. Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches. Gardening. 1120 OENOTHERA CENOTHERA 3. clieirantliifdiia, Hornem. Stems decumbent or as- cending^, 2 ft. or more tall, cauescent: Ivs. thick, about 1-2 in. long, broad-ovate to lanceolate or the lower ones spatulate, the upper ones becoming sessile, most of them entire: petals yellow, K-M iii. long: capsule % in. or less


. Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches. Gardening. 1120 OENOTHERA CENOTHERA 3. clieirantliifdiia, Hornem. Stems decumbent or as- cending^, 2 ft. or more tall, cauescent: Ivs. thick, about 1-2 in. long, broad-ovate to lanceolate or the lower ones spatulate, the upper ones becoming sessile, most of them entire: petals yellow, K-M iii. long: capsule % in. or less long, curved, somewhat hairy. Calif. 12:1040. III. Subgenus Meriolix. Stem-hearing: stigma disk- like but 4'toothed: calyx-tube shorter than the ovariff enlarging upward: capsule linear or nearly cylindrical, sessile: fls. yellow, axillary. 4. serrulita, Nutt. Slender, simple or branched, about 1 ft. high but variable in stature, nearly glabrous to canescent: Ivs. linear to lanceolate, 1-3 in. long, usually acute, attenuate to the base, sharply dentate: petals broad- obovate, 34 in. long, wavy-margined. Minn., west and south. Biennial or perennial. Mn. 7:41. Subgenus Onagra. Stem-hear- ing: stigma 4-cleft: calyx-tube elongated and cylindrical, en- larging at the throat: capsule linear-ohlong to long-conic, 4- angled: fls. yellow, opening in eveni-ng.—TnvE Evening Prim- roses. 5. biennis, Linn. Common Evening Primrose. Pig. 1514. Tall, strong, simple or branching biennial (often 4—5 ft.), closely pubescent or some- what hairy: Ivs. lanceolate to oblong to ovate-lanceolate, often 6 in. long, acute, remotely denticulate, the low- est ones petioled: calyx-tube 1-2 in. or more long: petals bright yellow, % in. or less long: capsule pubescent or hairy, often 1 in. long. Generally dis- tributed, and now a common weed in the Old World. Gn. 26, p. fls. open suddenly at nightfall. It is a weedy plant and has little to recom- mend it to cultivation, although it is offere


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