Pedem. 2:l>5') (ITH')). //. //y.s/y/r Kotli, Ciitiilcct. 1:23 (1707). 

 11. piihescrnx (iiiss. V\. Sic. I'nxi. I : U4 (IS2T). 



A sinootli soiiu'wliiit {jliuit'oiis ainl tlccimibciit aiimml, lO-liUciii. 

 lii^'li. Slicallis iiltoiit tin' Icii^Mli of tile iiiU'rnodi's, tlii> upper oiio 

 iiillatcd; li<,aik' a inert' riii;,S l)liitle.s '.•-() cm. loii^, mostly iiivoliito. 

 Spiko .suhlcrett', sciircely cxserteil, 2-t cm. l<ni;i,'. racliis breaking 

 wlien ripe, tlio joijitd 1 mm. long. Spikelets 1 cm. \o\\<^, iiicliidiiij^ 

 tlio stilT spreadiiij,' uwns; stipes of lateral Hitikelets 1.2 mm. lung; 

 empty glumes all lanceolate, not ciliate, one of ouch lateral spikelet 

 a little broader. 



New Jersey (ballast-grounds), Srribner for U. S. Dept. ;\gri- 

 cul. T7<); Oregon, J/owcU. 



Found along the tioast in tbe Old World from Denmark to north 

 Africa. Introduced into North .Vmerica. 



5. II. (iissoNKANi M Pari. PI. Palerni. 244, ol)s. — Sicil. 

 Culms smooth, often deciumbejit, 2()-.')0 cm. long. Leaf-blades 



flat, thin, iinoly pubescent. 2-.'j cm. long, 2 mm. wide. Spikes 

 Hubterete, not included, 2-4 cm, long, 1 cm. diatneter, breaking 

 when ripe, joints of the rachis 1 mm. long. Lateral si)ikelets 

 raised ou stijies 1 mm. l<»iig; emj)ty ghnnes mere bristles 12 mm. 

 long, excepting that the iniu-r one to ca(;]i lateral spikelet is twice 

 as wide as the others; central iloret G mm. long; the floral glume 

 rough, oval when s^jread, 5-nerved, the awn 12 mm. long; palea as 

 long as its glume. Tjalei-al florets small rudiments 2-4 mm. long, 

 including the awn. This is much like our specimi'us of If. niariti- 

 mnvi. When c()m{)ared, //. Clnssoiieaniiin has the iniuT lateral 

 empty glunu'S half as long as wide, the ra(!his and base of glumes 

 less callous, the lateral florets smiiller, softer and less developed. 

 Introduced into Oregon and California from Europe. 



6. H. MriiiM-M L. Sp. PI. 85 (1753). Wall-isaulky. Way 

 Bkxt. //. cilialum (Jilib. Kxercit. 2:520. Zvocritan inurimitii 

 Beauv. Agrost. 115 (1812). //. leporinuin iiink, Linna'a, 9:1:!:! 

 (1835). 



A coarse decumbent annual, 30-00 cm. high. Leaves often 

 hairy ; sheaths about the length of tiie internodes; ligule very 

 sliort ; blades .'5-(I cm. long. Spike 4-8 cm. long, often partially 



