Brues—The Grasses of Milwaukee County. 
63 
5. Lemmas herbaceous, awn-pointed; spikelets collected in one-sided 
clusters.... .DACTYLIS. 
Lemmas scarious margined; rhachilla glabrous; lemmas mostly 
webby at the base.POA. 
6. Stigmas placed at or near the apex of the ovary.7. 
Stigmas plainly arising below the apex of the ovary; spikelets large, 
usually drooping; scales generally awned.....BROMUS. 
7. Lemma obtuse or subacute and scarious at the apex, usually 
toothed. 8. 
Lemma acute, pointed or awned at the apex, not webby. 
... .FESTUCA. 
8. Lemma plainly 5-7 nerved; styles present.GLYCERIA. 
Tribe HORDEAE. 
1. Spikelets solitary at each notch of the rhachis.2. 
Spikelets 2-6 at each notch of the rhachis.5. 
2. Lemma with its convex dorsal surface turned toward the rhachis. 
.LOLIUM. 
Spikelets with their lateral aspect turned toward the rhachis.3. 
3. Lemma with a distinct callus which is limited by a furrow at the 
base, falling off at maturity with a single grain which is grown 
to the palea...AGROPYRON. 
Lemma without a callus, persistent at maturity; grain free.4. 
4. Glumes subulate, 1-nerved. SECALE. 
Glumes ovate, 3-many nerved.~..TRITICUM. 
5. Spikelets 1-flowered, or with only the vestige of a second. 
.HORDEUM. 
Spikelets two-many flowered.6. 
6. Glumes a little smaller than the lemmas (in one species the glumes 
more reduced in a part of the spikelets)..ELYMUS. 
Glumes very small or none.HYSTRIX 
Andropogon L. 
Andropogon furcatus Muhl. Willd. Sp. PI. 4, 919. (1806) B. & B. 
Ill. FI. p. 102; Beal, 2, p. 55 (provincialis); Bull. Agrost., 7, f. 14 
(provincialis); Bull. Agrost., 20, f. 13; Gray, 7th, p. 94. 
There is a single specimen of this species bearing the label “Bay 
View, Sept. 4” in the herbarium of the Milwaukee Public Museum. 
We have not found it in the county although it is quite abundant to 
the southward in Racine County. 
Sorghum halepense (L.) Pers. Sp. PI. 1047. (1753.) var. techni- 
cum. B. & B. Ill. FI. p. 104; Hack, trans. p. 59; Gray, 7th, p. 95. 
The occurrence of a single specimen of this species has been brought 
to our attention. It was found in a yard, within the City of Milwaukee, 
under conditions which suggest that it sprouted from seed dropped by 
passing birds. 
Digitaria Scop. 
1. Pedicels terete; first glume obsolete; spikelets scarcely over 2 mm. 
long... .D. humifusa. 
Pedicels sharply angled; first glume present, minute; spikelets over 
2 mm. long..... .D. sanguinalis. 
Digitaria humifusa Pers. Syn. 1; 85. (1805.) B. & B. Ill. FI. p. 
Ill (linearis); Beal, 2, p. 110; (lineare); Bull. Agrost. 7, f. 37; Gray, 
7th, p. 95. 
There is a specimen of this species from Milwaukee County in the 
Milwaukee Public Museum. 
