oie PENNELL: THE SPECIES OF KNEIFFIA 
Oenothera fruticosa Fraseri Hook. Bot. Mag. 64. sub pl. 3545. 
1837. 
Oenothera fruticosa glauca Lév. Monog. Onothera 107. 1902. 
Wooded mountain-slopes, southern Virginia to northern 
Georgia, eastern Tennessee and eastern Kentucky. 
12. KNEIFFIA SPACHIANA (T. & G.) Small — 
Oenothera Spachiana T. & G., Fl. N. Am. 1: 498. 1840. ‘Texas, 
Drummond.” 
Kneifia Spachiana Small, Bull. Torrey Club 23: 179. 1896. 
Oenothera fruticosa race Spachiana Lév. Monog. Onothera 106. 
1902. 
Sandy prairies, Kansas and northwestern Arkansas to Louis- 
iana and Texas. : 
13. Kneiffia perennis (L.) Pennell, comb. nov. 
Oenothera perennis L. Syst. ed. 10, 998. 1759. Canada. 
Oenothera pumila L. Sp. Pl. ed. 2. 493. 1762. ‘‘Habitat in 
America septentrionali.”’ 
Oenothera chrysantha Michx. Fl. Bor. Amer. 1: 225. 1803. 
“Hab. a Quebec usque ad sinum Hudsonis.” 
Oenothera pusilla Michx. 1. c. 225. 1803. ‘‘Hab. in rupibus, ad 
lacus Mistassins.” 
Kneiffia chrysantha Spach, Nouv. Ann. Mus. Par. 4: 368. 1835- 
Kneiffia Michauxit Spach, Ann. Sc. Nat. Bot. II. 4: 167. 1835- 
Based on Oenothera chrysantha Michx. 
Knetffia pumila Spach, Hist. Veg. Phan. 4: 377. 1835. 
Ocnothera pumila chrysantha Gordinier & Howe, FI. Rensselaer 
Co., N. Y. 14. 1894. ‘“‘Poestenkill, Howe.”’ . 
Oenothera pumila rectipilis Blake, Rhodora 19: I10. 1917. 
‘NEw Brunswick: dryish rocky ground, Petit Rocher, 
Gloucester Co., 21 Aug. 1913, Blake 5513 (Type in Gray 
Herb.).””. The unusual state in which the pubescence is 
spreading may be considered as a form. 
Dry fields, Nova Scotia and Quebec to Minnesota and North 
Carolina; northward to Hudson Bay; also on St. Pierre Island. 
