( 23G ) 



6. E. FLAMMULA L. Leaves entire; akenes 

 smooth; stamens more than 10; petals bright 

 yellow. — li. Marin County. Summer. 



7. E. PUSILLUS Poir. Leaves entire; akenes 

 granulate; stamens never more than 10; petals 

 yellow. — 0. Inundated places near Napa. 

 Summer. 



8. E. LoBBii Hiern. Aquatic; leaves float- 

 ing, 3-lobed; submerged leaves 0; styles long, 

 filiform, with small terminal stigma; petals 

 white with yellow claws. — li. Olema. Sum- 

 mer. 



9. E. AQUATiLis L. Aquatic with submerged 

 capillary, multifid leaves; styles subulate, 

 not longer than the ovar}^, introrsely stigma- 

 tose; petals white with yellow claws. — If. 

 Presidio. Marin County. Summer. 



All perennial species possess an acrid, pois- 

 onous principle, which disajiypears by drying, 

 so that the plant, avoided by animals in its 

 growing state, becomes liarmless when made 

 into hay. 



6. Myosurus L- Mousetail. 



Sepals 5, calcarate. Petals 5, on filiform 

 claws. Fruit cc-akenes, crowded on an elon- 

 gated, spike-like receptacle. — O . D .varf plants 

 with radical leaves. 



1- M. MINIMUS L. — Niles. Spring. 



