(32) 



3. Trillium.— Sepals 3. Petals 3. Stig- 

 mas 3, almost sessile. 



4. Lythrum. — Calyx tubular, 8-12-dentate. 

 Petals 4—8. 



5. Trientalis. — Calyx 6-7 cleft. Corolla 

 6-8 parted, spreading. Capsule 6-8= 

 valved, 1-celled. Placenta central. 



6. Frankenia. — Calyx tubular, 5-cleft. Pet- 

 als 5, unguiculate. Capsule 1-celled, de- 

 biseeut by valves. Ovules few, inserted 

 on parietal placentae. 



B. Floral parts incomplete. Perigonium corol- 

 line, gamosepalous. 



1. Muilla (Hespsroscordum) Perigonium 

 deeply 6-parted, campanulate. Stamens 

 inserted on the base of the perigonium. 



2. Brodic^ea. — Perigonium 61obed, funnel- 

 shaped. Stam3n3 inserted on the throat, 

 alternately sterile. 



3. Tiiteleia. — Perigonium 6-lobed, salver- 

 shaped. Stamens inserted alternately 

 on the throat and on the middle of the 

 tube, 



C. Floral parts incomplete. Perigonium coroU 

 line, 6-sepalous. 



a. Style 3-cleff. or 3 sessile stigma^^. 



1. Frit'illaria. — Sapals of perigonium with 

 a nectarium at the base. 



