CHAPTER VII 



Apogon. 



(Beardless Irises with rhizomatous rootstock.) 



I. LEAVES LINEAR. 



* Stemless, or with stem hardly 

 exceeding 3 inches. 



Tube 5 to 6 in. long, leaves 



J to J in. broad . . I. 

 Tube 3 to 4 in. long, leaves 



W to i ' 1Ut broad . .2. 

 Tube I J to 2 in. long, falls 



with nearly round blade 3. 

 Tube f in. long, falls 

 with oblong blade, violet- 

 scented .-< * 

 ** Stem 3 to 6 in. long. 



Tube I J to 3 in. long, limb 



lilac or purple . . 5. 

 Tube to J in. long, limb 



pale yellow . . .6. 

 *** Stem 6 to 12 in. long. 



( Perianth-tube cylindrical. 

 Tube in. long, flowers 



yellow . . . . 7- 

 Tube \ to \ in. long, flowers 



not yellow, usually lilac 8. 

 j-j- Perianth-tube short and 



dilated. 

 58 



I. UNGUICULARIS 

 I. CRETENSIS 

 I. HUMILIS 



4. I. RUTHENICA 



5. I. MACROSIPHON 



6. I. HARTWEGI 



I. GRANT-DUFFII 



I. DoUGLASIANA 



