160 THE FLORA OF THE ALPS 



J. castaneus, Sm.; cymes 13, flowers chestnut-coloured, 

 leaves flat ; moist, rare ; Grisons, Tirol, Carinthia, Styria, 

 Salzburg. J. supinus, Moench. ; stem 2-IO in. ; often de- 

 cumbent, flowers often replaced by tufts of leaves, stamens 

 3 ; wet places, frequent. J. sylvaticus, Rchb. ; stem 

 erect, perianth-segments acuminate, capsule acuminate- 

 mucronate; wet places; Switzerland, Jura, rare. J. 

 Gerardi } Lois; flowers distinct, capsule strongly mu- 

 cronate ; salt marshes. J. bufonius, L., Toad- Rush ; 

 flowers solitary or in bunches of 2-3, green, perianth-seg- 

 ments very unequal, acuminate, stamens often 3, whole 

 plant very pale green ; wet places, common. J. Tenageia, 

 Ehrh. ; similar, but perianth brown, capsule nearly globu- 

 lar ; rare ; Bale, Jura, Ticino, Styria, Pyrenees. 



2. LUZULA, DC. 



Ovary I -celled, with 3 erect ovules; stamens 6; leaves 

 narrow, grass-like, not cylindrical, always more or less 

 ciliate with long white hairs. 



L. campestris, Willd., is a very common plant on dry 

 banks; and L. maxima, DC. (sylvatica, Gaud.), Wood- 

 Rush, a tall plant with very compound cymes ; in woods ; 

 also L. vernalis, DC. (pilosa, Willd.), and L. Forsteri, 

 DC. ; more slender plants in woods, not so common. The 

 following are alpine or sub-alpine : 



A. Flowers solitary, distant, stalked: L. flavescens, 

 Gaud. ; flowers yellowish ; mountain woods, frequent. 



B. Flowers in clusters, forming a connected spicate 

 cyme: L. albida, DC. (including angustifolia, Garck., 

 and nemorosa. Poll.); flowers large, white or copper- 

 coloured, cyme lax; woods, frequent. L. nivea., DC. 



