186 
Beckmannia eruceformis (L.) Host, Gram. Austr. iii, 5, t. 6 (1805); Phalaris 
eruceformis L. Sp. Pl. i, 55 (1753). 
Found only in one wet meadow, northeast of Whitman, July 29 (No. 1624). 
Spartina cynosuroides (L.) Willd. Enum. i, 80 (1809); Dactylis cynosuroides L, 
Sp. Pl. 1, 71 (1753). 
Common near water: Mullen, July 18; northeast of Whitman, July 29 (No. 1577). 
Panicum capillare L. Sp. Pl. i, 58 (1753). 
Very large specimens were collected in an old field near the Forks of Dismal 
River, June 13 (No. 1538). Another form was collected in a dry lake west of Whit- 
man, September 19 (No. 1788). In this the leaves are narrower and, as well as the 
sheaths, less hairy. Stem more slender and branched from the root; spikelets, as 
also the fertile flowers, acute. It seems toagree with variety agreste Gattinger,' but 
the spikelets are much larger and more pointed. This form is named variety occiden- 
tale in the National Herbarium, but no description has been published as far as I 
know. 
Panicum virgatum L. Sp. Pl. i, 59 (1753). 
The leaves are more or less hairy on the upper side, especially just above the 
ligule. In richer soil,it grows to 6 to 10 dm. high, and has an open panicle. Mullen, 
July 17; Forks of Middle Loup River, July 26; Grant County, July 29 (No. 1561) 
On the sand hills it is lower, 3 to 5 dm. high, more glaucous, and with shorter and 
denser panicle. Mullen, July 24; South Dismal River, August 14 (No. 1597). One 
of the best hay grasses. 
Panicum scoparium Lam. Eneycl. iv, 744 (1797). 
In the region this was lower thar it usually is in Nebraska. Thedford, June 14 
(No. 1279). In some localities the plants were very low, only 1 to 1.5 dm. high, 
with crowded leaves and small panicle, partly included in the sheath. Dismal 
River, June 29 (No, 1493). A similar form, which has also very narrow linear-lan- 
ceolate leaves, has been placed with P. wilcoxianum in the National Herbarium, but 
I think it should be referred to P. scoparium. Mullen, July 24 (No. 1604). 
Panicum wilcoxianum Vasey, Bull. 8, U. 8. Dept. Agric. Bot. Div. 32 (1889), 
This can be described by the statement that it has the leaves of P. depauperatum, 
but panicle and flowers more like those of P. scoparium: Thedford, June 16 and 19 
(No. 1808). 
Panicum dichotomum L. Sp. Pl, i, 58 (1753). 
Wet meadow, Natick, June 20 (No. 1368). 
Panicum crus-galli L. Sp. Pl. i, 56 (1753). 
Two forms of this were collected: one prostrate, probably introduced, in a road, 
north of Mullen, July 24 (No. 1590); the other a tall, erect, glancous form, undoubt- 
edly native, in a swamp, 15 miles south of Whitman, August 4, and west of the same 
place, September 9 (No. 1643). 
Chameeraphis viridis (L.) Porter, Bull. Torr. Club, xx, 196 (1893); Panicum viride 
L, Sp. Pl. ed. 2, i, 83 (1762). 
Old field, Mullen, July 18 (No. 1568). 
Cenchrus tribuloides L. Sp. Pl. ii, 1050 (1753). 
Strangely, the sand bur was not common in the sand hills. Mullen, July 17 (No. 
1548). 
Homalocenchrus oryzoides (L.) Poll. Hist. Pl. Palat. i, 52 (1776); Phalaris ory- 
zoides L. Sp. Pl. i, 55 (1753). 
Wet meadows in Grant County, August 4, September 20 (No. 1644). 
'Tenn. FL. 94 (1887). 
