The Flora of the Cayuga Lake Basin 63 



4. F. rubra L. Red Fescue. 



Roadsides, in sandy or gravelly soils; scarce. June. 



Parkway, Cayuga Heights, near both ends of the street, where il was probably 

 introduced with grass seed; Taughannock Point; Sheldrake; and probably elsewhere. 



Widespread as an escape in the Eastern States, but native farther north. Intro- 

 duced from Eu. 



The strain that occurs here, as also that in the fields of eastern Mass., resembles 

 very much the form of /•'. ovina common in these two localities, but differs plainly 

 in the characters given. The stoloniferous feature of /■'. rubra, emphasized by most 

 authors, is usually not apparent except in lawns ; elsewhere the plants are distinctly 

 tufted, though less densely so than in F. ovina. 



5. F. elatior L. Meadow Fescue. 



Yards, roadsides, and fields, in rich soils ; common. June. 



General throughout most of N. A. Introduced from Eu. as a fodder grass. 



6. F. nutans Spreng. 



Rather dry, often rocky, woodlands, usually in rich humus but often in rich 

 gravelly soils or in alluvium, the lime preference not understood ; common, and gen- 

 erally distributed. May 20-June. 



N. S. to Minn., southw. to Fla. and Tex., but infrequent on the Coastal Plain. 



4. Glyceria R. Br. 



a. Spikelets 2-7 mm. long, ovate or oblong. 



b. Panicle contracted, linear, 1.5-3 dm. long; spikelets 1.5-2 mm. wide. 



1. G. melicaria 

 b. Panicle open, lax. 



c. Spikelets 3-4 mm. wide ; nerves of the flowering glumes rather inconspicuous. 



2. G. canadensis 

 c. Spikelets 2.5 mm. wide or less ; flowering glumes strongly nerved. 



d. Second empty glume 1 mm. long ; spikelets short, 3-4 mm. long. 



e. Flowering glumes 1.2-1.9 mm. long; panicle 15-25 cm. long; spikelets 



green or purple. 3. G. nervata 



e. Flowering glumes 2-2.3 mm. long ; panicle 8-14 cm. long ; spikelets 

 purple. 3a. G. n., var. stricta 



d. Second empty glume 2-2.5 mm. long ; spikelets 4-7 mm. long. 



e. Panicle 15-40 cm. long, diffuse, usually purple; leaves 6-15 mm. wide; 



culms 10-20 dm. high, erect. 4. G. grandis 



c. Panicle 5-12 cm. long, sparingly branched, pale; leaves 2-8 mm. wide; 

 culms 3-10 dm. long, decumbent at base, often floating. 

 /. Larger leaves 4-8 mm. wide ; sheaths loose ; panicle branches ascending ; 

 anthers cylindrical, 0.6-1 mm. long; grain 1.5 mm. long. 



5. G. pallida 



f. Larger leaves 2-3 mm. wide ; sheaths close ; panicle branches divergent 

 or reflexed ; anthers globose, 0.2-0.5 mm. long ; grain 0.8 mm. long. 



6. G. Fenialdii 

 a. Spikelets 10-40 mm. long, narrowly cylindrical. 



b. Flowering glume obtuse, equaled by the palet. 



c. Spikelets 1.5-2 cm. long, subsessile ; flowering glume hispidulous all over. 



7. G. septentrionalis 

 c. Spikelets 1-1.5 cm. long, pedicelled; flowering glume hispidulous only on the 



nerves. 8. G. borealis 



b. Flowering glume acute, much exceeded by the palet. 9. G. acutiflora 



