ENAMENTAL TREES, SHRUBS, ETC. 



19 



POLYGONUM. 



P, c u s p i d a t u in. Giant Knotweed. 

 Flowers while, in clusters late in summer, fol- 

 lowed by handsome pale rosy fruit; three and 

 one-half to eight feet, 



POTENTILLA. Cinquefoil. 



P. insig'iiis. Pale yellowish; eighteen 

 inches. June. 



P. O'Briana. Blush and salmon; fine; 

 two feet. July and August. 



P. pyrenaica. Yellow; dwarf. May. 



P. Kusselliana. Deep red, shaded with 

 maroon; two feet. July and August. 



POLEMONIUM C^RULEUM. 



PRIMUL.A. Primrose. 



,P. acaulis. Common European Primrose. A fine collection. 



P. auricvila. All colors, mixed. 



P. cortusoides. A pretty litte plant, six to nine inches high, with lilac 

 flowers. 



P. elatior. Ox-lip Primrose. 



P. veris. Cowslip. Flowers bright yellow in terminal umbels, in spring 

 and early summer. 



PULMONAKIA. Lungwort. 



P. ang-ustifolia. Fine violet flowers; one foot. 

 April. 



P. maculata. Distinct, blotched foliage; very 

 fine border plant. 



PYKETHRUM. 



A most valuable class of hardy plants. Flowers of g-ood 

 size and form, double like an aster; very useful for bouquets 

 or cut flowers. The plants make showy specimens in the 

 garden. Flower May or June. 



P. Beaute de Laken. Dark velvety scarlet. 



P. delicatissiina. Delicate blush. 

 PRIMULA AURICULA. p^ fulgcns plcnissima. 



P. Gustave Hietz. Dull brick. 

 P. Herman Stenger. Rosy blush. 

 P. J. N. Tiordy. Amaranth, shaded yellow, 

 P. Iveryannm. Rosy carmine. 

 P. Madame Billiard. Pale rose. 

 P. Madame M. Lowitz. Rose. 

 P. Michael Buckner. Rosy crimson. 

 P. Mr. Pell. Dark crimson. 

 P. Rose Pompone. Fine rose. 

 P. Wilhelm Kempler. Purplish rose. 



