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Sinopora, A New Genus of Lauraceae from South China Jie Li Laboratory of Plant Phylogenetics and Conservation Biology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, 650223 Kunming, People’s Republic of China. [email protected] Nian-he Xia Institute of Economic Botany, South China Botanical Garden, Chinese Academy of Sciences, 510650 Guangzhou, People’s Republic of China Xi-wen Li (Hsi-wen Li) Laboratory of Plant Phylogenetics and Conservation Biology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, 650223 Kunming, People’s Republic of China; and Herbarium (KUN), Kunming Institute of Botany, Chinese Academy of Sciences, 650204 Kunming, People’s Republic of China Abstract. The new genus Sinopora J. Li, N. H. Xia Vegetatively, the material looks quite like Hex¬ & H. W. Li is reported for ihe Lauraceae from Hong apora Hooker f. species with slender branchlets and Kong in South China and is based on Syndiclis alternate, penninerved, conspicuously reticulate hongkongensis N. H. Xia, Y. F. Deng & K. L. Yip. The leaves. The axillary few-flowered paniculate inflores¬ new genus is distinguished from Syndiclis Hooker f. by cence conforms to the basic configuration in Hex¬ its trimerous flowers. The new genus is similar to apora. The flower appears quite Hexapora-like with a Hexapora Hooker f., but its anthers are originally short perianth, six exserted stamens, a 2-celled introrse and tubular, with two anther cells near each anther, its cells opening by minute pores, and six other and apically opening by minute pores, the staminodes. However, we considered that the species staminodes as large as the stamens, but not produced is different from the monotypic genus Hexapora above the stamens. (Hooker, 1886, 1890; Kostermans, 1957; Kochum- Key words: China, IUCN Red List, Lauraceae, men, 1989; Rohwer, 1993; van der Werff, 2001). Hexapora curtisii Hooker f. has orbicular tepals and subquadrate anthers; the two anther cells are rounded, The species Syndiclis hongkongensis N. H. Xia, Y. extrorse, and distant from each other; and the F. Deng & K. L. Yip, collected from Tai Mo Shan, staminodes of the third and fourth whorls are Hong Kong, Chin tl 1 b 1 for the produced above the stamens. Lauraceae (Xia et al., 2006) and greatly attracted our Syndiclis hongkongensis is also similar to species attention. After carefully checking the type speci¬ with six stamens in the genus Beilschmiedia Nees (Li mens, the description, and the figure of the new et al., 1984; Hyland, 1989; Nishida, 1999). However, species (Hu , 2003; Xia et ah, 2006), we confirmed stamens in the latter genus have slit-like openings that that it did rot belong to the genus Syndiclis Hooker f. its trimerous flowers. This species has consider from Hong Kong in South ual flowers in a slender axillary panicle of China d fit ) 12 flowers. Its flower has s 3 tepals; the Lauraceae and certainly represents a exserted stamens are six in two whorls, subsessile and which we describe here, eglandular; the tubular anther is 2-celled, these cells ofacoepruiliglcr itaanhln alydwll yhtoh opeirenl sfntl r aoabprry esi e sm;s ioixtnnh, uetoth epes p tpaoaobmsraietixensi ,oa tdolt he seasi d njedoo,f i nathtsth eebl a aernttgwhtehie reedarns s atatnhhrdeee SinoTDpYoenrPagE :&J .S KiLn.io , pLNo. r.Ya iHhpo). nJXg. kiLao in,& gNe n.H sH.i s. W(XN.i .a L H&i., XHgei.a n,W. Y.m . 1 stamens but not produced above them; the ellipsoid, 10.3417/2006070 Novon 18: 199-201. Published on 22 May 2008.