368 DICECIA DIANDEIA. [cL. XXII. 



12. HYDEO'CHARIS. Barren flowers. Calyx with three deep 



segments. Petals three. Inner Filaments with a beak. 

 Fertile flowers. Calyx and corolla the same. Styles six. Cap- 

 sule inferior, six- celled. Seeds numerous. 



(Empetrum nigrum.} 



Order IX. DECANDKIA. Ten Stamens. 

 (Silene otites. Lychnis sylvestris and vespertina.) 



Order X. ICOSANDRIA. Numerous Stamens, arising 

 from the Calyx. 



(Rubus Chamoemorus.*) 



Order XI. POLYANDRIA. Numerous Stamens, arising 

 from the Receptacle. 



(Stratiotes aloides. Populus alba, tremula and nigra.) 



Order XII. MONADELPHIA. Filaments united into 

 one set. 



13. JUNI'PEKUS. Barren flowers. Calyx the scale of a catkin. 



Corolla none. Stamens three. 



Fertile flowers. Calyx the scales of a catkin, few, finally pulpy 

 and united into a berry with three seeds. 



14. TA'XTJS. Barren flowers. Calyx none. Corolla none. Style 



one. Anthers peltate, with several lobes. 

 Fertile flowers. Calyx cup-shaped, entire. Corolla none. Style 

 one. Seed one, enclosed in the enlarged, pulpy calyx. 



(Salix rubra and Croweana.) 



DICECIA. DIANDRIA. 



1. SA'LIX.* WILLOW. 



Barren Flowers. Catkin oblong, imbricated all round. 

 Calyx an oblong, spreading, one-flowered scale. Corolla none. 

 Nectary a small, oblong, compressed gland, at the base of the 

 scale ; sometimes double. Filaments generally two, but vary- 

 ing from one to five or more, thread-shaped, longer than the 

 calyx ; anthers two-lobed, two or four-celled. 



Fertile Flowers. Catkin oblong, imbricated all round. Calyx 

 an oblong scale. Corolla none. Germen superior, egg-shaped. 

 Style terminal, permanent; stigmas two, notched or cleft, 

 spreading. Capsule egg-shaped, obtuse, or tapering, one- 

 celled, two-valved. Seeds numerous, minute, oval, tufted with 

 soft erect hairs. Name, Celtic, from sal, near, and Us, water. 



445. 



* In this very difficult and extensive genus, the arrangement 

 and characters of Smith have been exclusively adopted. 



