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PULMONARIA PYRETHRUM. 



Lular, in panicled clusters, drooping 

 at first, afterwards erect and elon- 

 gated ; corolla much, longer than the 

 calyx, which is hairy, and has acute 

 sepals. Leaves, soft, smooth under- 

 neath, and covered with rough ad- 

 pressed hairs on the upper side ; root- 

 leaves oval, stalked; stem-leaves 

 linear-lanceolate, acuminate, sessile. 



Siberia. In the rock-garden, in 



sheltered nooks, or in borders or beds 

 among dwarf shrubs, etc., which may 

 prevent its being injured by high 

 winds, in sandy peat and loam. Di- 

 vision. 



Pulmonaria officinalis (Lungwort}. 

 A British plant, much grown in gar- 

 dens under various names. Flowers, 

 in spring; rose changing to blue, in 

 small terminal clusters, on stems 6 to 

 12 in. high. Leaves of root, in distinct 

 tufts, ovate-oblong, on long stalks, 

 about 6 in. long and 2^ in. broad, dark 

 green on the upper side marked with 

 many whitish spots, pale and not spotted 

 beneath; stem-leaves smaller, almost 

 stalk less, alternate. P. august ijolia, 

 with blue flowers and narrow leaves 

 that are rarely spotted, is by some 

 botanists united with this species, and 

 there, is also a white-flowered and a 

 spotless variety in cultivation. Woods 

 in Central and Southern Europe, also 

 found in Hampshire and the Isle of 



Wight in Britain. Borders, beds 



in the spring garden, and allowed to 

 run wild in shrubberies, etc., in ordi- 

 nary soil. Division. 



Puschkinia scilloides (Striped Squill). 

 A beautiful spring-flowering bulb ; 

 3 to 6 in. high, flowers, in spring ; 

 whitish, striped with a delicate blue ; 

 divisions of equal length, lanceolate, 

 rather blunt ; tube short, of a deeper 

 hue than the limb; arranged in a 

 raceme of 4 to 10 blooms. Leaves, 

 small, linear -lanceolate, concave. The 

 Caucasus, especially the eastern parts. 

 The rock-garden, bulb-garden, 



and choice borders, in deep sandy loam 

 and leaf-mould. Separation of the 

 bulbs every second or third year. 



Pyrethrum achilleaefolium (Narrow- 

 leaved P.) A silky species ; 2ft. high. 

 Flowers, in summer ; few, golden yel- 

 low, almost globular, on long stalks, 

 arranged in loose corymbs ; inner 

 scales of involucrum round, white and 

 transparent at the top. Leaves, pin- 

 natifid, with pinnate segments, covered 

 with a white silky down when young, 

 pubescent when full-grown. A variety 

 named pubescens has numerous heads, 

 arranged in broad corymbs. The Cau- 

 casus. Borders, in ordinary soil. 



Not very ornamental in its flowers, 

 but with graceful leaves. Division. 



Pyrethrum carneum (Rosy P.) 

 Pyrethrum roseum. A very orna- 

 mental composite plant, 14 to 2 ft. 

 high. Flowers, in summer; solitary, 

 larger than the Ox-eye Daisy, with a 

 yellow disk, and rays of rose-colour 

 more or less deep. Leaves, twice pin- 

 nate, with decurrent, lanceolate, in- 

 cised segments, of a vivid green. The 

 Caucasus. There are now many 

 double varieties of this plant, many of 



them of great beauty. Borders, 



and beds, in good sandy loam. Divi- 

 sion and seed. 



Pyrethrum lacustre (Marsh P.) 

 Chrysanthemum lacuslre. A hardy 

 herbaceous perennial, 2 to 24 ft. 

 high. Flowers, late in summer ; 2 in. 

 across, pure white with a yellow cen- 

 tre, solitary, terminal and axillary. 

 Leaves, alternate, numerous, sessile, 

 oval-lance-shaped, coarsely and irre- 

 gularly toothed. Portugal. Bor- 

 ders, and naturalization in deep moist 

 soil. Division. 



Pyrethrum Parthenium (Feverfew). 

 A well-known native plant, 1 to 

 2 ft. high. Flowers, in summer ; 4 to 

 f in. across, in a terminal corymb ; 

 florets of the ray white, disk yellow. 

 Leaves, pinnate ; leaflets ovate or ob- 



