PENTSTEMON, 



273 



has given place to seedling forms in which its 

 influence is very marked. Its purple stems, 

 freely branched, exceed 3 feet, with long shin- 

 ing leaves of bright green and drooping flowers 

 of scarlet or deep purplish-crimson. Has been 

 much modified by cultivation. 



P. heterophyllus. — A lovely little sub-shrub 

 amongst the best of dwarf kinds, with neat 

 growths of 12 to 15 inches, narrow leaves of 

 grey-green, and slender branching stems of 

 clear, bright blue flowers, with a rosy flush 

 deepening to purple, and often much varied 

 upon the same plant. July. Thrives best in 

 warm sheltered spots and light soil. Cuttings 

 root freely. California. 



P. humilis. — A dwarf plant of 6 to 8 inches, 

 from open slopes of the Rocky Mountains, and 

 as a result very hardy in bleak exposures. It 

 is akin to P. gracilis, but with flowers of a 

 deeper blue and denser in the spike. They are 

 smalland narrow, ranging from deep purplish- 

 blue to nearly white, and freely produced. A 

 gem for the rock garden. 



P. y affray anus.- — A variety of P. azureus. 



P. labrosus. — From the hills of Southern 

 California, with long narrow leaves upon tall 

 purplish stems of 3 to 4 feet, and long loose 

 spikes of narrow, tubular flowers, bright scar- 

 let, and held nearly erect upon first opening. 



P. Icetus. — A shrubby Californian species 

 with grey down-covered growths a foot high, 

 and blue flowers of about an inch during July 

 and August. A pretty kind, but rare in gar- 

 dens and somewhat tender. 



P. Iczvigatus. — A tall plant with leafy stems 

 and long slender flowers, white or tinged with 

 purple, widening from a narrow base. It is a 

 common plant in the western States, its best 

 form being the Foxglove Pentstemon (lavi- 

 gatus Digitalis) growing 4 or 5 feet with larger 

 and more inflated white flowers. 



P. Lemmoni. — A tall slender shrub from 

 California, with shining bright green leaves 

 andloose spikesof small yellowish-red flowers. 



P. Lewisii. — An old name for P. Men- 

 ziesii. 



P. Menziesii. — An old shrubby kind found 

 by Douglas in the Rocky Mountains early in 

 the last century, and introduced in several 

 forms with different names. It is a good rock- 

 plant for a warm sunny corner in dry sandy 

 soil, with a free spreading habit, but tender 



in our moist winters. Stems of less than 12 

 inches, with pretty rose-purple flowers of bril- 

 liant tone. Increased by cuttings in sandy soil. 

 Its several forms are: — Douglasi, with small 

 thick leaves and lilac or rosy-purple flowers; 

 Newberryi, forming a graceful bush with pink 

 or rosy-purple flowers (syn. P. Robinsoni) ; and 

 Scouleri, a taller and earlier flowering form, of 

 trailing habit, rooting at the joints, and less 

 tender than other forms, its flowers of bluish- 

 lilac or violet-purple. Oregon. 



P. Murray anus. — A very handsome and 

 distinct plant with flowers of deep scarlet about 

 1 \ inches long, upon long slender stems of 2 to 

 3 feet. The lower leaves of smooth grey-green 

 clasp the stem ; the higher ones grow together 

 at the base into cup-shaped form as they ascend 

 the stem. Texas. Best grown as a tender bi- 

 ennial, though perennial in its wild state. A 

 fine race of seedlings has been raised from this 

 plant by Messrs. Vilmorin under the name of 

 Murrayanus grandijlorus ; their flowers are 

 larger, richly varied as to colour, with a long 

 season of beauty. 



P. Newberryi. — A variety of P. Menziesii. 



P. ovatus. — A rare and pretty mountain 

 plant from the limestone summits of Idaho, 

 with slender erect stems of 3 feet, bearing bright 

 green leaves and loose spikes of blue flowers 

 changing to rosy-purple. It is best grown from 

 seed at frequent intervals, old plants becoming 

 exhausted. 



P. Palmeri. — A handsome plant, though 

 of slow growth and somewhat tender. Stems 

 of 2 to 3 feet with thick grey leaves growing 

 together around the stem, and pale flowers 

 flushed with pink or purple and very wide at 

 the mouth. Utah. Best reared in pots and only 

 planted out to flower in its second season. 



P. pubescens. — The wild kind of eastern 

 America, common as a loose-growing slender 

 herb of 2 feet,with toothed and sticky leaves and 

 loose clusters of deep purple or flesh-coloured 

 flowers, enlarged at the mouth, but closing like 

 the flowers of a Snapdragon. From Ontario, 

 south and west. Syn. P. Mackayanus. 



P.puniceus. — A beautiful and showy plant, 

 flowering freely in the dull time between sum- 

 mer and autumn. Stout erect stems of 1 to 

 6 feet, with stemless leaves of grey-green, blunt 

 and fleshy, and funnel-shaped flowers of glow- 

 ing crimson in clusters of three and four, their 



