PENNELL: THE SPECIES OF KNEIFFIA 371 
Kneifia shee pan Spach, /. c. 375. 1835. ‘‘Oenothera serotina 
Sweet. .. 
Oenothera fruticosa phyllopus seen Bot. Mag. 64: sub pl. 3345. 
1837. ‘‘ Bot. Mag. t. 332.” 
Oenothera fruticosa incana Hook. I. c. sub pl. 3545. _ 1837. 
Oenothera fruticosa hirsuta Nutt.; T. & G., Fl. N. Am. 1: 496. 
1840. 
Oenothera hybrida ambigua Blake, Rhodora 20: 52. 1918. 
Dry soil, barrens, etc., New York to Alabama, Tennessee and 
southern Michigan; the commonest Kuneiffia of the Piedmont and 
Alleghanian floras. 
10a. Kneiffia tetragona longistipata Pennell, var. nov. 
Leaves linear-lanceolate. Stipe equaling capsule-body. 
Type, woods near Clemson, Pickens County, South Carolina, 
collected in flower May 12, 1907, H. D. House 3340; in the 
herbarium of the New York Botanical Garden. 
Piedmont Region, North Carolina to Georgia. 
10b. Kneiffia tetragona hybrida (Michx.) Pennell, comb. nov. 
Oenothera hybrida Michx. Fl. Bor. Amer. 1: 225. 1803. ‘Hab. 
in Carolina superiore.” 
Knetffia floribunda Spach, Hist. A el 4: 376. 1835. ‘‘Croit dans 
le midi des Etats-Unis.” 
Mountains of North Carolina, there nearly or quite replacing 
the typical form of the species. As examples may be cited: 
Biltmore Herb. 669b; Heller 263; and Standley 53606. 
11. KNEIFFIA GLAUCA (Michx.) Spach 
Oenothera glauca Michx. Fl. Bor. Amer. 1: 224. 1803. ‘‘Hab. 
in sylvis remotis et occidentalibus flumini Mississipi confini- 
bus, versus regionem IIlinoensium.” Surely the plant here 
considered, a not known to occur so far west as the 
type station. 
Oenothera Fraseri Pursh, Fl. Amer. Sept. 2: 734. 1814. “In 
South Carolina Fraser . . . v. v. in Hortis.”’ 
Kneiffia glauca Spach, Hist. Veg. 4: 374. 1835. 
Kneiffia Fraseri Spach, 1. c. 375. 1835. 
