218 157. Butomus. 23. BUTOMACE^. Pl.end.pJi. 



157. BUTOMUS. Theophrastus. Gladiole. 



Perigonium 6-sepaled; outer sepal es smaller; stamens 9 1 

 ovaries 6, longly beaked ; pericarp twisted inwardly, opening 

 at the edge ; valves joined side by side at the base ; seed 

 linear, oblong, straight, round, streaked lengthways; cor- 

 culiini straight. — Rhizoma tuberous, creeping ; leaves angu- 

 lar ; scape round. 



Butomus umJjellatus. Umbelled gladiole. 



Leaves long, linear, 3-sided. 



Butornns, Rati Syn. 273, 1. 



Gladiolus palustris Cordi, Ger, em. 29, C. 1. 



Juucas floridus. Park. 119T. 



Butomus umbellatus, Lin. S, P. 532. 



Floisering rush. Water gladiole. 



Ditches and river-sides ; perennial ; June and July. 

 Leaves smooth, flat above, acute; scape ? to 4 feet highj 

 flowers reddish, beautiful. 



Fam. XIX. 24. JUNCAGINE^. Richard. Alisma- 

 cearum pars, De CandoUe. Juncorum 

 pars, Jussieu. 



Perigonium herbaceous or nearly petaloid, 6-sepaled ; 

 stamens 6;Jilaments short; ovaries 3 ov 6, 1 -celled ; stig- 

 mata 3 or 6, sessile ; camares 1 or 2-seeded ; seeds basillary, 

 upright ; perisperm ; corculum straight. — Root fibrous ; 

 leaves linear, rushlike, sheathing at the base j flower spiked 

 or racemose. 



Sepales equal ; clarion depressed ; 

 camares inflated, spread Scheuchzeria. 158. 



Sepales 3 inner petaloid; etarion upright; 

 camares pendulous, connivent Triglochin. 159. 



I. 15S. SCHEUCHZERIA. Linnaeus. Scheuchzer^ 



Perigonium herbaceous, 6-sepaled ; sepales equal, per^ 

 sistent ; stamens 6 ; fllaments short ; anthers linear, long ; 

 ovaries 3 or 6, compressed ; stigma sessile, lateral ; camares 

 inflated, reflexed, distant; seeds 1 or 2, oblong. — Root 

 scaly, creeping ; leaves few, rushlike ; scape round ; spike 

 loose ; flowers greenish ; bractece at the bottom of the pe- 

 duncle. 



Scheuchzeria palustris. Marsh scheuchzer. 



Leaves bristlelike, channelled; raceme upright, few- 

 flowered. 



