WEST VIRGINIA GEOLOGICAL SURVEY 309 



lata; but when pure it never has purpUsh 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. aKnis.. (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. afUnis 

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

 Brainerd. 



CUBELIUM Raf. 



C. CONCOLOR (Forst.) Raf. Green Violet. {Solea concolor Gmg.) . 



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 (A/'mWo/O- 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. (0. 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^. 



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 

 (Nut tall). 



LYTHRACEAE. 



ROTALA Linn. 

 R. RAMOSiOR (L.) Koehne. 



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



