Seed Plants, Ferns, Fern Allies of the Austin Region 75 



Viburnum rufotomentasum Small. (T\ pruni folium var. ferrugineum 

 T. & G.) Black Haw. 



Common in moist ravines of the Edwards Plateau. A shrub or 

 small tree with glossy, oval leaves, white flowers in flat-topped clus- 

 ters, and black berries. It differs from the preceding in its rusty 

 tomentose petioles. 



Southeastern states. 



VALERIANALES 

 VALERIANACEAE Valerian Family 



Valerianella amarella Krok. Corn Salad. Lamb Lettuce. 



A low plant abundant in low ground and moist uplands. Its op- 

 posite branches terminate in flat-topped, conspicuously four-sided 

 clusters of white flowers. 



Texas. 



Valerianella radiata Dupr. Corn Salad. Lamb Lettuce. 

 Similar to the preceding. Low ground. 

 Eastern states. 



ARISTOLOCHIALES 



ASARACEAE Birthwort Family 



Aristolochia longi folia Engelm. & Gray. 

 Found occasionally in cultivated ground. 

 Along the Rio Grande. 



CAMPANULALES 



CURURBITACEAE Gourd Family 



Cucurbita foetidissima H.B.K. Wild Gourd. 



Very common in waste places. A creeping vine with large leaves, 

 ill-scented. 



Southern central states to California and Mexico. 



Ibervillea Lindheimeri Greene. (Ma.rimoiviczia Lindheimeri Cogn.) 

 Wild Pomegranate, Balsam. 



Abundant in thickets on the hills of the Edwards Plateau. A 

 climbing vine with bright red oval fruits. 



Southwestern states. 



Ibervillea tenella Small. Wild Pomegranate, Balsam. 

 Ravines and wooded hillsides. 

 Texas. 



