. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. 6oo ONAGRACEAE. Vol. I. Kneiffia linifolia (Nutt.) Spach. Thread-leaved Sundrops. Fig. 3049. Oenothera linifolia Nutt. Journ. Acad. Phila. 2: 120. 1821. Kneiffia linifolia Spach, Nouv. Ann. Mus. Par. 4: 368. 1835. Erect, very slender, simple or branched. 6'-i8' high, glabrous or nearly so below, finely pubescent above. Stem-leaves filiform-linear, entire,
. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. 6oo ONAGRACEAE. Vol. I. Kneiffia linifolia (Nutt.) Spach. Thread-leaved Sundrops. Fig. 3049. Oenothera linifolia Nutt. Journ. Acad. Phila. 2: 120. 1821. Kneiffia linifolia Spach, Nouv. Ann. Mus. Par. 4: 368. 1835. Erect, very slender, simple or branched. 6'-i8' high, glabrous or nearly so below, finely pubescent above. Stem-leaves filiform-linear, entire, crowded, 6"-i5" long; basal leaves tufted, oblanceolate or spatulate, petioled, about i' long; flowers in loose spike-like ra- cemes, yellow, diurnal, 3"-4" broad; calyx- lobes short, reflexed, the tube about i" long, rather shorter than the ovary; stigma-lobes very short; capsule obovoid, sessile or very nearly so, puberulent, sharply 4-sided but not winged, 2"-3" long. In dry soil, Illinois to Kansas, south to Geor- gia, Louisiana and Texas. May-July. 2. Kneiffia Alleni (Bntion) Small. Allen's Sundrops. Fig. 3050. Oenothera fruticosa var. htimifusa Allen, Bull. Torr. Club I : 3. 1870. Not Oe. humifusa Nutt. 1818. Kneiffia linearis Alleni Britton, Mem. Torr. Club 5 : 235. 1894. Kneiffia Alleni Small, Bull. Torr. Club 23 : 177. 1896. Low, perennial, finely appressed-pubescent, stems decumbent, at length diffusely branched, 3'-2° long, wiry and zigzag. Leaves oblanceolate to lanceolate, V-il' long, usually obtuse, undulate, sessile or short- petioled; flowers yellow, about S'-i' broad; racemes I'-2' long, usually interrupted; calyx villous, its tube 2"-3" long, striate, its segments linear-oblong, as long as the tube; petals orbicular-obovate, notched at the apex ; capsules club-shaped, 3"-4" long, winged, shorter than the pedicels; seeds obovoid, to oblong, i" long, minutely pitted in rows. In sand, eastern Long Islan
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
