HEXANDRIA.— MONOGYNIA. 15; 



of the perianth mucronate, shorter than the acu 

 minate capsule. 

 HAB. Wet places. July. H . Stem 8— -10 in. high : 

 heads 8—12/., 1 sess. 



*** Stems leafy. 

 t Leaves nearly plane, grooved above. 



7. J. marginatus: leaves flat, smooth; corymb term i 



nal, simple, proliferous ; heads 5 — 10-flowered ; 

 flowers triandrous ; leaflets of the perianth about 

 as long as the obtuse capsule ; the exterior ones 

 and the bracts subaristate. 

 IIAB. Low grounds. Aug. U. Stem 12 — 18 in. 

 high ; leav. mostly rad.; stain. 3. 



8. J. trijidus : sheaths ciliate ; those at the base of the 



stem leafless ; bracts foliaceous, very long, grooved ; 

 heads about 3-flowered, terminal, stem 1 -leaved. 

 HAB. High mountains. Aug. U . Six in. high; 

 leaf nearly term., setae. 



9. J. bulbosus : stem simple leafy, compressed ; leaves 



linear-setaceous, canaliculate ; panicle terminal, 

 compound, subcymose, shorter than the involu- 

 crum ; leaflets of the perianth incurved, obtuse or 

 acute, generally shorter than the ovate, subglobose 

 cnpsule. 

 IIAB. Salt marshes. Aug.— Sept. U . A foot high, 

 wiry ; caps, dark brown. 



10. J. bufonius : stem dichotomous above, paniculate; 

 leaves filiform, setaceous, canaliculate ; flowers 

 subsolitary, sessile, unilateral, leaves of the peri- 

 anth very acuminate, much longer than the ellipti 

 cal ovate capsule. 



HAB. Wet places. June— Aug. 0. Stem 3-^6 in. 

 high ; sheaths membran. 



\\ Leaves rounded or subenmpressed. 



11. J. acuminata*: stem leafy, erect; leaves terou-. 



nodose-articulate ; panicle terminal, compound . 

 heads 3 — G-flo\vered, pedunculate and sessile 

 O 



