PLATE XXX. 



1. IRIS GERMANIC A. 



GERMAN IRIS. 



2. IRIS VERSICOLOR. 



VARIOUS-COLOURED IRIS. 



3. IRIS VARIEGATA. 



VARIEGATED IRIS. 



This genus contains plants of the fibrous, tuberous, and bulbous- 

 rooted flowery herbaceous perennial kinds. 



Jt belongs to the class and order Triandria Monogynia, and ranks 

 in the natural order of Ensata. 



The characters arc: that the calyx has bivalve spathes, separating 

 the flowers, permanent: the corolhi six-parted: petals oblong, ob- 

 tuse; the three exterior ones reflex, the three interior upright and 

 sharper; all connected at the claws into a tube, of dift'erent lengths 

 in the different species: the stamina have three awl-shaped filaments, 

 incumbent on the reflex petals: anthers oblong, straight, depressed: 

 the pistillum is an inferior oblong germ: style simple, very short: 

 stigmas three, petal-form, oblong, carinated within, furrowed with- 

 out, incumbent on the stamens, two-lipped: outer lip smaller, emar- 

 ginate: inner larger, biiid, subinflccted: the pericarpium is an ob- 

 long, cornered capsule, three-celled, ihrec-valved: the seeds several 

 and large. 



The species cultivated are: 1. I. pumila. Dwarf Iris; 2. /. su- 

 sifl?m, Chalcedonian Iris; 3. I. F/orenf/a, Florentine Iris; 4. I. hiflora. 

 Twice-flowering Iris; 5. /. aphi/lla, liCafless Iris; 6". I. variegata, 



