ENGELMANN—NORTH AM. SPECIES OF JUNCUS. ATT 
the diameter of the seed, often only half as long; 7-8 ribs 
visible, usually very distinct, with cross-striation and an ap- 
proach to reticulation.—A slender form is distributed in Hb. 
n. 80 and 81, a more rigid one is n. 82, but both run to- 
ther. 
Var. 6 is the most polymorphous ak = the forms of this 
species; it is stouter, taller and mo id than the other 
species. The panicle 3-6, or sometimes as muc r 10, 
inches long, and 2-5-7 inches wide, with potions oly opicane 
but rarely “horizontal dea is either much branched and bears 
saabiter (5-8-20-flowered) but more numerous heads, or it is 
more simple, with ‘asad (30-40 and in some Delaware speci- 
mens even 80 or 90-flowered) and fewer heads; it is usually 
loose, but sometimes quite compact; specimens from South 
oe pele norm. &5, have large green heads in a de- 
mpound panicle. "Flower rs 11-2 pein long, greenish, at 
tole with the sate light brown; sepals generally 1-3 
or sometimes 5-nerved, very acute, or rarely somewhat ob- 
se usually quite unequal, or, as an exception, nearly equal 
n lensth ; ; capsule prismatic, and usually obtusish and mu- 
ontiants, as long as or mostly longer than the sepals, some- 
times acutate and elongate. Seeds slender, and either large 
with shorter appendages, or smaller and thinner and with 
with branched heads, the single branches being elongated into 
spikes, was found by A. Commons near Salisbury, Maryland 
see p. 427). Mr. Ravenel has collected this species in South 
Carolina with often more than 3 stamens; Hb. n. 87.—This 
variety is the plant which by most American hnakinines has 
been taken for Meyer’s J. paradoxus ; re I have shown above 
(p. 462) that Meyer's plant, sepalis “exterioribus longioribus,” 
oad e 
sepals of which are shorter. Meyer’s name was not given 
reference to the curious seeds, but to the he frequent foliaceous 
excrescences of his plant, which seem to be quite rare, if not 
unknown, in the present species. 
45. J. caupatus, Chapm. Fl. 8. St. 495: caulibus (2-3- 
Lene er oma —— aonioges rigidi abe ibu us; pa- 
