1 164 



THE BOOK OF GARDENING. 



ON HARDY HERBACEOUS PERENNIALS— contd. 



monspeliacus, large yel. fl. ; ift. ; 

 April and May. 



Rudbeckia 



Autumn Glory, fl. rich yel. with 

 deep bronze central cone ; 5ft. ; Sep- 

 tember and October. Golden Glow, 

 fl. double, bright yel. ; 5ft. laciniata 

 grandiflora, large clear yel. fl.; 5ft. ; 

 August and September. PURPUREA, 

 reddish-purple ; 4ft. ; September. 



Salvia 



GRANDIFLORA, fl. blue ; 2ft. ; July 

 and August, pratensis, bright violet ; 

 2ft. ; June to August. P. ROSEA, 

 fl. rose-coloured; 2ft. Verbenaca, 

 fl. violet; lift, to 2ft.; July and 

 August. 



Scabiosa 



caucasica, lilac-blue ; i£ft. ; June 

 to September, c. alba, pure white 

 fl. Columbaria latifolia, fl. rose- 

 lilac ; 3ft. graminifolia, fl. pale 

 lilac ; 1ft. to I Jft. ; June to September. 

 LUTEA, light yel. ; 3ft. ; July to Sep- 

 tember, ochroleuca, fl. sulphur- 

 yel. ; 2ft. ; July to September. 



Silphium 



laciniatum, fl. yel. ; 3ft. ; July. 

 perfoliatum, large 1. ; bright yel. fl. ; 

 4ft. ; June to September, scaberinum, 

 fl. yel. ; 4ft. ; August to October. TRI- 

 foliatum, fl. bright yel. ; 4ft. ; August 

 and September. 



Thalictrum 



angusti folium, fl. pale yel. ; 3ft. ; 

 June, aquilegifolium album, fl. 

 white ; 4ft. A. purpureum, fl. purple. 

 flavum, fine-cut 1. ; yel. fl. ; 4ft. ; 

 July and August. MINUS affine, fl. 

 pale yel. ; ift. ; June and July. 



Valeriana 



officinalis, fl. pink ; 3ft. ; June. 

 Phu aurea, young 1. bright golden- 

 yel ; white fl. ; 2ft. ; August. 



Veratrum 



album, massive 1. ; white fl. ; 3ft. ; 

 June and July. A. Lobelianum, fl. 

 greenish-white ; 4ft. ; June to August. 

 Maackii, fl. dark purple ; 2ft. 

 nigrum, blackish-purple fl. ; 2ft. to- 

 3ft.; June to August, viride, fl. 

 greenish ; 4ft. ; June to August. 



Acaena 



argentea, fl. brown ; 6in. ; June to 

 August, myriophylla, bright green 

 fern-like 1. ; 6in. pulchella, fl. incon- 

 spicuous; 1. bronze; a creeping species. 



Ajuga 



genevensis, flesh-coloure.d ; gin. ; 

 June to September. G. variegata, 

 beautifully-coloured 1. reptans, blue ; 

 6in. ; May. R. atropurpurea, 1. dark 

 purple; fl. blue. R. variegata, 1. 

 white variegated. 



Androsace 



filiformis, fl. white ; ift. ; May. 

 foliosa, heads of rose-coloured fl.; 

 July. Laggeri, fl. pink ; March. 

 lanuginosa Leichtlini, fl. rose. 



Campanula 



ERINUS, pale blue starry fl. fra- 

 gilis, pale blue ; 9m. ; July and August. 

 isophyxla, trailing habit ; bright 

 blue fl. ; 6in. ; June to September. 



9.— ON ROCK PLANTS 



(p. 287 to p. 302). 



Portenschlagiana, blue ; 4U1. ; May 

 to August, pumila, blue ; 4m. ; July, 

 p. ALBA, pure white ; 4m. 



Cheiranthus 



Allioni, fl. yel. ; 9m. ; May and 

 June, alpinus, heads of fragrant pale 

 yel. fl. ; ift.; May to August. A. 

 Marshalli, fl. orange -yel; 6in. 

 Harpur Crewe (Golden Drop), fl. 

 dbl. yel. ; 9m. MUTABILIS, purple fl., 

 changing to bronze, ift. 



Chrysanthemum 



catananche, fl. heads yel. ; 4m. to 

 6in. caucasicum, small white Daisy- 

 like fl. ; 3m. 



Coronilla 



cappadocica iberica, trailing ; 

 bright yel. Pea-shaped fl. ; deep green 1. 



Crucianella 



stylos A, neat trailing ; pink fl. ; 

 9m. ; July to September, s. Brilliant, 

 fl. rosy-crimson. 



