Sia PENNELL: THE SPECIES OF KNEIFFIA 
Oenothera fruticosa Fraseri Hook. Bot. Mag. 64. sub $l. 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.” 
Kneiffia 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 Hudsonts.” 
Oenothera pusilla Michx, I. c. 225. 1803. ‘‘Hab. in rupibus, ad 
lacus Mistassins.” 
Kneiffia chrysantha Spach, Nouv. Ann. Mus. Par. 4: 368. 1835- 
Kneiffia Michauxii Spach, Ann. Sc. Nat. Bot. II. 4: 167. 1835- 
Based on Oenothera chrysantha Michx. 
Kneiffia pumila Spach, Hist. Veg. Phan. 4: 377. 1835- 
Oenothera pumila chrysantha Gordinier & Howe, Fl. Rensselaer 
Co., N. Y. 14. 1894. ‘‘Poestenkill, Howe.”’ 
Oenothera pumila rectipilis Blake, Rhodora 19: 110. 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 asa form. 
Dry fields, Nova Scotia and Quebec to Minnesota and 
Carolina; northward to Hudson Bay; also on St. Pierre 
North 
Island. 
