HOW TO KNOW THE GRASSES 



50a. Lemmas irregularly toothed and cut at the apex; plants of wet 

 ground or water. Fig. 84. 



SchoiocWoa fesiucacea (Willd.) Link 



Perennial; spreading by thick, elong- 

 ated rhizomes; plants 1 — 1,5 m. tall; 

 panicles open, 15 — 20 cm. long; leaf 

 blades usually 5 — 10 mm. wide. This 

 species is a plant of marshes and stream 

 borders, where it often forms large col- 

 onies along with sedges, rushes, and 

 other kinds of aquatic grasses. Late 

 Jime and early July. Furnishes some 

 forage and marsh hay. Also known as 

 Fluminea festucacea. 



Figure 84 



50b. Lemmas owned between 2 teeth; plants of rocky woods. Fig. 85. 



Schizachne purpurascens (Torr.) Swallen 



Perennial; tufted; 50 — 100 cm. tall; 

 sheaths with united edges; leaf blades 

 narrowed at the base, 1 — 5 mm. wide; 

 panicles about 10 cm. long, drooping. 

 The glumes of the spikelets are usually 

 purple. This is a rather delicate grass 

 of rocky woodlands. It grows in scat- 

 tered clumps and is seldom numerous. 

 May — July. Also found in Japan and 

 Siberia. 



Figure 85 



51a. Upper florets of the spikelets sterile, often wrapped around each 

 other and forming a club- or bell-shaped structure; (CARE!) sheaths 

 with united edges; disarticulation above or below the glumes . . 52 



46 



