Seed Plants, Ferns, Fern Allies of the Austin Region 65 



Physalis keterophylla Nees. Ground Cherry, Jerusalem Cherry. 

 Rich moist soil. 

 Eastern states and Canada to Colorado and Texas. 



Physalis mollis Nutt. Ground Cherry. Jerusalem Cherry. 

 Common in rich soil in valleys and on shaded hills. 

 Southwestern states and in Mexico. 



Solatium carolinense L. Horse Nettle. 



A somewhat thorny weed, abundant in fields, roadsides and waste 

 places. With large, rough. Icbed leaves, blue flowers, and globular, 

 yellow fruits nearly an inch in diameter. 



Eastern and central states. 



Solatium eleagnifolium Cav. Blue Nightshade. 



One of our most common weeds. Abundant everywhere in fields, 

 roadsides, and waste places. Differing from the preceding in its 

 narrower, whitish leaves and smaller fruits. It is either unarmed 

 or with slender prickles. 



Solarium heterodoxum Dunal. (Not named in Small.) 



Found on sand banks of the Colorado River. Not common. 

 A west Texas spcies very similar to S. rostratum. 



Solatium nigrum L. Common nightshade. Black Nightshade. 

 Common in rich ground in ravines and valleys. 

 Widely distributed in North America and other countries. 



Solaww rostratum Dunal. Buffalo Bur. Prickly Solanum. Tread 

 Softly. 



Abundant in open ground and waste places. One of our most 

 common weeds. The flowers are yellow, the whole plant very thorny 

 and the fruit enclosed in a prickly calyx. 



Central states and Mexico. 



Solanum Torreyi A. Gray. Torrey's Nightshade. 

 Similar to S. carolinense, but with larger berries. 

 Southern central states. 



Solanum triquetrum Cav. Nightshade. 



Common in moist soil in ravines. University campus. A vine- 

 like plant with slender branches, white flowers and bright red berries. 



Texas and Mexico. 



BORRAGINACEAE Borage Family 



Lithospermioii breviflorum Engelm. & Gray. Collected by E. T. 

 Palmer. 



