716 



PB ACTIO AL GUIDE TO GABDJEN PLANTS pentstemon 



washed with red and hairy outside ; fila- 

 ments yellow with bluish anthers. 



Culture Sc. as above. Eeqnires to be 

 treated like P. jaffrwyanus. 



P. Menziesi Douglasi. — This plant is 

 probably better known as P. crassifoliMi. 

 It grows about 1 ft. high, and has rather 

 small entire obovate lance-shaped thick 

 leathery leaves. Flowers in June and 

 July, lilao-purple, tinged with pinkish-red 

 at the base, with an inflated throat. The 

 variety Scouleri is a much taller-growing 

 plant about 3 ft. high, with obovate lance- 

 shaped sharply toothed leaves, and purple 

 flowers which are produced in great 

 abundance in May and June. The true 

 P. Menziesi is recorded as having flowered 

 in the Edinburgh Botanic Garden in 1888, 

 but seems to be identical with the variety 

 Douglasi. 



Culture dc. as above. 



P. raurrayanus. — A highly ornamental 

 species 2-3 ft. high or more, having oval 

 lance-shaped, long-stalked glaucous or 

 greyish leaves at the base of the stems, 

 the upper ones being roundish and united 

 at the base. Flowers in July and August, 

 bright scarlet, about 1^ in. long, the 

 sterile stamen being unbearded. There 

 are several varieties, which differ only in 

 the colour of the flowers, the principal 

 shades being rose, lOac, scarlet, crimson, 

 and violet. The strain called grandi- 

 florus has larger and more numerous 

 flowers than the ordinary form. 



Culture dc. as above. They are all 

 best raised from seeds sown in autumn 

 every year, the young plants being win- 

 tered in cold frames. Or by cuttings 

 inserted at the same season in cold frames. 



P. ovatus. — A graceful and somewhat 

 downy species 3-5 ft. high, with more 

 or less ovate-lance-shaped leaves, often 

 sharply toothed, and of a bright shining 

 green, the upper ones rather heart-shaped 

 at the base and stem-clasping. Flowers 

 from June to September, small, in dense 

 clusters varying from deep blue to rosy- 

 purple, and having a bearded sterUe sta- 

 men. 



Culture dc. as above. It is best raised 

 annually in the autumn like P. murraya- 

 nus, as it usually flowers well the following 

 year. 



P. Palmeri. — A vigorous and some- 

 what glaucous species about 18 in. high or 

 more, having narrow lance-shaped sharply 



toothed leaves, the lower ones narrowed 

 into stalks, the upper ones half stem-clasp- 

 ing. Flowers in summer, pale purple, 

 somewhat broadly bell-shaped about the 

 calyx and borne in loose twiggy raceme- 

 like panicles. 



Culture do. as above. Requires the 

 same treatment as P. mti/rrayanus, 

 although a hardier plant. 



P. pubescens (P. hirsutus ; P. mack- 

 ayanus ; Chelone Pentstemon). — A plant 

 about 1-3 ft. high, covered more or less 

 with a, somewhat clammy down, and 

 bearing linear or ovate lance-shaped leaves, 

 the upper ones being reduced to small 

 bracts. Flowers from June to August, 

 bluish-violet, or partly whitish, in loose 

 clusters ; sterile stamen long and densely 

 bearded. 



Culture dc. as above. This species 

 Ukes fairly good and rich soU, and may 

 be increased by seeds sown in autumn, or 

 by division of the clumps in early spring. 

 Cuttings may also be rooted in autumn in 

 cold frames. 



P. puniceus. — A glaucous species about 

 3 ft. high, native of Mexico. Leaves in 

 rosettes of a bluish-green, oval acute, 

 thickish. Flowers in summer, brilliant 

 red or scarlet, somewhat downy outside, 

 and arranged in long clusters. 



Culture and Propagation. — This is 

 best raised from autumn- sown seeds in 

 cold frames annually and planted out the 

 following May in warm sunny spots in 

 fairly rich soil. 



P. Rattani. — A vigorous Californiau 

 species 12-18 in. high, resembling P. Digi- 

 talis in appearance. It has broadly ovate 

 tapering leaves, the lower ones being 

 stalked, the upper ones sessile, stem- 

 clasping, and sparingly toothed. The 

 lilac -purple flowers, each about an inch 

 long, are borne in panicles at the end of 

 the shoots. 



Culture (dc. as above. 

 P. rotundifolius. — A very distinct and 

 graceful Mexican species, closely related 

 to P. centranthifolius, and recognised by 

 its roundish acute leaves about 8 in. long, 

 the lower ones stalked, the iipper connate, 

 and aU distinctly glaucous. Flowers 

 during the summer and autumn months, 

 brick-red, about 1 in. long, tubular, downy 

 outside, yellowish within, and borne in 

 loose clusters on stems about 2 ft. high. 



Culture dc. as above. Increased 

 chiefly by seeds. 



