WEST VIRGINIA GEOLOGICAL SURVEY 309 



lata; but when pure it never has purplish or purple-dotted 

 capsules. The green-capsuled plants seem to be seedlings 

 with the recessive character in color of capsule. The black 

 seeds are nearly those of V. cucullata, black being dominant 

 over buff the color of the seeds of V. affinis.. (In my cul- 

 tures of this hybrid the recessive buff re-appears in some of 

 the offspring. See Science 25:940-944. June 14, 1907.) 



In No. 305 (but not in 306) the short auricles of V. affinis 

 appear with the green capsules of V. cucullata." Ezra 

 Brainerd. 



CUBELIUM Raf. 



C. CONCOLOR (Forst.) Raf. Green Violet. (Solea concolor Ging.). 



Rich woods. Wirt : near Burning Springs. Calhoun : 

 along Laurel Run. Gilmer: near Glenville (Mapel). 



PASSIFLORACEAE. 



PASSIFLORA L. 

 P. LUTEA L. Yellow Passion-flower. 



Hillsides. Fayette : near Nuttallburg (Nuttall). Preston: 

 near Aurora (Mr. & Mrs. Steele). 

 P. INCARNATA L. Passion-flower. 



Dry soil. Gilmer: near Glenville (Mapel). 



CACTACEAE. 



OPUNTIA Mill. 



O. OPUNTIA (L.) Coulter. Prickly Pear. (O. vulgaris Mill.). 

 Open fields and among scrub pines in the Devonian forma- 

 tions of Hardy: near Moorefield, where it is a prevalent 

 weed in many places. 



THYMELEACE;E. 

 DIRCA L. 



D. PALUSTRIS L. Leatherwood. 



Damp woods. Jackson : near Ripley. Wirt : near Eliza- 

 beth. Calhoun : near White Pine and Brookville. Green- 

 brier : White Sulphur Springs. Fayette : near Nuttallburg 

 (Nuttall). 



LYTHRACEAE. 



ROTALA Linn. 

 R. RAMOSIOR (L.) Koehne. 



Wet places. Kanawha : at the Salinas (Holton). 



