ENGELMANN—NORTH AM. SPECIES OF JUNCUS. 459 
R. Brown, -/. Richardsonius, Rem. & Schult., J. pelocarpus, 
Gray Man. ed. 1, 507, in part, non pai arom var. 
palboarpiie, Gray Man. ed. 2, 482, in o fede atus, Vasey, 
in herb.—This form ought, perhaps, not 0 be separ rated from 
ists of Europe, where both forms are much m ant.— 
With us this species is confined to the northern and western 
arts of the continent, where it is usually found on the sand 
or gravelly banks of lakes or rein from Lake Champlain, 
Robbins, Macrae, and Seneca and Ont tario ie, Sartwell, 
where it meets the eastern, vr. ndtonid, northward to the 
Hudso y » Dru and others, and the Arctic 
ow, Herb. norm. 51, northern Illinois, Vasey, and the upper 
Platte, Hayden, Colorado, Hall & Ha rb. 558, and beyond the 
Rock i 
obtuse at the upper one, 0.30-0.35 line long.—The alpine form 
of this plant, the original type of Villars, is found in our Arc- 
tic regions, and is only a few inches high, bearing very few 
almost black heads, and has the slenderest and longest seeds. 
paler iowets x and fruit. Fries has sent rer wii the same 
trom Sweden, os as J. sylvaticus, and as J. acu es 
and later as J. alpinus, var. insignis, which name may be 
tained for it. 
8, n. sp.: rhizomate crasso horizontali; caulibus 
ates panes erectis cum foliis tereti-compressis; pa- 
nicula supradecomposita patula; capitulis pauci-(6-10)floris 
stramineis; floribus subsessilibus; sepalis lanceolato-subulatis 
theris linearibus filamento sublongioribus ; capsula lineari- 
prismatica acutata uniloculari exserta ; seminibus obovatis 
utrumque apiculatis areis lineolatis reticulatis. 
Forming large tufts in wet sony alors in Clark’s meadow 
[April, 1868.] 
