Caprifoliaceae A. L. De Jussieu (Honeysuckle Family) Herbs

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Caprifoliaceae A. L. de Jussieu (Honeysuckle Family) Herbs, shrubs, small trees, or lianas; often with phenolic glycosides, iridoids, and scattered secretory cells. Hairs various. Leaves opposite, simple, sometimes pinnately Floral formula: divided or compound, entire to serrate, with pinnate venation; stipules lacking. Inflorescences various. Flow- berry, capsule, achene ers bisexual and bilateral. Sepals usually 5, connate. Distribution: Widely distributed, especially in northern Petals usually 5, connate, often with 2 upper lobes and 3 lower temperate regions. lobes, or a single upper lobe and 4 lower ones, the lobes imbricate or valvate. Stamens (1-) 4 or 5; filaments adnate Genera/species: 36/810. Major genera: Valeriana (200), to corolla; pollen large, spiny, usually tricolporate or tri- Lonicera (150), Scabiosa (80), and Valerianella (50). Note- porate. Carpels usually 2-5, connate; ovary inferior, often worthy genera of the continental United States and/or elongate, with axile placentation, sometimes only 1 Canada include Lonicera, Valeriana, Valerianella, Dipsacus, locule fertile; style elongate; stigma capitate. Ovules 1 to Linnaea, Symphoricarpos, and Dierviella. numerous in each locule, with 1 integument and a thin- walled megasporangium. Nectar produced by closely Economic plants and products: Lonicera (honeysuckle), packed glandular hairs on lower part of corolla tube. Abelia, Symphoricarpos (snowberry), Weigelia, and Kolkwit- Fruit a capsule, berry, drupe, or achene; endosperm pres- sia are used as ornamentals. Dipsacus (teasel) is a wide- ent or lacking (Figure 8.125). spread weed. Figure 8.125 Caprifoliaceae. (A-H) Lonicera sempervirens: (A) fruiting branch (x 0.75); (B) flower (x 3); (C) corolla opened lengthwise to show attachment of stamens and distribution of hairs and nectar glands (x 2.3); (D) portion of inflorescence, corollas removed (x 12); (E) ovary in cross-section (x 15); (F) seed (x 9); (G) seed in cross-section, seed coat hatched, endosperm stip- pled, and embryo unshaded (x 9); (H) embryo (x 18). (I-J) L. japonica: (I) flowering branch (x 0.75); (J) flower (x3). (From Ferguson 1966, J. Arnold Arbor. 47: p. 55.).

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