178 THE FLORA OF THE ALPS 



Gremli also records the following lowland species (not 

 British) as occurring in Switzerland : — C. chordorhiza^ 

 Ehrh. ; resembling incurvay but stem much longer, 

 branched; peat-bogs; Jura. C. brizoides^ L. ; resem- 

 bling disticha^ but spikelets yellowish, less numerous; 

 woods. C. cyperoides^ L. ; head subtended by two folia- 

 ceous bracts, which greatly exceed it in length, fruit with 

 a long beak ; dried -up ponds, very rare. C, Heleonastes^ 

 Ehrh.; resembling lagopina, but stem rough, fruit com- 

 pressed ; peat-bogs. C. pilosa^ Scop. ; leaves broad, 

 ciliate, exceeding the almost leafless stem, root-stock 

 stoloniferous ; woods, local. C. nitida, Host. ; bracts 

 sheathing, the upper one ending in a green point, female 

 spikelets dense ; dry slopes. C. alba. Scop. ; female 

 spikelets 1-3, erect, whitish ; woods. C. Hallerianay 

 Asso. ; lowermost female spikelet springing from close to 

 the root, on a very long stalk ; rare ; Neuch^tel, Aargau. 

 C. longifolia^ Host. ; leaves longer than the stem, male 

 spikelet thick, clavate; woods, rare. 



Order CI.— GRAMINE^. 



Stem jointed, usually cylindrical and with hollow inter- 

 nodes ; leaves alternate, narrow ; sheath split, often with 

 a ligule at the point of junction with the blade; flowers 

 usually bisexual; perianth replaced by brown or green 

 scales (glumes and pales); stamens usually 3, with 

 slender filament and versatile anther; ovary i -celled, 

 with I ovule ; stigmas feathery ; fruit a caryopsis, the 

 seed adnate to the pericarp. The Grasses form a vast 

 order, distributed through the entire globe, but there 

 are comparatively few Alpine species. 



