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RUBIACEAE MADDER FAMILY

Robert E. Preston & Lauramay T. Dempster, except as noted

Annual to tree, vine. Leaf: generally opposite (whorled), entire; stipules generally fused to stem, adjacent pairs occasionally fused, or occasionally leaf-like and appearing like whorled leaves. Inflorescence: cyme, panicle, spike, cluster, or flower 1, generally terminal and ± axillary. Flower: generally bisexual; calyx ± 4(5)-lobed, occasionally 0 (Galium, Crucianella) or 6 (Sherardia); corolla generally radial, 4(5)-lobed; stamens epipetalous, alternate corolla lobes, generally included; ovary generally inferior, chambers generally 2 or 4, style 1(2). Fruit: drupe, berry, or 2 or 4 nutlets [capsule].
± 500 genera, 6000 species: worldwide, especially tropics; many cultivated, including Coffea, coffee; Cinchona, quinine; many ornamental. [Robbrecht & Manen 2006 Syst & Geogr Plant 76:85–146] Diodia teres Walter doubtfully in California. —Scientific Editors: Douglas H. Goldman, Bruce G. Baldwin.
Unabridged references: [Dempster 1979 Fl California 4(2):1–47]

Key to Rubiaceae

KELLOGGIA
Perennial herb from thin rhizome. Leaf: opposite; stipules ± scale-like, base fused. Inflorescence: cyme, terminal, open, flowers few, pedicel long, slender. Flower: calyx 4–5-lobed; corolla funnel-shaped, 4–5-lobed; styles 2, fused proximally. Fruit: nutlets 2, wider distally.
2 species: western North America, China. (Albert Kellogg, pioneer California botanist, 1813–1887)

Previous taxon: Galium wrightii
Next taxon: Kelloggia galioides

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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Apr 19 2014
Citation for this treatment: [Author of taxon treatment] 2012. Kelloggia, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=11296, accessed on Apr 19 2014

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