CIILOUIDE.E. 429 



BtifT, I'nipty ones usually .sliorter, unequal, obtuse, neute, or tapering 

 to a short i)oiiit; ilonil }^lume obtuse or abruptly pointed; palea 

 ToMed. Styles sbort, distinct, (irain loosely enelosed by tlieglunio 

 and paleu, but not adherent. Seed rugose witbin a loose* menibni- 

 nous pericarp, which either i)ersists or breaks up and falls away. 



Species about 7, widely distributed in the troi)ies. The flat 

 spikelets have sometimes been mistaken for those of Eniyrostis; 

 but their arran^'emcnt in two rows is always that of Chlori(lea\ 



A. Spikelets very closely crowded, spreading at right angles. I 



B. Spikelets imbricate (a) 



a. Spikes 1-;J cm. long 2 



a. Spikes 5-7 cm. long 3 



1. E. ^EGYPTirA(L.) Desp. PI. Atlant. 1: 85(1798). ('//nosxrus 

 .'FfiypticuK L. Sp. IM. 72 (175:1). IJ. vnivhtht Lam. 111. 1 : -.'03 

 (K91). E. perfinafa MoMich. Meth. Suppl. 08 (hSO'i). C/ihn'.i 

 wucrnnald Michx. Fl. Hor. Am. l:r)0 (180:5). J>(irfi/Iorfcuiin)i 

 .Kfpjptutrum Willd. Enum. 102!) (1800). E. radidans \{. \\v. 

 Prod. 180 (1810). E. wurroiuda Stokes, Hot. Mat. Med. 1:150 

 (181-;2). E. ciliatd Ifalin. Desv. Journ. Jiot. 4: 27:J (1814). E. 

 prosfrata ^prew^, Syst. 1 : ;550 (18'>4). 



Culms tufted or creeping and rooting like Copn'ola Darfi/hm, 

 .'JO-50 cm. bigli. Blades short, flat, ciliate, with long points. 

 Spikes usually 3-5 in number, digitate, 2-5 (^m. long, the angular 

 rachis prominent on the up})er side. Spikelets very closely packed, 

 spreading at right angles to the racliis, 2-tloweretl, with rudiments 

 of 2 other llowers, tirst glume acute, 1-nerved, 1.5 mm. long, second 

 a little longer, 1.5 mm. wide, emarginate, the keel exteiuling into 

 a dorsal awn 2 mm. long; floral glume broad, complicate, abru[)tly 

 pointed, 3-nerved, about 3 mm. long; palea shorter than its glume. 



New Jersey, Parker for X". S. Dept. Agricul. 525; Delaware, 

 (:W«%for Clark 1910; Florida, Curfiss liu:, 



A common weed of warm countries, introduced into North 

 America. 



2. E. Barcinoxexsis Costa. Ind. Seni. Ilort. liorcin. (1859). 

 Culms tufted, 15-30 cm. high. Leaf-blades short, about 2 mm. 



wide, obtuse or abruptly pointed, slightly ciliate about the short 



