83. IRIDACER. 315 
Order LXXXTII. IRIDACEZ. 
Perianth tubular, 6-parted, petaloid, in 2 often unequal rows. 
Stam. 3, epigynous, opposite the outer segments of the perianth. 
Anth. bursting outwards. Ovary inferior, 3-celled. Style 1. 
Stigmas 3, dilated, often petaloid. Caps. 3-celled, 3-valved, 
valves bearing the dissepiments in the middle. Seeds numerous. 
Embryo cylindrical, inclosed in horny or fleshy albumen. Ra- 
dicle pointing towards the hilum. 
1. SisyrincHium. Perianth 6-cleft ; segments nearly equal, 
patent. Stigmas 3, involute, filiform. Filaments connate 
below. 
2. Inrs. Perianth 6-cleft; alternate segments reflexed. 
Stigma 3-parted, petaloid, covering the stamens. 
3. TRICHONEMA. Perianth regular, 6-cleft ; segments spread- 
ing. Stigmas 3, bifid; lobes slender. 
4. Crocus. Perianth regular, funnelshaped with a long tube ; 
limb bellshaped. Stigma 3-fid or 3-parted; lobes widening 
upwards. 
1. Sisyrincuium Linn. 
1. S. anceps(Lam.); scape 2-edged nearly simple nearly leaf- 
less, spath about 4-flowered “longer than the flowers,” segments 
of perianth emarginate mucronate.—Redoute Lil. v. 282.—St. 
about 1 foot high. L. grasslike. Spath with lanceolate valves, 
shorter than the fl. in my Irish specimens. Perianth blue; seg- 
ments narrowed below.—Woods near Woodford, Galway. Mr. 
Jas. Lynam. P. VII. 
2. Iris Linn. 
1. I. Pseud-acorus (L.); 1. swordshaped, st. round, perianth 
beardless, its imner segments narrower and shorter than the 
stigmas.— FE. B. 578. R. ix. 344.—Fl. yellow.—“ 8. citrina; fi. 
smaller, segments of the perianth narrower, the inner ones more 
acute, st. taller. Fl. paler.” Hook.—Wet places. 8. Ayrshire. 
P. VI. VIL. Yellow Flag. 
2. I. fetidissima (L.); 1. swordshaped, st. compressed, peri- 
anth beardless, its mer segments about as long as the stigmas. 
—E. B. 596. R. ix. 347.—Herb green, not glaucous, yielding an 
unpleasant smell when bruised. Fl. lead-coloured or bluish, 
rarely yellow.— Woods and thickets. P. VI. VII. 
[*I. tuberosa (L.); 1. tetragonal, segments of the perianth 
acute, root tuberous. Penzance. Cork.—E. B. S. 2818.] 
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