FLOEA OF TEXAS. 



SERIES I. 



PH^NOGAMOUS or FLOWERING PLANTS. 



Class I. Dicotyledons. 

 Sub-class L Angiosperms. 



Division I.— Polypetalous Exogenous Plants. 



1. Crowfoot Family. Order, RanunculacetE. 



Serbs, sometimes woody climbing plauts, with colorless juice, sharp or 

 acrid to the taste. Leaves mostly divided, exstipulate, with half-clasping 

 petioles. Parts of the Jloive7' all separate and distinct, and inserted on the 

 receptacle. Petals often wanting. Stamens more than 12. Pistils more 

 than one (except in larkspur, baneberry, and bugbane), and entirely sep- 

 arate, except in fennel-flower, in fruit becoming akenes or pods, or some- 

 times berries. 



SYNOPSIS OF THE GENERA. 



Tribe I. Clematideae. Sepals valvate in the bud, 

 colored. Petals stamen-like or none. Style elongated, 

 persistent. Fruit an achenium. — ^Chiefly vines. Leaves 

 opposite. 



1. Atragene. Petals small and stamen-like. 



2. Clematis. Petals none. 



Tribe IL Anemoneae. Sepals imbricated in the bud, 

 colored. Petals none. Ovules solitary. Frtiit an ache- 

 nium. — Herbs. Floral leaves often whorled, forming an 

 involucre. 



3. Anemoxe. Involucre leaf-like and distant from the 

 long peduncled flowers. 



4. Hepatica. Involucre calyx-like and close to the flower. 



5. Thalictrum. FIo2vers panicled and without an 

 involucre. Acheiiia ribbed or inflated. Leaves compound. 



6. Trautvetteria. Flowers corymbed. Involucre 



