492 juncacejE. (kush familt.) 



4 1. TopiELDi A proper. Sacemns simple, ilte flowers successivdy opening fram 

 the base upward (centripetal) : anthers introrse : seeds without appendages. — 

 Smooth herbs. 



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

 linear ; racemes densely flowered ; stamens slightly cxsertcd ; styles very short. 

 ( T. glaberrima, Macbride. ) — Low pine barrens, in the middle and lower dis- 

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

 long. Flowers white. 



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

 apex doumward (centrifugal): anthers innate: seeds with tail-like apperidages 

 at each end, — Pubescent herbs. 



2. T. pubens, Ait. Stem and pedicels rough-puberulent ; leaves long, 

 linear; racemes (3' -6' long) loosely flowered ; pedicels mostly three in a clus- 

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

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

 -lj°high. Leaves 6' -12' long. 



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

 short, linear-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 l°-lj° high. 

 Leaves 4' - 6' long. 



Order 153. JUNCACEiE. (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 - many-ovuled. 

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

 Seeds anatropous. Embryo minute at the base of the albumen. 



Synopsis. 



1. LUZTJLA. Capsule 1-celled, 3-seeded. Leaves mostly hairy. 



2. JUNOUS. Capsule many -seeded ; the placentse separating with the partitions. Smooth 



herbs, with alternate leaves. 

 8. CEPHALOXYS. Capsule many.seeded ; the placentse united into a 3-winged central col- 

 umn. Stem-leaves nearly opposite. 



1. LUZULA, DC. •Wood-Rush. 



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

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

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



