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adipic 
ENGELMANN—NORTH AM. SPECIES OF JUNCUS. 473 
Epieronee to Gronov. Virg. 15 [leg. 152] is a pale in copy- 
in m Gronovius of Gramen junceum elatius pericarpiis ova- 
tis annum. Pluk. alm. That this is not the type of J. 
nodosus is clear, because it does not, like all other Gronovian 
plants, appear in the first edition of Spec. Plant. Linnzus’ 
H. Mann, Ub, n. 72; Judge 
Clinton and Dr. adie: Hb. n. 73, send from the shores of 
t . : 
Illinois, a stout, large (nearly 2 feet high) green-headed plant, 
with a decompound | pom of at least 30 greenish heads, each 
composed of 25-35 flowers. This latter is an interesting form, 
as it remiss al! three varieties. —The heads of the genuine 
color dint any of the other varieties; the flowers are 11— 
lines long, and the capsule, which is usually rostrate from an 
oblong body and not regularly subulate, in most instances 
considerably exceeds the sepals. The seeds as in 
other forms of this species, ovate or showadhs abruptly apicu- 
late, and prettily reticulated with very distinct cross-lineola- 
tion, 0.22-0.27 line long, their diameter being equal to about 
one-half their length, or, in some forms with slender seeds, 
much less. 
Var, 4 is usually a taller plant, 12-20 inches high, but quite 
— the compound or decom ryt a ra rather lax panicle is 
44, J. Canapensis, J, Gay in La Harpe, Mon. 134; Kunth 
1. ¢. 883; caulibus ceespitosis beretitins leevibus ; paniculee capi- 
tulis panci-multifloris ; sepalis lineari-lanceolatis plerumque 
