GARDEN FLOWERS. 203 



nual ; 6 inches; flowers yellow, in July; France; 1640. H. 

 p7'ocumbens (lying down) ; hardy annual ; i foot ; flowers yellow, 

 in July ; south of Europe ; 1596. 



Hypericum. St. JoJm's Wort. [Hypericaceae.] A large 

 genus, containing many hardy species, both perennial herbs 

 and shrubs, as well as some greenhouse species. The hardy 

 perennials and shrubs all grow readily in common sandy 

 soil, and are increased, the former by division, the latter by 

 layers. Yellow is almost universally the color of the flow-ers 

 in this genus. 



H. Ascyron (St. Peter's Wort) ; hardy perennial ; 2 feet ; flow- 

 ers yellow, in June ; Siberia ; 1774. H. calycinum (large-calyxed); 

 half-hardy shrub ; i foot ; flowers large, yellow, in June ; Ireland. 

 H. elatuin (tall) ; hardy sub-evergreen shrub ; 5 feet ; flowers 

 yellow, in July ; North America ; 1762. H. empetrifolhun (em- 

 petrum-leaved) ; half-hardy evergreen shrub ; 2 feet ; flowers yel- 

 low, in June ; south of Europe ; 1820. H. Kabnianum (Kalm's) ; 

 hardy deciduous shrub ; 2 feet ; flowers yellow, in June ; North 

 America; 1759. H. macrocaj'pwn (long-seeded); hardy peren- 

 nial ; 2 leet; fiowers yellow, in August; North America; 1828. 

 H. pidchriiin (pretty) ; hardy perennial; 18 inches ; flowers yel- 

 low, in July ; England. 



There are many other species. 



Hyssopus. [Lamiacese.] Hardy perennials, flourishing 

 in garden soil, and increased by division and seeds. 



H. discolor (two-colored) ; hardy perennial ; flowers blue, in 

 June ; Siberia ; 1818. H. officinalis (officinal) ; hardy perennial ; 

 2 feet ; flowers blue, in June ; south of Europe ; 1548. 



There are varieties angustifolia., cafiesce7is, Jlore-riibro, and 

 variegatus ; the two last being garden hybrids. 



