Seed Plants, Ferns, Fern Allies of the Austin Region 29 



CARYOPHYLLACEAE Pink Family 



Silene antirrhina L. Sleepy Catchfly. 



Abundant on roadsides, University campus, etc. Easily recog- 

 nized by the sticky secretions on the stems in which very small in- 

 sects become entangled and die. 



Widespread in the eastern part of the continent. 



RANALES 

 CERATOPHYLLACEAE Hornwort Family 



Ceratophyllum demersum L. Hornwort. 



Barton Creek. A submerged acquatic plant, with stiff, finely di- 

 vided leaves in whorls. 



Nearly throughout North America. 



RANUNCULACEAE Crowfoot Family 



Adonis annua L. 



Waste and cultivated ground. 



Introduced from Europe and escaped from cultivation in the 

 United States. 



Anemone decapetala Ard. 



Open woods and meadows. Abundant in valleys. One of our most 

 abundant early spring flowers. 



Central and southern states. Central America and Mexico. 



Aquilegia canadensis L. Red Wild Columbine. 



Moist shaded bluffs in the Edwards Plateau, in ravines where the 

 soil is rich. One of the most beautiful flowers of the region. Abund- 

 ant along Bull Creek and its tributary ravines. 



Widespread in the northern and eastern states. 



Aauilegia chrysantha Gray. Yellow wild Columbine. 



Moist shaded slopes in the Bull Creek region. Less common than 

 the preceding. The flowers are yellow and the spurs of the petals 

 are more than two inches long. 



Arizona to Texas. Common in moist ravines in the mountains of 

 Western Texas. 



Clematis Drummondii T. &. G. Virgin's Bower. Granddaddy Gray 

 beard. 



A vine, abundant on roadsides and open places, particularly on the 

 river flood plain. Well known in the fall for its white plumed fruits. 



Texas to Arizona and in Mexico. 



