

ORDKR CXI.. (JRAMTNr^E GRAS< -I AMII.Y. 



2. 0. melanocarpa. Muck Millet. 



Culm erect simple, leafy ; leaves lanceolate, aenmlnate, flat, with sheaths 

 bearded at t!i* throat; panicle nwtly simple, consisting of loose racemes ; 

 flnmM acuminate, mncrooate : palea somewhat hairy, nearly Mack when ma- 

 ture ; lower one lipped with a loaf, tnlght awn, nearly an Inch long ; fruit 

 black. A iMfy pedea, remarkably distinguished by Its black frnlt, rather com- 

 mon In rocky wood*. Cnlm 8 * ft. high. July Aug. 



in. AUlSTIDA. 



Spikelets 1 -flowered. Glume? 2. unequal, often mncronate; 

 pale* pedicellate ; lower tipped with 3 awns ; upper palea much 

 smaller, minute. Stamens 3. Stigmas plumose. 



1. A. dichotoma. Poverty Grass. 



Culms tuftM, dlrliotomoudy anil very branching; leaves very narrow, more 

 or leas revolute; apikeJets on elavate pedicels, In short, appressed racemes; la- 

 teral one* minute, middle one as long or longer than the palea, bent or twisted. 

 A common gran In sandy Held*, distlngnlshed by its very illchotomons culm, 

 which Is V \V high. A of. Sep. 



11. SPARTlNA. 



Spikelctg 1-flowered, much compressed, arranged in two rows 

 on a triangular axis, forming dense racemose spikes. Glumes 2, 

 compressed, very much carinatc, acute or mucronatc, rough or 

 l.ri--lv on the keel ; upper one the largest, longer than the awn- 

 less palest. Stamens 3. Styles distinct, long. 



L S. polystdchya. 



Marsh Reed-Grass. 



Cnlm erect, rigid, tall and stout; leaves broad, rough on the margin and 

 somewhat beneath, very long, Involute toward the extremity ; spikes purplish, 

 very numerous. In a dense raceme ; glumes mncronate ; paleas equal, twice as 

 long a* the lower glume. A tall, rank grass, growing in salt marshes. Culm 

 8-8 ft. high. Aug. 



2. S. jiincea. Salt Rusli-Grass. 



Calm erect, slender ; leaves very narrow. Involute the whole length ; splke- 

 leU few, 2 K, on short, smooth peduncles; uppermost sometimes senile; 

 glumes acute, lower one much shorter than the lower palea. A much slenderer 

 species than the last, with very fine, almost capillary, Involute leaves, growing 

 on the sea-beach and In salt marshes. Cnlm 12 ft. high. Aug. 



3. S. glabra. Smooth Marsh-Grass. 



Culm tall, erect, very smooth and somewhat succulent; loaves flat, ^ cry 

 smooth, very long, tapering to a very long, flno point, which soon becomes In- 

 volute, smooth on the margin ; spikes several, 5 15, erect, sessile; upper glume 

 scarcely exceeding the equal paleav A rank species, distlngnlshed by the 

 smoothness of all let parts, and the comparatively few senile spikes. Culms 

 9-ftnlgri. Aug. 



1!. DiCTTLIS. 



Spikclets 2 3-flowercd, aggregated in dense clusters, forming 

 a dense, branching, 1-sided panicle. Glumes unequal, cnrinate, 

 mucronate. Stamens 3. Per. 



1. P. glomerata. 



Orchard Grass. 



Culm erect, somewhat rongh ; leaves linear-lanceolate, rough, somewhat 

 glaucous, carlnate ; panicle dense, second, with remote branches; glumes very 

 unequal ; anthers large, yellow. A common grass, Introduced and naturalized 

 In shaded fields, especially orchards. Cnlm 28 ft. high. Jam. 



18. QLTCfeEIA. 



Spikelets several-flowered, mostly cylindrical and not flat 

 Flowers sessile, deciduous by separation of the joints of the 

 rachis, leaving the membranous, somewhat unequal glumes. 

 Palea; nearly equal ; lower one 67, mostly 7-nerved. Stamens 

 88. Per. 



* Kpitn rather dtrue, otatt or oblong. 



1. 0. Canadcnsis. Rattlesnake Grass. 



Cnlm erect, smooth ; leaves rough, somewhat glaucous; panicle very large, 

 somewhat pyrntnMnl, with long, capillary, spreading branches, which at length 

 are drooping ; splkcleU rather large, ovate, short, tumid, 8-flnwer. 

 Ing; lower palea acute, longer than the obtuse, entire npper one; stamens t. 

 A stoat, showy raw, S S ft. high, distinguished by Its Urge, swelling, drooping 



2. G. elonp:ita. 



rats. 



