(283) 



1. S. BELLUM Watson. Filaments united to 

 the top; flowers blue with yellow center. — 21. 

 Common. Summer. 



2. S. Californicus Ait. Filaments united 

 only at the base; flowers yellow. — U . Colma. 

 Saucelito. Summer. 



2. Iris L. 



Perigonium tubular at the base; segments 

 equal, but diftering in shape; the 3 external 

 reflexed; the 3 internal erect. Stigma 3-parted, 

 petaloid. — U- 



1. I. MACEOSIPHON Torr. Tube of the peri- 

 gonium elongated, cylindrical; stem leafy; 

 capsule ovoid, acute at each end; flowers varia- 

 ble in color, but most frequently lilac -purple. 

 Marin County. Si3ring. 



2. I. DouGLASiANA Herbert. Tube of the 

 perigonium elongated, cylindrical; stem leafy; 

 capsule oblong, 3-gonal; flowers pale lilac, ex- 

 ternal sepals with white center, lined with 

 purple. — Common. Spring. 



3. I. LONGiPETALA Herbert. Tube of the 

 perigonium short and funnel-shaped; stems al- 

 most naked; flowers lilac, external sepals 

 white, veined with violet; midrib yellow. 

 Common. Spring. 



Oeder 3. COKONARI^. Perigonium 6- 

 parted in difterent degrees. Stamens 3 or 6. 

 Ovary superior. 



