Pl.eiid.ph, 20. IRIDE^. 134. Iris. 197 



Iris sylvestris, quam Xyriin voc.int, Rail Syn, 375, 3. 



Xiris, Ger. em, 60. 



Xiris sen Spatula foetida, Park. 256. 



Iris fcetidissima, Lin. S. P. 57. 



Iris foetida, Saliib. Prodr. 44. » 



Slinking gladdon Spurge wort. 



Woods and hedges ; perennial; June and July. 



Stem 2 feet hioh, half round, 2 or 4-flowered, scarcely 

 higher than the leaves ; leaves dark green ; perigonium dull 

 grey blue, streaked or veined with black ; outer lobes 

 roughly folded beneath. — Juice of the root errhine ; root in 

 infusion or decoction purgative, leaving a costiveness like 

 rhubarb; seeds diuretic. 



b. Bulb tunicated; leaves channelled ; lohes of the 

 perigonium beardless. Xyphium. 



3. Iris variabilis. Changeable fleur-de-luce» 



Scape 2-flowered ; lobes of the perigonium as narrow as 

 the lobes of the style; ovary round, 3-sided. 



Iris bulbosa Anglica, Ger. em. 99, 2. 

 Iris Xiphium, Lin. S. P. 58. 

 Xyphium vnlgare, Miller Diet. 

 Iris variabilis, J acq. Coll. 2, 139. 

 Iris coronaria, Salisb. Prod. 45. 

 Onion Jleur- de-luce. 



River sides ; perennial ; July. 



Leaves channelled, awlshape, a little longer than the stem; 

 perigonium purplish blue; stem sometimes one-flowered. 



Fam. XVI. 21. ORCHIDEiE. Jussieu. 



Perigonium petaloid, adherent to the ovarj^ 6-sepaled ; 

 sepales irregular, in two series, often variously soldered ; 

 outer series of 1 odd sepale and 2 alike; inner of 2 sepales 

 alike and one odd one called the lip; anthers 1 or 2, 

 sessile, on the gymnostemiuni ; pollen agglutinated into a 

 determinate figure; gymnostemiuni columnar; gynizus va- 

 riously placed; pericarpium 1 -celled, 3-valved, opening la- 

 terally by the ribs; placentaria 3, on the middle ot the 

 valves; seeds numerous, very minute; spermodermls mem- 

 branaceous ; perisperm fleshy ; corc/dum at the base.— Plants 

 herbaceous ; root tuberous, gingiberaceous or fascicled ; 

 5fape simple; leaves sessile, ribbed lengthways, sheathing at 

 bottom i Jlowers spiked; brae lea 1, at the bottom of each 

 flower. 



