144 POACEAE 



10. P. fluitans (L.) Kuntze. In shallow water: Gulf of St. 

 Lawrence and near N. Y. City. Perhaps introduced. 

 Common in Europe. 



Rare in the Bronx and near Tappan, Rockland Co., unknown 

 elsewhere in our range. 



ii. P. acutiflora (Torr.) Kuntze. In wet places: Me. to Del. and 

 Ohio. 

 Scattered throughout the range, very lare in the pine-barrens. 



70. Puccinellia Pari. 



Panicle branches naked below; flowering scales 2 mm. long, or less, 



truncate at the apex. I- P. distans. 



Panicle branches spikelet-bearing to the base; flowering scales 2-2.5 



mm. long, acutish or obtuse at apex. 2. P. fasciculata. 



1. P. distans (L.) Pari. On salt meadows and sea beaches: 



N. S. to Del. Perhaps naturalized from Europe. 

 Scattered throughout the sea-beaches, and salt marshes. 



2. P. fasciculata (Torr.) Bicknell. Salt marshes: Nantucket to 



N.J. 



Scattered along the coast of Conn., N. Y. and N. J.; rare. 



Puccinellia Borreri (Bab.) Hitchc. has been collected as a waif, especially in Conn. 

 It is a native of Europe. P. angustata (R. Br.) Rand and Redfield has been collected 

 at Old Lyme, Conn. 



71. Festuca L. 



Leaf-blades involute or folded, 2 mm. wide or less. 

 Annuals; stamens I or 2. 



Awn not longer than flowering scale; spikelets 5-00 flowered. I. F. octoflora 

 Awn more than twice as long as flowering scale; spikelets 2-5 



flowered. 2. F. Myuros. 



Perennials; stamens 3. 



Plants with rootstocks or stolons. 3- F - rubra. 



Plants densely tufted, no rootstocks or stolons. 



Flowering scales short awned; leaf-blades setaceous. 4. F. ovina. 



Flowering scales awnless; leaf-blades capillary. 5. F. capillata. 



Leaf-blades flat, 4 mm. wide or more. 



Flowering scale awnless or short-awned. 



Flowering scales 5-7 mm. long; spikelets 5-10 flowered. 6. F. elatior. 



Flowering scales 4 mm. long or less; spikelets 3-6 flowered. 7. F. nutans. 

 Flowering scales with awns twice their length or more. 8. F. giganlea. 



I. F. octoflora Walt. In dry sandy soil : Que. to Br. Col., south 

 to Fla., Tex. and Cal. 

 Throughout the range, rare northward, common southward. 



