ro I'LATE XVII 



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Na I. SeasMle'Manna Grass' 

 {Oiyceria nvtfitima, Wahl.) 

 <j. Floret, with stamens and 

 versatile anthers, with palC^ 

 with inflexed edges, and flow- 

 ering glume, b. Pistil, with 

 : feathery stigmas, c, Spike- 

 let, with anthers appeariw 

 between glumes of ' upjil^ 

 florets, d. Stem, withteives 

 and sheaths .and flowers ir 

 panicle. 



No. 2. Hedgehog Grass 



a. Floretk' Wabrciliate palea, 

 awned Aow«(1n^ ghime, and 

 within stanKnSt'With yellow., 

 anthers, and pistil with stig- 

 mas (feathtry); empty ^'lumes 

 bdow. /\ Floret, with pecti- 

 nate empty glumes and spike- 

 let with glumes and anthers. 

 c, Plant, \»ith rootstock, roots, 

 leaves, sheaths, and panicle 

 with spikelets and pectinate 

 eittpty ghunes. 



^ 



1^ 



No> y. 4^ushy Wheat Cra&f 

 (Jttg^Opyronjunieum, Heauv.) 

 a, JHoret, with, stamens, lo^g 

 filacients, and purple.'uiiherrs, 

 p&lea and flowciin^ glume, b, 

 SplkplQt. »-, I'loH«crinj,' s<ein 

 ,.i»kh l^m, slu-athed i>elow, 

 m^^'MJli^,' with' alternate 

 ',-\\\V„.^elet4. I 



No. 4- Squirrel-tail Grass 

 (^Hordeum marithnum. With.) 

 a, Pistil, with 2 feithery stigmas, lodicules 

 below, b. Bisexual middle spikelet with 

 palea, awned flowering glume, and awned 

 setaceous empty glumes, c. Lateral floret 

 with awned emfity glumes ; awns longer 

 than the glume, a»r\-ed flowenng glumes, 

 and rachilla. <^ Flowering stem, with 

 sb«atbing leaf and ?pike, with ^wited 

 ^\ spik*^. 



~ NA 5. LNToe Grass 



> / 



/j (ElytHUt arfruiriusy 



a. Bisexual floret, wwh stamens, pictii, 



\ palea, and 5-nerved "flowering glume. 6, 



^ Spikelet, with cmptVv glumes, flowering 



1 glumes, and anther? Mlf cxserted. ; (, , 



\ Rootsiock, with; siejii , and sheathing 



leaves. </, Fiib)rerii^£pijkeyi»'ith^ikeieti. /, 



