GARDEN FLOWERS. 6/ 



in June; Caucasus; 1820. B. Orientalis (Oriental) ; hardy per- 

 ennial ; I foot ; flowers light-purple, in June ; Levant ; 1737. 



This genus is now united to Stachys, which see. 



BETULA. Bctulacece. [Birch.] Hardy trees and shrubs, 

 flourishing in common soil, and propagated by seed. The 

 following are the species : 



B. alba (common white) ; 40 feet ; flowers in April ; Britain. 

 B. alba Dalecarlica (Dalecarlian) ; 46 feet ; flowers in May ; Eu- 

 rope. B. alba foliis-variegatis (variegated -leaved) ; flowers in 

 May. B. alba macrocarpa (large-fruited) ; 40 feet ; flowers in 

 June ; Europe. B. alba, pendula (pendulous) ; flowers in April ; 

 Britain. B. alba Pontica (Pontic) ; 70 feet ; flowers in May ; 

 Turkey. B. alba urticifolia (nettle-leaved) ; 40 feet ; flowers in 

 May. B, alba -verrucosa (warty) ; 40 feet ; flowers in April ; 

 Britain. B. Bhojpattra (Bhojpattra) ; 50 feet ; flowers in May ; 

 Himalayas; 1840. B. carpinifolia (horn-beam-leaved); half- 

 hardy; 50 feet; flowers in July; North America; 1759. 

 B. Daurica (Daurian) ; 30 feet ; flowers in July ; Siberia ; 

 1785. B. Daurica parvifolia (small-leaved); flowers in July; 

 Siberia. B. excelsa (tall) ; 60 feet ; flowers in July ; North 

 America; 1767. B. fruticosa (shrubby); 6 feet; flowers in 

 June ; Siberia ; 1 8 1 8. B. glandulosa (glanded) ; flowers in May ; 

 North America; 1816. B. grandis (great); North America; 

 1834. B. lanulosa (woolly); 70 feet; flowers in July; North 

 America; 1817. B. lenta (pliant); 50 feet; flowers in July; 

 North America; 1759. B. lutea (yellow); 20 feet; flowers in 

 May; North America. B. mollis (soft); East Indies; 1840. 

 B. nana (smooth-dwarf) ; 4 feet ; flowers in May ; North Amer- 

 ica. B. nana macrophylla (large-leaved) ; 6 feet ; flowers in 

 May ; Switzerland ; 1819. B. stricta (upright) : flowers in May. 

 B. nigra (black) ; 60 feet ; flowers in July ; North America ; 

 1736. B. ovata (egg-leaved); 6 feet; flowers in May; Hun- 

 gary; 1820. B.pallescens (palish); 6 feet. B. papyracea (pa- 

 per) ; 50 feet ; flowers in June ; North America ; 1 750. B. 

 Papyracea fusca (blackish-brown) ; flowers in May ; Carolina. 

 B. papyracea platyphylla (broad-leaved) ; 50 feet ; flowers in 



