178 THE FLORA OF THE ALPS 



Gremli also records the following lowland species (not 

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

 Ehrh. ; resembling incurva, 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. Halleriana, 

 Asso. ; lowermost female spikelet springing from close to 

 the root, on a very long stalk ; rare ; NeuchlLtel, Aargau. 

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

 spikelet thick, clavate ; woods, rare. 



Order CI.— GRAMINEiE. 



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. 



