CALLITRICHE FAMILY 37 



LIMNANTHACEAE FALSE MERMAID FAMILY 



Sepals 2-5, slightly united at base, petals 2-3, separate, alternating with 

 2-3 glands, stamens 4-6, pistils 2-3, partly united, stigmas 2-3, fruit deeply 

 2-3-lobed, or the carpels separate, fleshy, not splitting; flowers solitary, 

 axillary, perfect, white to pink; annual herbs with alternate, pinnately- 

 divided leaves. 



FLOERKEA Willdenow 1801 

 (Named for Floerke, a German botanist) 

 Characters of the family. 



Stems weak, 4-15 in. long; leaves .5-3 in. long; flow- 

 ers 2-3 mm. wide F. proserpinacoides 



CALLITRICHACEAE CALLITRICHE FAMILY 



Sepals none, petals none, stamens 1, pistil 1, ovary 4-celled, styles 2, 

 fruit flattened, lobed, the lobes more or less winged, separating at maturity 

 into 4 1 -seeded carpels; flowers solitary, axillary, perfect or monoecious; 

 aquatic herbs with slender stems and opposite entire spatulate or linear 

 leaves. 



CALLITRICHE Linne 1753 WATER STARWORT 

 (Gr. kalli-, beautiful, thrix, hair, from the hair-like stems) 



Characters of the family. 



1. Submerged; all leaves linear to oblong; bracts 



none C. bifida 



2. Amphibious; air leaves spatulate or obovate ; 



bracts present C.palustris 



GERANIALES GERANIUM ORDER 

 GERANIACEAE GERANIUM FAMILY 



Sepals 5, petals 5, stamens 5-10, ovary 5-celled, lobed, ovules 1 or 2 in 

 each chamber, stigmas 5, fruit a capsule splitting into 5 nut-like parts ; flow- 

 ers solitary or clustered; annual, biennial or perennial herbs with alternate 

 or opposite divided or compound leaves. 



1. Stamens with anthers 5 ; leaves pinnate ERODIUM 



2. Stamens with anthers 10 ; leaves palmately divided 



GERANIUM 



