圆锥组 yuan zhui zu

Microtinus Oersted; Solenotinus (Candolle) Spach; Thyrsosma Rafinesque.

Winter buds with 2 or 3 pairs of separate scales. Inflorescence paniculate, usually pyramidal, without large sterile radiant flowers, pedicellate or subsessile. Corolla rotate, tubular-campanulate, funnelform-hypocrateriform, or hypocrateriform. Fruit maturing red or purple-reddish and later nigrescent; pyrenes with 1 deep ventral groove; albumen solid.

About 20 species: temperate and subtropical Asia; 18 species (13 endemic) in China.

This section was divided into four subsections by H. Hara (Ginkgoana 5: 190-204. 1983): Viburnum subsect. Loniceroides (Oersted) H. Hara for V. farreri and V. grandiflorum, V. subsect. Microtinus (Oersted) H. Hara for V. odoratissimum and ca. six other species, V. subsect. Sieboldiana (Nakai) H. Hara for V. sieboldii and probably the Chinese V. yunnanense and V. shweliense, and V. subsect. Solenotinus for ca. ten species. Recent phylogenetic work shows that this section is clearly monophyletic (excluding the Bornean V. clemensiae) and sister to V. sect. Tomentosa. Current sampling does not allow a more precise discussion regarding the monophyly of subsections.