438 TRANS. OF THE ACAD. OF SCIENCE. 
Greenii, and, very locally, J. Smithii ; north-westward, ex- 
tending to the Rocky Mountains—J. alpinus and Vaseyi. 
6. Southward, mostly south-eastward and to the Gulf, 
some of the species extending south-westwardly to Arkansas 
and Texas—J. setaceus, dichotomus, repens, Elliottii, scirpot- 
des, caudatus, and asper, the latter only in the most north- 
eastern limits of the region; J. scirpotdes as far north and 
south-west as any of these species; south-westward, J. Buck- 
leyi and a form of J. nodosus (the var. Texanus). 
7. On the Pacific slope, in the low country—J. compres- 
sus, Breweri, patens, arcticus (var.), Bolanderi, and oxrymeris. 
The following extend from the coast to the mountains: J. 
Mertensianus, xiphioides, and phawocephalus, the two former 
spreading eastward to and beyond the Rocky Mountains. 
&. Maritime species, north-east—J. Baiticus, Gerardi, and 
militaris, the two former extending inland along the lakes, 
the two latter also southward; south-east—J. Reamerianus; 
Pacitic coast—J. acutus, procerus, Balticus, sup-sp., and fal- 
catus. 
9. Alpine and arctic species; eastern—J. arcticus, trifidus, 
and stygius; western—J. Drummondii, Hallii, Parryi, tri- 
glumis, castaneus, longistylis, chlorocephalus, saginoides ; 
the two last only on the Californian Alps. J. biglumis has 
been found thus far soley in the highest arctic regions of our 
continent. 
The following table exhibits at a glance the geographical 
distribution of our species: 
Peculiar | Common 
to our with other | Total. 
country. | countries. 
ae WiROLGICOMMtTY iis enlotsieicier setters 
e “ except Pacific region 
“ “ “ G 
and Mississippi Valley.......... 
BEM UCLION VAG Y sleenicictels tein islalnre miciolole 
ANOLE WEG crests crsleieney toleeroiete cine : 
PIS OUGDWALGE a ccck «eect ocibiie7~ aco 
SPACING SlOPOs ci. elesetelles eect tt 
. Maritime species..............2.- 
. Alpine and Arctic species........ 
3 
DONATE whe) 
ipkts oo. ; 
a 
NWAIDODe bh noe 
8 OwnNowrer nde 
17 
OL 
oO 
Nores on toe Nortu AMERICAN SPECIES OF JUNCUS. 
1. J. acurus, Lin., has been found by Prof. Brewer near 
San Luis Obispo, California, “where 1t is abundant in a 
stream in the hills between the town and the landing of the 
same name, a few miles from the sea, growing in dense tufts.” 
