Oenothera suaveolens, Pers.

6. O. suaveolens Pers. , Syn. Pl. 1: 408 (1805).

Like 5 but leaves not crinkled; stem without red spots; stigma surrounded by anthers. 2« = 14 (ring of 12 chromosomes and 1 bivalent at meiosis). Probably of European origin and sparingly naturalized in scattered localities. • Az Cz Ga Ge Hu It Po.

The application of the name is somewhat uncertain. O. grandiflora L’Hér. in Aiton, Hort. Kew. 2: 2 (1789), differs in its subglabrous sepals and capsules (pubescent and glandular in 6). It is probably usually cultivated but may occasionally become naturalized.

7-9. O. parviflora group. Stem 10-200 cm, erect or decumbent, hairy. Inflorescence more as less nodding at anthesis. Sepal-apices subterminal, divergent in bud. Hypanthial tube 15-30 mm. Petals 12-20 mm. Style 4-5-25 mm. Capsule 20-40 mm. Seeds 1 -7-2-2 x 1-1-5 mm.

The name O. muricata L. (Onagro nutricata (L.) Moench) refers to this group, but its exact application is uncertain. The distributions of the individual taxa are not at all well-known but the group as a whole occurs in the following territories: Au Be Br Bu Cz Da Ga Ge He Ho Hs Hu It Ju No Po Rm Rs (C).

1

Leaveswhite-hairy; young capsule red-striped

9. ammophila 1

Leaves subglabrous;capsule notred-striped

2

Root thick; inflorescence stout, leafy; sepal-apices short

7. parviflora 2

Root slender; inflorescence slender, lax; sepal-apices long

8. silesiaca