TRIANDRIA, DIGYNIA, 
5 
the panicle drooping*, but alv^ays erect^ The same thing has 
been observed by Mr. Nuttall respecting the plant in ques- 
tion, and he informs me he is well acquainted with the true 
A. nutans, which is entirely distinct from the A. avenaceum 
of Michaux. I have therefore, supported by his authority, 
together with the fact of Mr. Elliot describing both plants, 
been induced to insert the above synonyms . In an excursion 
with the late Dr. Muhlenberg in the vicinity of Lancaster, I 
remember our collecting the same plant intended above, and 
his informing me at the time, that there was “ some confusion 
respecting that plant and the A. nutans, but that he believed 
they were the same*’^ I therefore made them synonymous in 
my Prodromus. In dry fields in Jersey, particularly near 
Woodbury, abundant. Perennial. September. 
2. A. culm erect 3 feet high compressed below, purpuras- 
above nearly round, purplish, with smooth joints.®®^®* 
Branches remotely alternate bearing spikes at the 
apex. Leaves lanceolate acuminate somewhat 
mucronate, glaucous, hairy at the base, scabrous 
on the margin. Sheaths nerved, hairy below, 
smooth above. Ligula retuse. Spikes simple, 
peduncles in pairs and by threes, upright, lateral 
and terminal. Rachis ciliated. CaL hermap, 
2»valved acute longer than the corolla, woolly at 
the base. Cor, hermap. 2 valved purplish smooth, 
or under a lens, ciliated on the margin, one valve 
emarginated awned. Stam, 3, anthers purplish 
or yellow. Fist, 2, purplish feather}". Seed 
purplish, oblong. 
A. scoparius, Mich. 
Purple heard-grass. 
In arid soils both on the Pennsylvania and Jei’sey side of the 
Delaware, common. Perennial. August. 
3. A. culm 5 feet high semi-terete, erect smooth, fm-catus, 
jointed ; joints smooth. Branches alternate. 
Leaves lanceolate hairy at the base^ margin sca- 
brous. Sheaths hairy. Ligula bearded at the 
apex. Spikes terminal conjugate and digitate ; 
peduncles solitary, rachis hairy. CaL hermaph, 
glume 2-valved pubescent on the margin, lateral- 
