FLORA OF WASHINGTON AND VICINITY. 133 



Poa flexuosa, Muhl. 

 First half of May. 



Poa brevifolia, Mnlil. 



March or early iu Aiiril. 



Eragrostis reptans, Nees. 



Islands of the Potomac. July, August. 



Eragrostis imaoides, Beauv. 

 liare. July. 



Eragrostis jJo«'OiV7es, Beauv., xar. megastacliya, Gray. 

 In the city. July. 



Eragrostis Frankii, Meyer. 



Little Falls, rare. Septemher. 



Eragrostis Purshii, Schratl. (?) 



Abundant in the city, and apparently introduced. Dr. Vasey thinks this is E, 

 Purshii, and so it must be if the acute 3-nerved flowering glume is characteristic of 

 that species, hut our plant is often only 12<=™ to 15^^^'" high, and the spikelets are 

 generally as long as or longer than their pedicels. I am strongly inclined to believe 

 that it is a form of E. pilosa. July. 



Eragrostis capillaris, Nees. • 



August, Septemher. 



t Eragrostis pectinacea, Gray. 

 July to September. 



Pestuca Myurus, L. Fescue-Grass. 

 Last half of May. 



i Pestuca tenella, Willd. 

 First half of June. 



Pestuca ovina, L. Sheep's Fescue. 

 Waste places in the city (Dr. Vasey). 



Pestuca elaiior, L. Taller Fescue. Meadow-Fescxje. 

 Waste grouuds in the city. First half of June. 



Pestuca nutans, Willd. 

 Last half of May. 



Bromus seealinus, L. Chess. Cheat. 

 Middle of May to middle of June. 



Bromus racemosus, L. Upright Chess. 

 Last of May. 



Bromus mollis, L. Soft Chess. 



This and the last are scarcely distinct, while intermediate forms seem to connect 

 thorn Avith B. seealinus. Last half of May. 



Bromus ciliatus, L. 



Last of May or first of June. 



