JUNCACEAE. 



Vol. I. 



16. Juncus oronensis Fernald. Maine Rush. 

 Fig. 1181. 



Juncus oronensis Fernald, Rhodora 6 : 36. 1904. 



Stems tufted, erect, 24° high or less; basal 

 leaves about half as long as the stem, the blades 

 nearly terete, the sheaths slightly auricled; in- 

 florescence 1-3J' long, the flowers somewhat 

 secund on its erect or narrowly ascending 

 branches; perianth 2"-2i" long, its parts lanceo- 

 late-subulate, the outer slightly shorter than the 

 inner; capsule narrowly oblong, trigonous, trun- 

 cate or slightly emarginate, much shorter than 

 the perianth ; seed about i" long, the tail one- 

 fourth as long as the body. 



In thickets, known only from Maine. 



17. Juncus Greenei Oakes & Tuckerm. Greene's Rush. Fig. 1182. 



Juncus Greenei Oakes & Tuckerm. Am. J. Sci. 45: 37. 1843. 



Stems erect, densely tufted, 8'-2i° high. Basal leaves 

 with slender terete channeled blades one-half or rarely 

 two-thirds the length of the stem; stem-leaves none, or 

 a single one below the inflorescence; panicle io"-2o" high, 

 rather compact, somewhat umbelloid, much exceeded by 

 its lowest bract; perianth il"-ii" long, its parts stiff, 

 lanceolate, sharply acute, with brownish red stripes and 

 apex, the inner shorter; stamens 6, half to two-thirds as 

 long as the perianth; anthers about as long as the fila- 

 ments; style and stigmas very short; capsule one- fourth 

 to one-half longer than the perianth, ovate-lanceolate in 

 outline, truncate at the summit, 3-celled; seed obliquely 

 oblong, i"-i" long, slightly reticulated in about 20-24 

 rows, the areolae nearly square. 



New Brunswick to New Jersey, near the coast ; Michigan, 

 Wisconsin, Iowa, Minnesota and Ontario. 



18. Juncus dichotomus Ell. Forked Rush. 

 Fig. 1 183. 



Juncus dichotomus Ell. Bot. S. C. & Ga. 1 : 406. 181 7. 



Closely tufted, i°-3° high; leaves all basal except 

 those of the inflorescence; sheaths usually reddish, 

 the blades terete, channeled along the upper side, 

 about one-half the height of the stem; inflorescence 

 paniculate, subsecund, ii'-3i' high, usually exceeded 

 by its lowest bract; perianth about 2" long, its parts 

 subulate-lanceolate, green when young, straw-colored 

 when old; stamens 6, about one-half as long as the 

 perianth, the anthers shorter than the filaments; 

 capsule slightly shorter than the perianth, oblong, 

 obtuse, mucronate, 1 -celled, the placentae intruded 

 half way to the center; seed oblong, dark brown, 

 obliquely apiculate, less than 4" long, reticulate in 

 about 14 longitudinal rows, the smooth areolae about 

 as long as broad. 



In dry soil, Connecticut to Florida and Texas, near 

 the coast. Introduced in Jamaica. 



