April, 1913.] Liliales of Ohio. 125 



3. Tradescantia pilosa Lehm. Zigzag Spiderwort. A stout 

 herb, commonly flexuous, often branched, more or less puberulent 

 or short-pilose; leaves broadly lanceolate, acuminate at the apex, 

 darker green above than below; pedicels and calyx pubescent and 

 more or less glandular, rarely somewhat glabrous; petal lilac- 

 blue. In thickets and on shaded hillsides. Montgomery, Cler- 

 mont, Hamilton. 



2. Commelina L. Day-flower. 



Succulent, branching herbs, with short-petioled or sessile 

 leaves. Inflorescence a sessile cyme subtended by spathe-like 

 bracts; sepals slightly united, of unequal size; petals unequal, 2 

 large and one small; stamens 3 or 2 fertile and 3 or 4 sterile. 



1. Commelina virginica L. Virginia Day-flower. A 

 branched somewhat pubescent or glabrous herb. Leaves lanceo- 

 late, or linear-lanceolate, acuminate at the base; sheathes inflated, 

 often pubescent; inflorescence a c^mie surrounded by 2 bracts; 

 corolla showy. In moist soil. Montgomery, Clennont, Lake. 



JuNCACEAE. Rush Family. 



Perennial or sometimes annual, grass-like, usually tufted 



herbs. Leaves with sheathes either open or closed; inflorescence 



a panicle, cyme, corymb, or umbel, spike or head, or rarely, 



flowers single; flowers small, regular, with or without bracts; 



perianth of 6 glumaceous segments; stamens 6 or 3 or rarely 5 or 



4; carpels 3; fruit a loculicidal capsule, seeds many or 3; endosperm 



fleshy. 



1. Leaf-sheathes open, seeds many, plants never hairy. Junciis. (1) 



1. Leaf-sheathes closed, seeds three, plants usually hairy. Juncoides. (2) 



1. Juncus L. Rush. 



Usually perennial herbs with leaf-bearing stems, and open 

 leaf sheathes. Leaves grass-like or channeled; inflorescence a 

 panicle or corymb, often unilateral, or congested in heads; stamens 

 6 or 3, ovulary unilocular or trilocular; seeds several or many, 

 sometimes caudate. Commonly found in swamp habitats. 



