128 
The Ohio Naturalist. 
[Vol. XIII, No. 6, 
5. Juncus bufonius L. Toad Rush. An annual herb, 8 in. 
high, with terminal inflorescence and non-septate leaves. Flowers 
scattered singly along the one sided and usually dichotomously 
branched inflorescence; leaf blade flat; stamens (i or 3; capsule 
trilocular. Williams, Lucas, Lorain, Licking. 
6. Juncus monostichus Barth. One-ranked Rush. Plant 
12-20 in. high; culms compressed; inflorescence terminal; leaves 
basal and involute in drying; auricles scarious; inflorescence 
exceeded by the bract; flowers secund. Trumbull County. 
7. Juncus aristulatus Mx. Small-headed Grass-leaf Rush. 
Inflorescence terminal, usually composed of from 10-20 heads, 
each head of from 2-5 flowers; stamens exserted and persistent in 
the fruit; capsule rarely exceeding the calyx. Fairfield, Summit. 
8. Juncus marginatus Rostle. Grass-leaf Rush. Inflores¬ 
cence terminal, of 2-20 heads, each with 5-10 flowers; flowers not 
subtended by bractlets; capsule rarely exceeding the calyx; 
stamens exserted and persistent in the fruit. Cuyahoga County. 
9. Juncus richardsonianus Schult. Richardson’s Rush. 
Inflorescence in terminal heads with fasicles of leaves; leaves 
septate, upper cauline leaves with blades; sepals blunt; stamens 
0; seeds blunt. Cuyahoga County. 
10. Juncus articulatus L. Jointed Rush. Leaves septate, 
upper cauline leaves with blades; inflorescence in terminal, spheri¬ 
cal glomerules; sepals acuminate; stamens 6; seeds blunt. Cuya¬ 
hoga County. 
11. Juncus torreyi Cov. Torrey’s Rush. Leaves septate, 
upper cauline leaves with blades; inflorescence in terminal, spheri¬ 
cal glomerules; petals shorter than the sepals; stamens 0; seeds 
blunt. Cuyahoga, Adams, Madison, Wood and Erie. 
12. Juncus nodosus L. Knotted Rush. Leaves septate, 
upper cauline leaves with a blade; inflorescence in terminal, 
spherical glomerules without fasicles of leaves; involucre exceeding 
the inflorescence; sepals subulate; stamens G; petals equaling or 
exceeding the sepals. Madison, Cuyahoga, Erie, Franklin. 
13. Juncus brachycephalus Engelm. Small-headed Rush. 
Leaves septate, with well developed blades; inflorescence in ter¬ 
minal, 2-5 flowered heads; stamens 3; seeds with short caudate 
tips. Erie, Cuyahoga, Champaign, Franklin, Madison. 
14. Juncus acuminatus Mx. Sharp-fruited Rush. Leaves 
septate, blades of the lower leaves 4-8 in, long; inflorescence 
terminal, branches of 5-50 heads, rarely more or less, heads 3-20 
flowered; petals and sepals nearly equal; stamens 3; seeds tipped 
at each end. Ashtabula, Lake, Lorain, Cuyahoga, Huron, 
Portage, Tuscarawas, Knox, Union, Licking, Auglaize, Carroll, 
Champaign, Fairfield, Adams, Brown. 
