MANUAL OF THE GRASSES OF THE UNITED STATES 



95 



mm long on very short thick pedicels; first glume about one-third, 

 the second half as long as the spikelets; lower lemma 5 mm long. 



Figure loi.—Sclerochloa dura. Plant, X 1; spikelet and floret, X 10. (Type.) 



G — Dry sandy or gravelly soil, Washington, Idaho, Colorado, 

 and Utah (fig. 155); introduced from southern Europe. 



8. FLUMINEA Fries 



(Scolochloa Link) 



Spikelets 3- or 4-flowered, the rachilla disarticulating above the 

 glumes and between the florets; glumes nearly equal, somewhat 



scarious and lacerate at summit, the first 

 3-nerved, the second 5-nerved, about as long 

 as the first lemma; lemmas firm, roimded on 

 the back, villous on the callus, 7-nerved, the 

 nerves rather faint, unequal, extending into 

 a scarious lacerate apex; palea narrow, flat, 

 about as long as the lemma. Tall perennials, 

 with succulent rhizomes, flat blades, and 

 spreading panicles. Type species, Fluminea 

 festucacea. Name from Latin flumen, a river, the grass commonly 

 growing along river margins. 



The single species has some value for forage and is often a con- 

 stituent of marsh hay. 



1. Fluminea festucacea (Willd.) Hitchc. (Fig. 156.) Culms erect, 

 stout, 1 to 1.5 m tall, from extensively creeping, succulent 

 rhizomes; blades elongate, scabrous on the upper surface, mostly 5 to 



Figure 155.— Distribution of 

 Sclerochloa dura. 



55974°— 35 7 



