. 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 102nd meridian. Botany. Oenothera strigosa Rydb. (0. canovirens Steele), of the Central States, ranging eastward to Illinois; resembles O. Oakesiana but has some long hairs and unappendaged calyx-segments. It may not be distinct from O. biennis. 5. Oenothera argillicola Mackenzie. Narrow- leaved Evening-Primrose. Fig. 3041. Oe. argilUcola Mackenzie, Torreya 4: 56. 1904. Onagra argillicola Ma
. 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 102nd meridian. Botany. Oenothera strigosa Rydb. (0. canovirens Steele), of the Central States, ranging eastward to Illinois; resembles O. Oakesiana but has some long hairs and unappendaged calyx-segments. It may not be distinct from O. biennis. 5. Oenothera argillicola Mackenzie. Narrow- leaved Evening-Primrose. Fig. 3041. Oe. argilUcola Mackenzie, Torreya 4: 56. 1904. Onagra argillicola Mackenzie, Torreya 4: 57. 1904. Stems several from the same root, finely puberu- lent, 3°-4i° high. Rosette-leaves oblanceolate, 2*'-6' long, 8" wide or less, acute, sinuate, tapering into long petioles; stem-leaves linear-lanceolate, 2i'-3i' long, glabrous, • or slightly puberulent: calyx-tube very slender, glabrous, li'-iJ' long; petals obcordate, crenulate, ii'-i3' long; capsules glabrous, gradually tapering upward from the base, about i' long. In rocky soil. Virginia and West Virgima. 8. RAIMANNIA Rose, Contr. Xat. Herb. 8: 330. 1905 Usually low annual biennial or perennial caulescent herbs, with prostrate or erect stems. Leaves alternate, sinuate or pinnatifid. Flowers perfect, yellow, axillary, or sometimes in terminal spikes, nocturnal; buds erect. Calyx-tube elongated, sometimes filiform, terete; calyx-segments 4, finally reflexed, deciduous. Petals 4. spreading. Stamens 8, equal in length; filaments filiform; anthers linear. Ovary 4-celled, elongated; united styles filiform; stigma deeply 4-cleft; ovules numerous, in 2 rows, ascending. Capsules usually narrowly cylindric, sometimes slightly tapering, spreading or ascending, obtusely 4-angled, loculicidal. Seeds numerous, in 2 rows, terete, crowned by a tubercle. [Name in honor of Rud. Raimann, a monographer of this family.] About 20 species, in North and South America. Type species: Raimannia lacin'.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
