 work. 



At the other extreme as regards habit, ease of culture 

 and style of inflorescence, is P. comosum, which in 

 rockeries requires renewal every few years. A stock 

 should therefore be constantly kept in pots. 



PHYTEUMA 



1329 



B. Fruiting spikea little elon- 

 gated', merely oml. 



c. No. of fls. about 5 in. pauclflorum 



cf. No. of fls. about l:i 11. globulariafolium 



D. f'ppir Irs. eiilirc !2. hemisphaericum 



m.. I'rr. ,- hs. ,-. „n,irhj 



■ 13. humile 



DDL. ' . , , .,/, u. Sieberi 



cce. N". ■■■ ■ ■ : '■ -•/■.■. 



D. Iji-'U i.i <(■(//( uii. oimte 



base 1.5. orbiculare 



DD. Bracts linear. 



E. Height K ft IB. Charmelii 



EE. Heiqht 1 ft 17. Scheuchzeri 



winter the crown 



: partial 



rockery it likes a shady position and 

 should be covered with coarse sand 

 the time growth starts until flowerit 

 as a pot-plant it is more easily niai! 

 well mixed with pieces of sandstoi 

 marbles and wedge the roots tight 1\ 

 stone; plunge the pots in cool mater 

 shade. 



Of the other round-clustered types the following are 

 very much alike: P. orbiculare, Scheuchzeri, Charmelii 

 and Michelii. P. hemispharicum thrives best in dry, 

 stony places, particularly in the cracks of a crumbling 

 brick wall, or on a steep slope with a southern exposure. 

 It grows 1-R in. high. 



The h. 

 from in 

 III. 'i-.w: 

 G. Don, 



Section 1 

 of the ,-. 

 situate 1 1 ] 

 2 or 3 HI 

 belong SI 



Austriacum. In. 

 betonieaet'olium, 

 Campanula, 1. 

 Ciimpanuloides, 



Halleri. 7. 

 hemisphjericum , 

 humile, la. 

 limouit'olium, 8. 



In florescence < 



D. Stigmas 2. 



E. Root-lvs. long- 

 stalked ;i. scorzoneriSolium 



EE. Boot-lvs. short- 

 Stalked 1. Michelii 



DD Stigmas S 5. betonicaefoUum 



CC. Flowering spikes oblong 

 or nearly so. 

 D. Spikes dense. 



E. Color of fls. whitish 



greenish at tip G. spicatum 



EE. Color of fls. dark 

 violet, rarely 



white 7. Halleri 



DD. Spikes loose 



E. Fls.n,jhlhl„.-: st.n, 



bni nrh, ,1 .s. limouifolium 



EE. Fls. .'nrl.- rinl.t: 



strin nni lirinirlieii. ii. campanuloides 



other types of inflorescence in Phyteuma (X K). 



ipikeJ r. limonifoUum and the denser P. > 

 folium. 



1 ! .iiily species in the 

 - ■ I: ' , and in which the 

 il.i apex. A decumbent, 

 alive to the Alps: fls. pale 

 i .ve. B.M. C478. G.C. II. 

 in Gn. 28, p. 91; 44, p. 554, 

 II. 26:81. copied in I.H. 



.•!. scorzonerifolium, Vill. Fig. 1792. This and P. 

 belnninrfolium should probably be regarded as botani- 

 cal varieties of P. Michelii. but for clearness and for 



