98 POACEAE 



Inflorescence long, linear, little divided, not in corymbiforra 

 masses. 2. A. virginicus. 



Sheaths at the summit or upper part of the stem much enlarged; 

 racemes on one of the branches exserted much beyond the 

 others. 3. A. Elliottii. 



Pedicellate spikelets staminate, of 3 or 4 scales, equalling or exceeding 



the sessile spikelets. 4. A . furcatus. 



i. A. glomeratus (Walt.) B. S. P. In damp soil: Nantucket to 

 southern N. Y., south to Fla. and Miss. 

 N. Y. The south side of L. I. and near Tottenville, S. I. 

 N. J. Throughout the coastal plain and at Clifton. 

 Pa. Bucks, Montgomery, Delaware and Chester counties. 



Tertiary, common: Cretaceous, less common: Older Formations, 

 scattered. 150-220 days. Sea level-800 ft. 



2. A. virginicus L. In dry or moist soil: Mass. to 111., Fla. and 



Tex. ; in the Bermudas, Bahamas and tropical Am. 



Throughout the range, rare northward, becoming common 

 southward, and along the coasts. 



3. A. Elliottii Chapm. In dry or moist places: southern N. J. 



to Mo., south to Fla. and Tex. 



N. J. Rare in Camden, Gloucester, Salem and Cape May counties, 



not in the pine-barrens. 

 Pa. Rare near Ashbourne, Montgomery Co. 



4. A. furcatus Muhl. In dry or moist soil: Me. to Assin., south 



to Fla., Tex. and northern Mex. 



Scattered throughout the range except the pine-barrens and the 

 strip to the east of them. 



7. Sorghastrum Nash. 

 1. S. nutans (L.) Nash. (S. avenaceum (Michx.) Nash). In dry 

 places: Me. to Manitoba, south to Florid aand northern Mex. 

 Not uncommon in most parts of our range. 



8. Holcus L. (Sorghum Moench.) 

 1. H. halepensis L. In fields and waste places: E. N. Am. 

 Native of Europe and Asia. 



Rare as a scattered waif. 

 Holcus Sorghum L. has been collected as a waif on S. I. and L. I. 



