64 Wisconsin Academy of Sciences, Arts, and Letters. 
Digitaria sanguinalis (L) Scop. Sp. PI. 57. (1753.) B. & B. Ill. 
FI. p. Ill; Beal, 2, p. 110; Bull. Agrost. 17, f. 339; B. & B. Man. p. 77; 
Gray, 7th, p. 96. 
This naturalized European species is extremely common in waste 
land within or close to the City of Milwaukee. 
Panicum L. 
1. Annuals .2. 
Perennials . 
2. Panicle erect, spikelets not over 2 y 2 mm. long.P. capillare. 
Panicle drooping, spikelets 5 mm. long.P. miliaceum. 
3. Basal leaves similar to the culm leaves; not forming a winter 
rosette; culms usually simple, unbranched.P. virgatum. 
Basal leaves usually distinctly different from the culm leaves, form¬ 
ing a winter rosette; culms usually much branched late in the 
season .4. 
4. Leaves about 3 cm. wide; spikelets 31£ mm. long.P. latifolium. 
Leaves less than 1 cm. wide; spikelets less than 2 mm. long. 
.....P. tennesseense. 
Pancum capillars L. Sp. PI: 58 (1753). B. & B. Ill. FI., p. 123; 
Beal, 2, p. 129; Bull. Agrost., 17, f. 350; B. & B. Man., p. 81: Gray, 7th, 
p. 103. 
Abundant along country roads and waste places throughout the 
county. 
Panicum miliaceum L. Sp. PI. 58 (1753). B. & B. Ill. FI., p. 123; 
Beal, 2, p. 125; Hackel, trans., p. 76, f. 77; B. & B. Man., p. 82; Gray. 
7th, p. 104. 
Near the Rolling Mills in Bay View, July 19, 1908. 
Panicum virgatum L. Sp. PI. 59 (1753). B. & B. Ill. FI., p. 122; Beal, 
2, p. 123. Bull. Agrost., 7, f. 54. B. & B. Man., p. 82; Gray, 7th, p. 104. 
Along the Milwaukee River near the Cement Mills. 
Panicum tennesseense Ashe. B. & B Ill. FI., p. 120 (nitidum pars.); 
B. & B. Man, p. 85 (nitidum pars); Gray, 7th, p. 110. 
On dry, rocky hillsides along the Milwaukee River opposite the 
Cement Mills. 
Panicum latifolium L. Sp. PI. 58 (1753). B. & B. Ill. FI., p. 117 
(macrocarpon); Bull. Agrost., 17, f. 396; B. & B. Man., p. 88; (macrocar- 
pon); Gray, 7th, p. 117. 
On summit of lake bluffs at Bay View; Mitchell’s Woods and New 
Coeln. 
Echinochloa Beauv. 
Echinochloa crusgalli (L.) Beauv. Sp. PI. 56 (1753). B. & B. Ill. 
FI., p. 113 (Panicum); Beal, 2, p. 119; Bull. Agrost. 7, f. 64; B. & B. 
Man., p. 78; Gray, 7th, p. 117. 
Setaria Beauv. 
.$. glauca. 
. 2 . 
8. verticillata. 
.3. 
1. Setae at base of each spikelet 5 or more. 
Setae at base of each spikelet 1-3. 
2. Setae downwardly barbed. 
Setae upwardly barbed.... v : * 
3 Spikelets 2 mm. long; panicle 2-8 cm. long, 1 cm. or less thick...... 
" * . 8. vmdis, 
Spikelets 3 mm. long; panicle 5-10 cm. long, about 1 cm. in diameter. 
y . 8. italica , var. germanica , 
Setaria glauca (L.) Beauv. Sp. Pi. 56 (1753). & B. Ill. FI., P 
126 (ixophorus); Beal, 2, p. 155 (Chamaeraphis); Bull. Agrost. 17, f 
401; Bull. Agrost. 21, p. 9 (Chaetochloa); B. & B. Man., p. 89 (Chaetoch 
loaj; Gray, 7th, p. 118. 
