272 



FLORA AND SYLVA. 



semi-climbing habit, flowering from early 

 summer to late autumn. Its growths are leafy, 

 the long slender stems loaded with tubular 

 scarlet flowers about an inch long. S. California. 

 Being tender, this handsome kindneedsshelter 

 in winter. 



P. cristatus. — A good plant of but a few 

 inches with a tuft of narrow hairy leaves often 

 sticky with gum, and short spikes of reddish- 

 purple flowers about an inch long, and of 

 curious shape from abrupt inflation of the 

 tube. 



P. cyananthus. — A variety of P. glaber. 



P. deustus. — An effective kind for group- 

 ing amongst rocks, being of neat dwarf habit 

 with short stems rising from a woody base. 

 Leaves thick, shining, and variable in shape, 

 mostly dented, and the upper ones stemless. 

 Wide-mouthed flowers of yellowish-white, 

 sometimes tinged with purple, and arranged 

 in a crowded cluster on the spike. July. 

 Western States. 



P. diffusus. — A species abundant near the 

 Columbia River, and one of the best in flower 

 from June until cut by frost. Stems of about 

 2 feet, of spreading habit, the broad leaves 

 deeply toothed ; light rose-purple flowers of 

 less than an inch, uponshort stalks, and carried 

 upon leafy much-branched stems. A showy 

 little plant, early in flower, seeding freely, and 

 well worth cultivation. 



P. Digitalis. — A variety of P. laevigatas. 



P. Douglasi. — A variety of P. Menziesi. 



P. Eatoni. — A plant of recent introduction, 

 and one of the best of the group, growing about 

 2 feet, with flowers of rich crimson-scarlet 

 widening towards the mouth. California. 



P. gentianoides. — A large-flowered Mexi- 

 can species with long shining leaves upon stems 

 of 3 to 4 feet, and spikes of violet flowers in 

 July. Tender in all save the most sheltered 

 positions. 



P. glaber. — A handsome plant, and one of 

 the best for all purposes, with several fine seed- 

 ling forms. Dwarf erect growths, often less 

 than afoot high and slender in habit, with long 

 narrow leaves, smooth and wavy. Profuse in 

 fleshy flowers of an inch or more, wide at the 

 mouth and borne in clusters of six or seven ; 

 colour, bright blue shading to violet or purple. 

 Banks of the Spokan River in N.W. America. 

 Among its many good forms are alpinus, a dwarf 



robust kind with dense clusters of clear azure 

 blue ; cyananthus, a wild form of the Rocky 

 Mountains with taller and greener stems, 

 broader in leaf, with dense clusters of blue ; 

 hybridus, of stouter and more vigorous growth 

 (at times nearly 2 feet) with large heads of 

 blue and rosy-purple; speciosus^ a narrow-leaved 

 form with beautiful bright blue flowers shaded 

 purple ; and splendens, a tall plant with flowers 

 of rich dark blue. Seed should be sown early 

 in spring. Syn. P. speciosus and erianthera. 



P. glandulosus. — A showy plant from the 

 sandy channelsof torrents in the Rocky Moun- 

 tains. Thin toothed leaves upon stout erect 

 stems of 2 to 3 feet ; flower-spikes narrow with 

 large rosy or lilac flowers, wide in the throat 

 and short in the lip. June. Syn. staticifolius. 



P. glaucus. — A pretty dwarf species from 

 the Rocky Mountains, with grey stems and 

 foliage of about 9 inches ; dense clusters of 

 dull lilac or bluish-purple flowers of medium 

 size, with a wide pale throat. A form of this 

 known as stenosepalus has shorter, denser spikes, 

 and a different formation of the sepals. 



P.g/oxinioides. — The race of named garden 

 varieties so widely grown as border plants for 

 autumn effect. 



P. gracilentus. — A shrubby kind of about 

 a foot, with a woody base, long shining leaves, 

 and loose clusters of tiny violet-blue flowers 

 very shortly lobed. 



P. gracilis. — A slender plant of dwarf 

 growth with long funnel-shaped flowers of 

 lavender colour, varying to white; upper leaves 

 long and narrow, base leaves more rounded. 

 August. A neat and pretty plant for the rock 

 garden. 



P. grandijlorus. — A tall grower, making 

 stout stems of about 3 feet with thick, broad 

 leaves of bluish-grey, clasping or surrounding 

 the stem. Brilliant flowers of 2 inches or more 

 of a fine blue or purple, with a wide base and 

 very short stalks. 



P. Hallii. — A low herb from the moun- 

 tains of Colorado, with thick, narrow leaves, 

 and broad, bell-shaped flowers of pale mauve 

 or purple, in short spikes. 



P. Hartwegi. — A very old kind found by 

 Humboldt upon the mountains of Toluco, 

 Mexico, near the snow-line at a height of 

 1 1,000 feet. It is a plant of great vigour and 

 beauty, and for awhile was much grown, but 



