IIOHDK.K. 



688 



narrow. Spiko terminal, sloiulor, linn, striii<j;lit or curved, one 

 glunio spreadinj? wlion in ll(»wor. They are (listin^'uiMlied by rijjid 

 outer <(luu)es, oik- or two in nunil)er, inueli ](tnj,'er tlian tlio hyaline 

 llorul j,'luine, sliowin;; a relatioM«liii) to Jk'off/jn'Uid. Some species 

 liave l)e((n i)laeed in Oji/iiin'iin. 



Tiiero are G spi'cies belon<,'iu^' to the Kastern Continent, and 1 

 to Calit'ornia and ()re;,'on. 



1. L. riMi'ouMis (Koth). Trin. Fund. Aj^'rost. I'^IJ (1820). 

 liiitll,n'lliaJi]iformis\ii){\\, I'steri, Ann. Mot. 10: 38 (ir!i4). 



A slender branching? <rlabroiis decunibcnt annual, !.'0-:J0 cm. 

 hi^di. Slioatlis shorter than the intenujdes; ligule about 1 mm. 

 long; blades l-Il em. long, llrm, involute. 

 Spike I'ucloried at the base, 5-15 em. long, 

 straight or curved, rachis stilT. Spikelets 

 5-T mm. long; empty glumes oblitpie, linear- 

 oblong, acuti. ; iloral glume 1 -nerved. 



lionU'rs of brackish marshes. 



Occasiomd; introduced from Europe. 



Var. iNfiuvATrs (L.). Trin. Fund. 

 Agrost. i;;} (18-^(»). UotUiwUia incur vaia 

 L. 1". Suppl. 114 (1781). 



Culm and spike stouter; tlie hitter much 



^"'■^'^^^- KiG. \\^.—Le]itnrm flli- 



Pennsylvania, Scrihiicr liSSSa. formix. A, a pmiion 



.. ^, , of spikf ; n, sinUelet. 



1;J9. (2G9a). SCRIBNERIA E. Hack. Coult. (Uici.anlsoii.) 



Bot. Caz. 13:105 (1888). 



S[)ikelets l-ilowered, sessile and lialf embedded in the alternate 



notches of a more or less articulate, usually simple spike. Kachilla 



very short, articulate above the lower glume, extending as a short 



hairy awu beside the floret. Empty glumes 3 in number, narrow, 



firm, acute, slightly unerpud, inequilateral, having no nerves next the 



rachis and two beside the keel in front; floral glume a third shorter 



than the first, membranous, keeled, bearing a stout awn between 



the teeth ; ])alea hyaline, 2-nerved, 2-toothed, longer than its glume. 



Stamen 1, anthers 3 mm. long. Stigmas short, sessile, feathery. 



Grain linear, laterally compressed, free, without a groove, embryo 