Culm erect, smooth ; leaves very long, rough ; panicle contracted, narrow, 

 very long, with racemose, somewhat secnnd, nodding, sppreed branches; 

 pikelets t o-flowered, erect, tumid, ovohl ; lower palea obtuv, somewhat 

 longer than the very obtuse npper palea. A common specks In wet meadows 

 and woods, distinguished by iu abort, ovoid splkclcts, arranged In a very long 

 racemose panicle. Culm 28 It high. Jmu July. 



3. G. nerv;ita. Nerved Manna-Grass. 



Culm erect, smooth; leaves long, rough above, with rongbtsh sheaths; 

 panicle large, broad, diffuse, with capillary, at length drooping branches; spike- 

 leta small, very numerous, oblong-ovate. 8 4-flowen-il. purplish ; palest obtasc, 

 nearly equal, conspicuously veined ; upper one 2-loothed ; stamens 8. A com- 

 mon meadow grass, 1 8 ft high. June. 

 



4. G. pallida. . Pale Manna ' 



Culm smooth, creeping at base and then ascending; leaves flat, somewhat 

 glaucous beneath, pate green above ; panicle rather large, nearly simp 

 loose, with capillary, erect, spreading, roughlab, few-flowered branchi - 

 lets lanceolate, about 5-flowered, 6-velncd, truncate at apex, minutely o-tooth- 

 ed ; upper one 2-toothed. Common In shallow water and very wet swamps. 

 Cnlm 18 ft high. July. 



5. G. aquatica. Water Manna-(l r 



Culm erect, smooth, stout, leafy ; leaves broadly linear, thin ; panicle large 

 and long, very much and diffusely branched ; branches somewhat - 

 length spreading; splkelets narrow-oblong, B 8-flowered, mostly purplish 

 lower palea truncate ; npper one shorter, 2-toothed. A stout. 

 common, especially In Northern districts. Cnlm 8 5 It high. 

 * * SpUteleU linear, lootdy Jlowavi. 



6. G. flu i tans. Floating Manna-Grn 



Culm compressed, ascending from a creeping, rooting base ; leaves broad- 

 linear, short, very smooth ; panicle very long, contracted, with ncarh 

 racemose branches; splkelets 7 ll-flowercd, an Inch or more long, appreewd; 

 lower palea obtuse, mostly somewhat longer than the ir < nquatio 



species, distinguished from the preceding by Its long splkelets, and frmn tho 

 following by its obtuse flowers. Culm 2 4 ft long. Rather common In shal- 

 low waters, Junt. 



7. G. acutifl6ra. Pointed Manna-Ci '/ 



Culm smooth, compressed, ascending from a creeping, rooting base; leaves, 

 narrow, small, shorter than In the last ; panicle very long, much contracted, 

 with nearly simple, racemose branches ; splkelcts very long, from 1 ' 1 J', ."> 

 ID-flowered; lower palea acute, shorter than the upper one, which tapers to a 

 long, acuminate point A species much resembling the last It Is found In 

 similar situations, but Is distlngnlshed by Its much longer and very acute 

 flowers. Culm 2 8 ft long. June. 



14. lir.IZDI'VIlUM. 



Spikelets 6 12-flowi'r. .1. r..ni|.ressed, arrnn^i'd i" " 

 dense, spicate or somewhat capitnt^ p.-inii'l.-. (ilium 

 lower ones nerved. FalesB2; lower palen somewhat cori: 

 and obscurely nerved, aont. . ( >vry jioilioi'll:. 

 I>]ye:unously dici>cii>ii!>. Per. 



1. B. spicutuni. QwMng-Qrau. 



Culms smooth, tufted, rigidly erect, very leafy above ; ler.ves long, rigid, 

 Involute, acute ; panicle densely spicate, wltli abort branches 

 sessile splkeleta; flowers smooth, dioecious; stigmas of the plstillat. 

 very long, plumose. A common grass of the salt marshes, growing in tuO-s 

 6.-,* high. A*. 



Spiki-lfts compressed, ovate or oblong, few-flowered, ii. 

 open panicles. Glumes usually shorter thnn tin. ll... - 

 lowcroiii' smnlliT. ]/>W.T |>aloa nric>ii* on the mnrr 

 mostly ol"!lio.l at lm.o with n w.ft, wrli-liki 1 do-wn. I |>]>rr ].:ili'u 

 smaller, 2-toolhrd, d<vi.linnn willi I ili.> ll.m.-r. 



IIH-II> 'J 3. Per., except No. 1. 



1. P. annua. Low Meadow-Grass. 



Culms low, mostly decumbent or spreading, somewhat compressed ; leaves 

 p-liort, smooth, with smooth sheaths ; panicle nearly as long as broad, with 

 mostly solitary, at length horizontal branches; splkelets 8 6 (lowered, on vorv 



