180 MONOCOTYLEDONS. JUNCEii:. JuucUS. 



3. J. effusnsj scapes very faintly striated (soft), panicle loose very 

 much branched spreading, leaflets of the perianth lanceolate 

 acuminate rather longer than the obovate obtuse capsule. 

 p. 105. — Wet pastures. 



4. J. cotiiilomeratus, scapes very faintly striated (soft), panicle 

 much branched very dense globular, leaflets of the perianth 

 lanceolate acute about as long as the broadly ovate very obtuse 

 capsule, stam. 3. p. 105. — IVet pastures. 



5. i . fil'tformls , scapes filiform, panicle of very few flowers (from 

 near the middle of the culm), capsules rotundato-ovate shorter 

 than the perianth, p. 105. — Stomj margins of Lakes. 



■** Leaves all radical (flowers terminal). 

 6 J. squnrrosus, leaves setaceous (rigid) grooved, panicle terminal 

 elongate compound, capsules elliptical ovate, p. \05.— Moon. 



7 . J . capitatus,\ea.ves filiform (soft) plane or grooved above, heads 

 of flowers sessile terminal shorter than the bractea, leaflets of 

 the perianth acuminato-aristate. p. 106. — Alps. 



8. J. triglumls, leaves linear-subulate compressed, heads terminal 

 erect of about three flowers sessile longer than the membrana- 

 ceous involucre, leaflets of the perianth obtuse longer than the 

 elliptical capsule, p. 106. — Mountains. 



9. J. biglumis, leaves linear-subulate compressed, heads terminal 

 a httle leaning of two flowers one of them pedicellate shorter 

 than the foliaceous involucre, leaves of the perianth obtuse 

 longer than the turbinate emarginated capsule, p. 106. — Alps. 



*** Culms leafy. 

 t Leaves nearly plane, but grooved above. 



10. J. castaneuSy leaves subulate grooved and laterally compressed, 

 heads generally single sessile or pedunculate shorter than the 

 bractea, capsules ovate, cuhn unifoliate. /). 107- — Alps, rare. 



11. J. Irifidus, sheaths fringed those at the base of the culm leaf- 

 less, bracteas foliaceous very long grooved, heads of about 3 

 flowers terminal, culm unifoiiate. p. 107 » — Alps. 



12. i. bulbosus, culm simple leafy comj)ressed, leaves linear-seta- 

 ceous grooved, panicle terminal compound subcymose generally 

 shorter than the bractea, capsules rotundato-ovate longer than 

 the obtuse incurved leaflets of the perianth, p. 107. — Marshes. 



13. J. huj'onius, cuhn dichotomous above panicled, leaves filiform 

 setaceous grooved, flowers solitary unilateral mostly sessile, cap- 

 sules elliptical ovate much shorter than the very acuminated 

 leaflets of the perianth, p. 108. — IVet gravelly places. 



14. J, tenuis, culm above shortly dichotomous panicled, Jeaves 

 linear-setaceous grooved, flowers solitary but approximate most- 

 ly sessile, capsules nearly sphjerical shorter than the very acumi- 

 nated leaflets of the perianth, p. 108. — Mountains , rare. 



i 



