Symplocos, Jacquin, 1760

Kelly, Lawrence M., Almeda, Frank & Fritsch, Peter W., 2016, A taxonomic revision of Mexican and Central American Symplocos (Symplocaceae), Phytotaxa 264 (1), pp. 448-450 : 448-450

Key to the sections and series of Symplocos in Mexico and Central America

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1. Leaf midvein flat or prominent adaxially, at least at base; petals connate at base only; androecium adnate to corolla at base only; filaments terete in cross section, apically not constricted; endocarp 1-locular (rarely 2–3-locular in S. longipes , then septa thin and delicate) ............................................................................................................................... I. S. section Hopea Leaf midvein sulcate adaxially, at least at base; petals connate distinctly beyond base; androecium adnate to corolla distinctly beyond base; filaments tangentially flattened in cross section, apically constricted; endocarp (2–)3–5-locular, septa thick and firm .......................................................................................................II. S. [section Symplocos ] series Symplocos

I. Symplocos section Hopea (L.) Candolle (1844: 253). ≡ Hopea Linnaeus (1767: 105) , nom. rej., non Roxburgh (1811: 7), nom. cons. ≡ Protohopea Miers (1879: 289) . ≡ Symplocos subg. Hopea (L.) C.B.Clarke in Hooker (1882: 572). Type:— Hopea tinctoria Linnaeus (1767: 105) (≡ Symplocos tinctoria [L.] L’Héritier [1791: 176])

= Barberina Vellozo (1825: 235) . ≡ Symplocos sect. Barberina (Vell.) Candolle (1844: 253) . ≡ Symplocos subsect. Barberina (Vell.) Bentham & Hooker (1876: 668) . Type:— Barberina hirsuta Vellozo (1825: 235) (≡ Symplocos hirsuta (Vell.) Candolle [1844: 253] ).

= Epigenia Vellozo (1825: 183) . ≡ Symplocos subg. Epigenia Brand (1901: 26) . Lectotype (designated by Fritsch et al. 2008):— Epigenia crenata Vellozo (1825: 184) .

= Symplocos sect. Pseudosymplocos Brand (1901: 30) . Lectotype (designated by Fritsch et al. 2008):— Symplocos salicifolia Grisebach (1866: 168) .

Trees, evergreen (in Mexico and Central America) or rarely deciduous or semi-deciduous. Mature current-year branchlets usually green, or rarely brown. Leaf midvein flat or prominent adaxially, at least at base. Hermaphroditic (in Mexico and Central America) or dioecious. Bracts and bracteoles caducous at anthesis. Petals connate at base only. Androecium adnate to corolla at base only; filaments terete in cross section, apically not constricted. Gynoecium 3-carpellate; disk glabrous (in Mexico and Central America) or pubescent; stigma terminal. Endocarp usually 1-locular, rarely also 2–3-locular with thin and delicate septa, usually rounded or rarely fluted.

The Mexican and Central American species of Symplocos section Hopea

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