GRASS FAMILY. 



Ill 



Syntherisma sanguinalis 



,. ) Nash. Large Crub-gr;i.s> 

 (Fig. 240.) 



n if ii in snn-niiia/f I,. Sp. I'l. 57. 1753. 



itaria sanguinalix Scop. Fl. Cam. Ed. 2, i: 52. 

 1772. 



mtkerisma praecox Walt. Fl. Car. 76. 1788. 

 ]\isf>tilian sanguinale'LaJca.. Tabl. Kncycl. i: 176. 1791. 

 S\'iil/n-> isnni siiiiv-niniilis Nash, Bull. Torr. Club, 22: 

 "420. 1895. 



Culms erect or decumbent, often rooting at the 

 lower nodes, i-3 long, smooth. Sheaths glab- 

 us or pubescent ; leaves 2 / -6 / long, 2 // -4 // wide, 

 minute, glabrous or more or less pubescent ; 

 ikes 3-10, narrowly linear, 2 / -6 / long, digitate 

 in approximate whorls at the summit of the 

 1m; rachis flat, winged; spikelets \}"-\W 

 g, in pairs, one sessile or nearly so, acute, 

 lanceolate ; first scale minute, rarely wanting, 

 second one-third to one-half as long as the spikelet. 



In cultivated or waste places, throughout North 

 tncrica, except the extreme north. Naturalized from 

 Kurope. Widely distributed as a weed in all cultivated 

 regions. July-Aug. 



2. Syntherisma linearis (Krock.) Nash. Small Crab-gn .j. 241.) 



Panicum linmn- Krock. Fl. Sil. i < ( .s 

 Syntherisma serotina Walt I'l Car 76. 1788. 

 Digitaria humifusa IVrs. Syn. i -^ 1805. 

 Syntherisma ftabra Schrad. F'! 03. 1806. 



Paspalum amhiguum DC. Fl. (iall u;. 1806. 

 Panicum glabrum ('.and. Agro-t i 

 Syntherismalinea.ru Nash. Hull. T<>rr Cl)>. u 

 1895- 



Cnlms erect or decumbent, \i-2 long, smooth 

 and glabrous. Sheaths and leaves glabrous, the 

 latter i'-3' long, \"-i" wide, acuminate ; spike* 

 2-4, 2 / -4 / long, narrowly linear, digitate or ap- 

 proximate at the summit of the culm ; rachis flat. 

 winged; spikelets about i" long, in pain, some- 

 times in 3's, one of them sessile or nearly so, el- 

 liptic, acute ; first scale rarely present, second and 

 third as long as the fourth. 



In cultivated grounds and \va-;- 



to Ontario and Minnesota, south tu Florida and Louisi- 

 ana. Naturalized from F.umpv. July S it 



3. Syntherisma filiformis (L,. ) Nash. Slender Finger-grass. 



Panicum filiforme'L,. Sp. PI. 57. 1753. 

 Paspalum filiforme Sw. Prodr. 22. 1788. 

 Syntherisma villosa Walt. Fl. Car. 77. 1788. 

 Dii^itaria filiformis Muhl. Gram. 131. 1817. 

 Svntherisma filiformis Nash, Bull. Torr. Club, 22: 420. 

 1895- 



Culms erect, i-4 tall, slender, smooth. Sheaths 

 hirsute ; leaves I'-S' long, y^'-i" wide, erect, smooth 

 or scabrous; spikes 2-5, filiform, I'-s' long, approxi- 

 mate at the summit of the culm, erect or nearly so ; 

 rachis 3-angled, very slender, not winged ; spikelets 

 %"-\" long, elliptic, pubescent, in pairs, occasionally 

 in 3's, one sessile or short-pedicelled; first scale rarely 

 present; second three-fourths as long as or equalling 

 the third, which is equal in length to the fourth. 



Dry sandy soil, Massachusetts to Michigan, south to 

 Florida, Nebraska and Texas. July-Sept. 



