240 



GRAMINEAE. 



VOL. I. 



4. Eragrostis pilosa (L.) Beauv. Small Tufted Love-grass. Fig. 575. 



Poa pilosa L. Sp. PI. 68. 1753. 



Eragrostis pilosa Beauv. Agrost. 162. 1812. 



Culms 6'-i8' tall, tufted, erect, slender, branched, 

 smooth and glabrous. Sheaths shorter than the in- 

 ternodes, smooth, sometimes pilose at the throat; ligule 

 a ring of short hairs; blades i'~5' long, i" wide or less, 

 smooth beneath, scabrous above; panicle 2'-6' in length, 

 the branches at first erect, finally widely spreading, 

 i'-ii' long, often hairy in the axils; spikelets 5-i2-flow- 

 ered, \\"-$" long, about \" wide; lower scales acute, 

 the first one-half as long as the second ; flowering scales 

 acute, the lower I" long, thin, usually purplish, the 

 lateral nerves faint or wanting. 



Waste places or cultivated ground, Massachusetts to Mich- 

 igan and Kansas, south to Florida and Texas. Naturalized 

 from Europe. Also in the West Indies. Aug.-Sept. 



5. Eragrostis Purshii Schrad. Pursh's Love*grass. Fig. 576 



?Poa caroliniana Spreng. Mant. Fl. Hal. 33. 1807. 

 Eragrostis Purshii Schrad. Linnaea, 12 : 451. 1838. 

 E. caroliniana Scribn. Mem. Torr. Club 5: 49. 1895. 



Culms 6'-i8' tall, tufted, usually decumbent at the 

 base and much branched, smooth and glabrous. Sheaths 

 loose, shorter than the internodes, smooth and gla- 

 brous; ligule a ring of short hairs; blades ii'-3i' long, 

 i" wide or less, smooth beneath, rough above; panicle 

 open, 3'-8' long, the branches spreading, i'-2$' long, 

 naked in the axils; spikelets 5-is-flowered, dull purple 

 or green, ii"-4" long, about \" wide; empty scales 

 acute, the lower about two-thirds as long as the upper, 

 scabrous on the keel ; flowering scales acute, firm, the 

 lower ones I" long, the lateral nerves prominent. 



In dry places, Maine to Ontario and North Dakota, 

 south to Florida and Texas. Southern Spear-grass. Aug.- 

 Sept. 



6. Eragrostis Eragrostis (L.) Karst. Low Love-grass. Fig. 577. 



Poa Eragrostis L. Sp. PI. 68. 1753. 

 Eragrostis poaeoides Beauv. Agrost. 162. 1812. 

 Eragrostis minor Host, Fl. Austr. i : 135. 1827. 

 Eragrostis Eragrostis Karst. Deutsch. Fl. 389. 1880-83. 



Culms seldom over 15' tall, tufted, usually decumbent 

 and much branched, smooth and glabrous. Sheaths 

 loose, shorter than the internodes, smooth, sometimes 

 a little pubescent, sparingly pilose at the throat; ligule 

 a ring of short hairs; blades i'-2i' long, \"-2." wide, 

 smooth beneath, rough above and somewhat pilose near 

 the base ; panicle 2'-4i' in length, the branches spread- 

 ing or ascending, f'-ii' long; spikelets 8-i8-flowered, 

 3"-5" long, about i" wide; empty scales acute, the first 

 two-thirds as long as the second; flowering scales ob- 

 tuse, I" long, the lateral nerves prominent. 



In waste places or cultivated ground, Massachusetts, New 

 York and Pennsylvania. Locally naturalized from Europe. 

 July-Sept. 



