82 



PANRACE.E. 



R. compressa L. f. Suppl. 1U(1781). Xxw. fasciculata {\jim.) 



Hack., D. ('. Monog. Phan. G:-^,SO (1880). 



R. fascictdata Lam. 111. Gen. 1 : -lO^ (ITOl). Lepturix fascicu- 



lafus Trill. Fund. Agrost. 1-^3 (18'^0). llcinarihria ILwan/ii 



Vasey. 



Culms branching, compressed, 120 cm. or more liigli. ^jowei' 



blades few and rather short, keeled, ciliate on the margins, the 



sheaths of the other leaves half to two-thirds 



as long as the internodes; ligule short ciliate, 



blades of the culms 5-7-nerved, more or less 



scabrous, usually conduplieate, 10-18 cm. 



long, 4-0 mm. wide. Spikes numerous. 



terminal and lateral, usually compressed and 



more or less enclosed, (5-10 cm. long. Ses- 



ailc spikelets about as long as the joints of 



the rachis. In the sessile spikelets. first 



glume oblong acute. mm. long, about 



10-nerved, second glume linear, as long as 



„ « ., . . the first, third irlunio linear acute. 5-0 mm. 



iui. y.—MiiniKiins com- 



pnxm. Portion of a long, fourth oviite-lanceolatc. obtuse. 4 mm. 

 .si.ik...x3. (Rkluirdson.) ^^^^^, ^^^^^,^ about the length of its glume. 



In pcdivellute spikelets first glume fiat, linear-lanceolate, extreme 

 ti]) obtuse and "2-toothed, 7-nerved, second glume lanceolate, ex- 

 tending to the apex of the first glume, compressed. .'5-o-nerved, 

 third glume and palea much alike, about 3 mm. long. Grain 

 2 mm. long. 



S. E. Texas, Havarih XeaUei/ ; Mexico, Pn'iif/k 3132. 

 Also found in N. Africa and S. W. Europe. 



10. (87). Hackelochloa Kuntze. Rev. Gen. PI. 770 (1801). 

 Jhntisiin's Sw. Prod. Veg. Ind. Occ. 1 : 180 (1707), not Linn. 



Si)ikelets in pairs in the notches of the 1-sided articulate rachis 

 of a simple spike. 1 sessile and hall" einltedded in a cavity on the 

 rachis, with 1 perfect llower. the other on a sliort appressed pedicel 

 reduci'd to 2 em|>ty glumes, or with a staininate fiower, the spike 

 single on the jieduncle above a sheathing bract. Glumes of the 



