LINAGES 57 



valves containing lo oily seeds. The species of Flax are 

 mostly lowland plants. 



A. Flowers small, white; leaves opposite: — L. cathar- 

 ticum, L. ; dry banks, very common. 



B. Flowers large, bright blue : — L. viscosum^ L. ; 

 stigmas club-shaped, sepals glandular-ciliate, leaves pu- 

 bescent ; Tirol, Carinthia, Eastern Pyrenees. L. narbo- 

 nense^ L. ; stigmas filiform, sepals lanceolate-acuminate, 

 flowers very large (i in. diam.); Tirol, Styria, Carniola, 

 Pyrenees. L. alpinumy L. (PI. 22); stigmas capitate; 

 outer sepals lanceolate-acuminate, inner ovate, obtuse, 

 stems several, wiry, prostrate or ascending; alpine pas- 

 tures, local ; Jura, Dauphiny, Pyrenees. L. austriacum, 

 resembling the last, but with deflexed flower-stalks; 

 Eastern Pyrenees. L. perenne^ L. ; sepals ovate, with 

 membranous border, stems 1-2 ; Carniola, Pyrenees. 



C. Flowers lilac or pale pink : — L. tenuifolimrij L. ; 

 flowers pale lilac, stigmas capitate, sepals glandular- 

 ciliate, sepals elliptical, subulate ; local ; Switzerland, 

 Pyrenees. L. suffruticosuin, L. ; flowers pale pink, 

 stigmas capitate, stem tortuous, woody, pubescent; 

 Pyrenees. 



D. Flowers yellow : — Z. flavum, L. ; Eastern Pyre- 

 nees, Lombardy. 



2. Radiola, Gml. 



Flowers very small, in corymbose cymes; sepals, 

 petals, and stamens 4 each ; ovary 4-celled ; styles 4 ; 

 leaves opposite. Not alpine. 



R. Ihioides^ Gmel. {Millegranay Sm.), a very incon- 

 spicuous plant with minute white flowers; wet sandy 

 places, occasional. 



