286 GARDEN FLOWERS. 



1794; often called Chelone. P. campanulatus (bell-flowered); 

 half-hardy sub-shrubby perennial ; 2 feet ; flowers light rose- 

 purple, in July ; Mexico; 1794. P.centrant/tiyotius(centra.nihus- 

 leaved) ; hardy perennial ; 3 feet ; flowers deep scarlet, in July ; 

 California ; 1 834 ; often called Chelone. P. cobcea (coboea-flow- 

 ered) ; half-hardy perennial ; 18 inches ; flowers white and rose, 

 in August; Texas; 1835. f- crassifolius (thick-leaved); half- 

 hardy sub-shrubby perennial ; i foot ; flowers blue, in June ; 

 North America ; P. cyananthus (blue) ; half-hardy perennial ; 3 

 feet; flowers deep-blue, in July ; Rocky Mountains; 1849. P. 

 diffusus (diffuse) ; hardy perennial ; 2 feet ; flowers light-purple, 

 in July ; North America ; 1826. P. digitalis (foxglove-like) ; 

 hardy perennial ; 2 feet ; flowers whitish, in July ; Arkansas ; 

 1824. P. Gordoni (Gordon's) ; half-hardy perennial ; 2 feet ; 

 flowers light-blue, in June ; Rocky Mountains ; 1845. P.Harl- 

 ivegii (Hartweg's) ; half-hardy sub-shrubby perennial ; 2 feet ; 

 flowers reddish-purple, in July ; Mexico ; 1825. Of this beauti- 

 ful and useful plant, there are numerous garden varieties ; the 

 most distinct are : dibits, creamy white ; coccineus, scarlet ; di- 

 aphanus, rosy ; McEwent, rose ; Salteri, white, bordered with 

 rose ; Verplankii, rose. P. heterophyllum (various-leaved) ; 

 half-hardy sub-shrubby perennial ; flowers rose-color, in July ; 

 California ; 1834. P. miniatus (vermilion) ; half-hardy sub- 

 shrubby perennial ; i foot ; flowers vermilion, in July ; Mexico; 

 1846. P. Murrayanum (Murray's) ; half-hardy perennial ; 3 

 feet ; flowers scarlet, in August ; Texas : 1835. f- ovatus 

 (ovate) ; hardy perennial ; 2^ feet ; flowers deep-blue, in July ; 

 North America ; 1826. P. roseus (rosy) ; half-hardy sub-shrubby 

 perennial; 2 feet; flowers rose, in July; Mexico; 1825. P. 

 speciosus (showy) ; half-hardy perennial ; 3 feet ; flowers light 

 blue, in July ; North America ; 1827. P. Wrightii (Wright's) ; 

 half-hardy perennial ; 2 feet ; flowers rich deep-rose, in June ; 

 Texas; 1851. 



All the other species are worth growing where there is 

 space for them. 



PERILLA. ^Lamiaceae.] Half-hardy annuals, valuable 



