Seed Plants, Ferns, Fern Allies of the Austin Region 19 



Yucca rupicola Scheele. Spanish Bayonet. Bear Grass. 



Abundant on dry hills. The leaves are margined by a row of 

 fine yellow teeth. 



Yucca Arkansana Trelease. 



Smaller than the preceding. The leaves have white-fibrous mar- 

 gins. Dry ground along I. & G. N. railroad tracks. 



Southern prairie states. 



SMILACEAE Smilax Family (Under Liliaceae) 



Smilax Bona-nox L. Green-briar. Cat-briar. Stretch-berry. 



Very common in woods and thickets. A climbing prickle armed 

 vine. 



Southeastern United States to Kansas and Mexico. 



AMARYLLIDALES (Under Liliales) 

 LEUCOJACEAE (Amaryllidaceae) Amaryllis Family 



Atamosco texana Greene. (Zephyranthes texana Herb.) Atamosco 



Lily. Stagger Grass. Amaryllis. 



In the open post-oak woods. Not very common. Flowers yel- 

 low, stems about 1 to 2 dm. high. Insane Asylum grounds and in dry 

 rock soil generally. 



Cooperia pedunculata Herb. Rain Lily. 



Abundant in open places, blooming several days after a rain. 

 This species blooms more commonly in the spring. The flowers are 

 white. 



The bract is attached about one-fourth inch below the ovary. 



A plant of the Texas prairies. 



Cooperia Drummondii Herb. Rain Lily. 



Similar in habit and habitat to the preceding species, but blooming 

 more abundantly in the fall. Flowers smaller, stems and leaves 

 more slender and the bract is attached immediately below the ovary. 



Texas prairies. 



IXIAQEAE (IRIDACEAE) Iris Family 



Nemastylis acuta Herb. 



Abundant on dry hillsides and level uplands of the Edwards Pla- 

 teau. The flowers are four or five centimeters in diameter, from 

 deep blue to white. 



A prairie plant of the southern central states. 



