April, 1913.] Liliales of Ohio. 129 



15. Juncus canadensis J. Gay. Canada Rush. Leaves 

 nodose, basal leaves disappearing before flowering time; sheathes 

 with auricles, inflorescence in terminal, crowded heads, with 5-50 

 flowers to the head; stamens 3; capsule mucronate, reddish brown, 

 longer than the perianth; seeds with a definite tail. Cuyahoga, 

 Licking, Auglaize, Madison, Geauga. 



16. Juncus scirpoides Lam. Scirpus-like Rush. Leaves 

 septate, blade of the uppermost leaf longer than the sheath; 

 inflorescence in densely flowered heads; stamens 3; capsule atten- 

 uate, exceeding the calyx; seeds blunt. Erie Count3\ 



2. Juncoides Adans. 



Perennial plants, glabrous or hairy, with grass-like leaves and 

 closed leaf sheathes. Inflorescence an umbel, panicle or cor\^mb; 

 flowers with bractlets; stamens 6; ovulary unilocular, three- 

 seeded. 



1. Flowers occurring singly or in twos at the ends of the branches of the 



inflorescence. /. pilosum. 



2. Flowers occurring in glomerules. /. campestre. 



1. Juncoides pilosum (L.) Ktz. Hairy Wood-rush. A 

 tufted herb, often stoloniferous. Stems erect, 2-4 leaved, 6-12 

 in. high; leaf blades flat, acuminate; inflorescence an umbel, each 

 pedicel 1 or 2 flowered ; perianth brown with hyalin margins ; seeds 

 hooked. Lucas, Cuyahoga, Trumbull, Mahoning, Hocking. 



2. Juncoides campestre (L.) Ktz. Common Wood-rush. 

 Tufted herb, 4-20 in high; stems 2-4 leaved; leaf blades blunt, 

 pubescent, inflorescence an umbel, lower bracts leaf-like, acumi- 

 nate; flowers brown, capsule obovoid or broadly oblong. In 

 woods. General. 



Xyridaceae. Yellow-eyed-grass Family. 

 Tufted, rush-like herbs with narrow, two-ranlvcd leaves and 

 leafless scapes. Flowers in heads, bisporangiate, mostly yellow, 

 solitary and sessile in the axils of bracts ; petals 3 ; sepals 3, unequal, 

 one large and membranous and 2 small and keeled; stamens 6 or 

 3 ; ovulary tri-or unilocular ; ovules orthotropous ; fruit a capsule ; 

 endosperm mealy. 



Xyris L. Yellow-eyed-grass. 



Perennial herbs with the flowers single in the axils of coriaceous 

 scale-like bracts, which together fonn a head. Stamens 3 fertile 

 and 3 sterile; capsule unilocular, many seeded. 



1. Xyris flexuosa Muhl. Slender Yellow-eyed-grass. An 

 herb 5-20 in. high, with a slender, straight or slightly twisted 

 scape. Leaves flat, becoming twisted; inflorescence globose or 

 oblong or obtuse; lateral sepals linear and fringed with short 

 hairs on the wingless keel. In bogs. Portage, Geauga. 



