ENGELMANN—NORTH AM. SPECIES OF JUNCUS. 491 
which otherwise exhibits the same structure, always marked 
with regular transverse reticulation. 
Pag. 443. J. effusus. Several forms are distributed in 
Herb. norm.; the common one from Michigan, 7, and South 
Carolina, 8, and an unusually slender one, 9, from the Cali- 
fornian mountains, where the common one also grows. The 
western botanists find in the saltmarshes near San Francisco 
a brown flowered variety, which may be distinguished as var. 
bruneus,; inflorescence somewhat looser and fastigiate, Herb. 
n. 10, or more compact, ib. 11; other differences, if they ex- 
ist, have escaped me. 
J. patens was distributed by Dr. Kellogg in Herb. norm. 
in two forms; 12 is a tall plant with loose panicles of green 
flowers, 13 a low (8-15 inches high) rigid form with a more 
compact darker colored inflorescence. 
Pag. 444. J. Smirum: rhizomate longe repente; caulibus 
(14-2-pedalibus) gracilibus teretibus farctis siccis striulatis 
basi vaginis fusco-rufis breviter aristatis instructis; panicule 
laxee vix composite pauciflore spatha longissima; sepalis 
zequilongis, exterioribus laneeolatis acutatis, interioribus obtu- 
sis stamina 6 fere duplo superantibus; antheris oblongis fila- 
mentum equantibus; ovario ovato in stylum brevem attenu- 
ato cum stigmatibus eo zquilongis fere incluso; cetera vide 
p. 444. 
Found abundantly by Messrs. Smith, Porter and Leidy on 
Broadmountain, Pennsylvania (Herb. norm. 15), where it 
had been discovered by the former the year before ; also in 
Rausch’s Gap, Lebanon county.—The very complete speci- 
mens sent by these gentlemen enable me to complete the 
history of this, thus far, very rare plant, which proves to be 
intermediate befween J. Balticus and J. filiformis, with the 
rootstock of the former and the inflorescence of the latter, 
and with almost the seeds of J. arcticus. Seeds 0.32-0.38 line 
long, with short and broad appendages and a distinct rhaphe, 
distinctly but somewhat irregularly reticulate and partly also 
lineolate ; epidermis easily removed after soaking. 
J. setaceus ; a larger and a smaller form from South Caro- 
lina have been distributed in Herb. norm. 14 by Mr. Ravenel ; 
internodes of the creeping rhizom short, stems cespitose. 
Pag. 445. J. arcticus is more closely allied with /. Balli- 
cus and Smithii than with J. Drummondii; more specimens 
obtained from the coasts of the north Pacific show that the 
var. Sitchensis is not rare there, and extends to Kamschatka; 
its characters hold their own well. 
J. Drummondii, Californian Alps, Bolander, Hb. norm. 16. 
Pag. 446. J. Parryi; a form with the interior sepals ob- 
tuse and much shorter than the exterior ones, which are as 
long as the capsule, was found by Mr. Bolander on alpine 
meadows, California. 
[April, 1868.] 39 
