463 
New or Noteworthy American Grasses,—II. 
By Gero. V. Nasu. 
SPOROBOLUS ASPER (Michx.) Kunth. Enum. 1: 210. 18 33. 
Agrostis aspera Michx. Fl. Bor. Am. 1: $2. 160% 
Vilfa Drummondii Trin. Mem. Acad. St. Petersb. (V1.).5¢ 
Nat. 4: Botanique, 106. 1845. 
Sporobolus asper var. Drummondti Vasey, Contr. U. S. Natl. 
Herb. 3: 60. 1892. 
This grass and the next seem to have been confused. The 
plant named S. asper by Dr. Vasey is the Agrostis longifolia Torr., 
and not the 4, aspera of Michaux, who apparently had in mind, 
So far as can be determined from his short description, the form 
with a long palet. The plant of Michaux, as here understood, has 
a long-acuminate, sometimes almost awned, palet, which usually 
much exceeds the scale; the outer scales narrow and acute; the 
culm and panicle, which is generally exserted, quite slender. 
Grows from Delaware to Illinois and Missouri, south to Florida 
and Texas, 
Vilfa Drummondit Trin. may eventually be separated as dis- 
tinct, but at present it seems preferable to refer it to this species, 
intermediate forms being very numerous and apparently connect- 
ing the two, 
SPOROBOLUS LONGIFOLIUS (Torr.) Wood, Class-book, 775. 1861. 
Agrostis involuta Muhl. Gram. 72. 1817. Not Poir. 1810. 
Agrostis longifolia Torr. Fl. go. 1824. 
Vilfa Hockeri Trin. Mem. Acad. St. Petersb. (VI.) Sc. Nat. 4: 
Botanique, 106. 1845. 
Sporobolus asper Vasey, Contr. U.S, Natl. Herb. 3: 59. 1892. 
Not Kunth. 1833. 
This is usually a more robust plant than the preceding. The 
Panicle js generally more or less included in the upper sheath, 
SOMmetimes merely protruding from the sheath fissure. The spike- 
lets are wider, with broad, obtuse scales and palet, the latter about 
€qualling the third scale. 
Occurs from Maine to Illinois and Kansas, south to Long Is- 
land, Tennessee, Mississippi and Texas. 
