368 DKECIA DIANDRIA. [CL. XXII. 



12. HYDRO'CHARIS. Barren flowers. Calyx with three deep seg- 



ments. Petals three. Inner Filaments with a beak. 

 Fertile flowers. Calyx and corolla the same. Styles six. Capsule 

 inferior, six-celled. Seeds numerous. 



(Empetrum nigrum.) 



Order IX. DEC AND RI A. Ten Stamens. 

 (Silene otites. Lychnis sylvestris and vespertina.) 



Order X. ICOSANDRIA. Numerous Stamens, arising 

 from the Calyx. 



(Rubus Chani&morus.) 



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'PERUS. Barren flowers. Calyx the scale of a catkin. 



Corolla none. Stamens three. 



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

 united into a berry with three seeds. 



14. TA'XUS. 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.) 



D I (E C I A. D I A N D R I A. 



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; some- 

 times double. Filaments generally two, but varying 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, spread- 

 ing. 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. 



