304 
Juncus scirpoides var. echinatus Engelm. Trans. St. Louis Acad. 
2: 468. 1868. 
Juncus scirpoides Carolinianus Coville, Mem. Torr. Bot. Club, 
5: 107. 1894. 
Plant 30 to 100 cm. high; blade of the uppermost cauline 
leaf only in very vigorous specimens exceeding I or 2 cm. in 
length ; fruiting heads 8 to 12 mm. in diameter; perianth reddish 
brown above; stamens one-half to two-thirds the length of the 
perianth, the anthers included; capsule equaling the perianth, its 
valves united above in dehiscence. 
Specimens have been examined only from the southern coast 
region from North Carolina to Florida, although the plant was 
accredited by Dr. Engelmann with a range as far north as Mary- 
land. 
2. JUNCUS SCIRPOIDES Lam. 
Juncus scirpoides Lam, Encycl. 3: 267. 1789. 
Juncus polycephalus tenuifolius Michx. Fl. Bor. Amer. 1: 193. 
1803. 
Juncus echinatus Muh\, Descr. Uber. Gram. 207. 1817." 
Juncus echinatus “ Muhl.;”’ Ell. Bot. S. C. & Georg. 1: 410. 
18172 
Juncus macrostemon J.Gay ; Laharpe Monog. Junc. 140. 1825. 
Juncus scirpoides var. macrostemon Engelm. Trans. St. Louis 
Acad. 2: 467. 1868. Includes the forms macrostylus and 
brachystylus. 
Juncus scirpoides genuinus Buch. Monog. Junc. 323. 1890. 
Plant 20-70 cm. high; leaf-blades terete, 2 mm. or less in 
thickness, with perfect septa; fruiting heads 8-11 mm. in diame- 
ter; perianth 2.5-3.5 mm. long, green throughout ; stamens equal- 
ing the inner perianth parts, the short anthers exserted ; capsule 
exceeding the perianth, its valves united above in dehiscence. 
A species of the coastal plain from New Jersey and eastern 
Pennsylvania southward through the Atlantic States to Florida 
and westward to Texas. 
1Buchenau (Monog. Junc. 323) has recorded his critical examination of flowers 
from Muhlenberg’s specimen, 
2 There is nothing to indicate that Elliott distinguished ¥. megacephalus from 
7. scirpoides, He undoubtedly included both, if indeed he ever saw the former, 
under F. echinatus. 
