492 juNCACEiE. (rush family.) 



f) 1. ToFiEl.niA proper. Ixacenies sim/tlr, the Jlourrs surcessivilij Ofxming Jrom 

 the Itase upuxird (centripetal) : aiUlurg introrse : seeds willtoul appendages. — 

 Sinootli herbs. 



1. T. glabra, Nutt. Stem leafy at the base, and sparingly above; leaves 

 linear ; racemes densely flowered ; stamens sliglitly cxscrted ; styles very short. 

 (T. i^^Uxhcrvma, Machridc.) — Low pine barrens, in the middle and lower dis- 

 tricts of North and South Carolina. Oct. — Stem 1° - 2° high. Raceme 2'- 4' 

 long. Flowers white. 



§ 2. Triantiia. Racemes compound; the flowers successively opening from the 

 apex dotcmcurd (centrifufjal) : anthers innate: seeds with tail-like appeudar/es 

 at each end. — Pubescent herbs. 



2. T. pubens, Ait. Stem and pedicels rougli-pubcrulent ; leaves long, 

 linear; racemes (3'-G' long) loosely flowered; pedicels mostly three in a clus- 

 ter, longer than the greenisii-white flowers ; capsule as long as the perianth. — 

 Low pine barrens, Florida to North Carolina, and westward. Sept. — Stem 1° 

 - 1^° high. Leaves 6' - 12' long. 



3. T. glutinosa, Willd. Stem and pedicels clammy-pubescent; leaves 

 short, lincar-sword-shaped ; racemes (1' long) dense-flowered , pedicels 3 - 5 in a 

 cluster, shorter than the yellowish flowers ; capsule longer than the perianth. — 

 Mountains of North Carolina, and northward. June. — Stem 1°-1^° high. 

 Leaves 4' - 6' long. 



Order 153. JUNCACE^. (Rush Family.) 



Tough grass-like herbs, with naked or leafy and jointed stems, flat or 

 terete leaves, and regular cymose-clustered or panicled flowers. — Peri- 

 anth of six nearly equal calyx-like persistent divisions. Stamens 3 or 6, 

 inserted on the base of the sepals : anthers 2-celled, introrse, fixed at 

 the base. Ovary free from the perianth, 1 - 3-celled, 3 - niany-ovuled. 

 Style single : stigmas commonly 3, hairy. Capsule loculicidally 3-valved. 

 Seeds anatroi)ous. Embryo minute at the base of the albumen. 



Synopsis. 



1. LUZULA. Capsule l-cc11ed, 3-seeded. Leaves mostly hairy. 



2. JUNCUS. Capsule many seeded ; the placentae separating with the partitions. Smooth 



herbs, with alternate leaves. 

 8. CEPH.4L0XYS. Capsule many-seeded ; the placentae united into a 3-winged central col- 

 umn. Stem-leaves nearly opposite. 



1. LUZULA, DC. WooD-Rusn. 



Sepals flat. Stamens 6. Style very short: stigmas filifomi, villous. Cap- 

 sule 1-celled, 3-valved, 3-seeded. Seeds erect from the base of the cell. — Ferea- 

 nial herbs, with flat mostly hairy leaves, and umbellate or spiked flowers. 



