Generic Segregation of Some Sections and Subsections of the Genus Hydrangea (Hydrangeaceae)
Total Page:16
File Type:pdf, Size:1020Kb
J. Jpn. Bot. 91(6): 345–350 (2016) Generic Segregation of Some Sections and Subsections of the Genus Hydrangea (Hydrangeaceae) a, b Hideaki OHBA * and Shinobu AKIYAMA aDepartment of Botany, the University Museum, the University of Tokyo, 7-3-1, Hongo, Tokyo, 113-0033 JAPAN; bDepartment of Botany, National Museum of Nature and Science, 4-1-1, Amakubo, Tsukuba, 305–0005 JAPAN *Corresponding author: [email protected] (Accepted on October 11, 2016) De Smet (2015) united all genera classified Hydrangeeae by Engler (1930) into a single genus Hydrangea. These genera delimited by Engler are easily distinguished by their morphological features, and also their habitat and ecological preferences. To rescue the genera adopted by Engler we propose generic segregation of most of the sections and subsections of Hydrangea by Engler according to the tree by De Smet et al. (2015). Genus Hortensia Comm. ex A. L. Juss. applies to the species of sect. Euhydrangea subsect. Petalanthae of Engler, and is divided into three sections named Hortensia, Chinenses, and Hirtae. Hydrangea involucrata and H. sikokiana are classified into genus Platycrater Siebold & Zucc., Hydrangea integrifolia Hayata is transfered to genus Cornidia Ruiz & Pav., H. petiolaris Siebold & Zucc. to genus Calyptranthe (Maxim.) H. Ohba & S. Akiyama, and also H. paniculata and similar species to genus Heteromalla (Rehder) H. Ohba & S. Akiyama. The necessary combinations and new states are proposed. A new form of Hortensia serrata, named f. plenidecuris is proposed. Key words: Calyptranthe, Cornidia, Heteromalla, Hortensia, Hortensia serrata f. plenidecuris (new name), Hydrangea, new combination, new state, Platycrater. Recently De Smet et al. (2015) published eastern Asia, where there is the greatest diversity, a new (infra) generic classification, based and also in horticulture and in traditional human on their vast analyses of plastid DNA, to culture. alleviate polyphyly in the tribe Hydrangeeae To rescue the genera adopted by Engler (Hydrangeaceae). They united all genera of (1930) from synonymy under Hydrangea, we Hydrangeeae adopted by Engler (1930) into a propose generic segregation of most of the single genus Hydrangea. The genera delimited sections and subsections of Hydrangea proposed by Engler, however, are easily distinguished by De Smet et al. (2015). The principal basis of by their own properties and are also distinct our treatment is their tree using 50% majority- in their habitat and ecological preferences. rule consensus based on the combined plastid Engler’s system of Hydrangeeae has been dataset with indels coded. Further synonyms of widely accepted in national, regional and local each taxon are shown in Ohba (2001) and Ohba floras (Pan et al. 2001, Ohba 2001), especially in and Akiyama (2013, 2014). —345— 346 植物研究雑誌 第 91 巻 第 6 号 2016 年 12 月 1. Hortensia Comm. ex A. L. Juss., Gen. Pl.: DC., Prodr. 4: 15 (1830). H. Ohba in K. Iwats. & 237 (4 Aug. 1789). al., Fl. Jap. 2b: 87 (2001). Type: Hortensia opuloides Lam., Encycl. 3: 136 (19 Oct. 1789). f. isobue (H. Ohba & S. Akiyama) H. Ohba Japanese name: Ajisai-zoku. & S. Akiyama, comb. nov. Hydrangea macrophylla (Thunb.) Ser. f. a) Sect. Hortensia isobue H. Ohba & S. Akiyama in Bull. Natl. Hydrangea subsect. Macrophyllae E. M. Mus. Nat. Sci., Ser. B, 40: 144 (2014). McClint. in J. Arn. Arbor. 37: 374 (1956). Hydrangea sect. Macrophyllae (E. M. f. isonotaki (H. Ohba & S. Akiyama) H. McClint.) Y. De Smet & Samain in Taxon 64: Ohba & S. Akiyama, comb. nov. 751 (2015). Hydrangea macrophylla (Thunb.) Ser. f. Japanese name: Ajisai-setsu. isonotaki H. Ohba & S. Akiyama in Bull. Natl. Mus. Nat. Sci., Ser. B, 40: 144 (2014). Hortensia cuspidata (Thunb.) H. Ohba & S. Akiyama, comb. nov. f. normalis (E. H. Wilson) H. Ohba & S. f. cuspidata. Akiyama, comb. nov. Viburnum cuspidatum Thunb. in Murray, Hydrangea macrophylla (Thunb.) Ser. var. Syst. Veg. ed. 14: 295 (May–June 1784); Fl. normalis E. H. Wilson in J. Arn. Arbor. 4: 234 Jap.: 125 (Aug. 1784). (1923). Hydrangea serrata (Thunb.) Ser. var. Hydrangea macrophylla (Thunb.) Ser. f. yesoensis (Koidz.) H. Ohba f. cuspidata normalis (E. H. Wilson) H. Hara in J. Jap. Bot. (Thunb.) Nakai, Siebold Hydrange. Kaisetsu: 14 30: 277 (1955). H. Ohba in K. Iwats. & al., Fl. (1938). H. Ohba in K. Iwats. & al., Fl. Jap. 2b: Jap. 2b: 88 (2001). 91 (2001). Japanese name: Hime-ajisai. Hortensia serrata (Thunb.) H. Ohba & S. Akiyama, comb. nov. f. yesoensis (Koidz.) H. Ohba & S. Akiyama, var. serrata. comb. nov. f. serrata. Hydrangea japonica Siebold var. rosalba Viburnum serratum Thunb., Fl. Jap.: 124 Van Houtte, Fl. Serres 16: 75, t. 1649–50 (1867). (1784). H. Ohba in K. Iwats. & al., Fl. Jap. 2b: 90 Hydrangea serrata (Thunb.) Ser. in DC., (2001). Prodr. 4: 15 (1830). H. Ohba in K. Iwats. & al., Hydrangea yesoensis Koidz. in Bot. Mag. Fl. Jap. 2b: 89 (2001). (Tokyo) 40: 347 (1926). Hydrangea serrata (Thunb.) Ser. var. f. belladonna (Kitam.) H. Ohba & S. yesoensis (Koidz.) H. Ohba in K. Iwats. & al., Akiyama, comb. nov. Fl. Jap. 2b: 90 (2001). Hydrangea serrata (Thunb.) Ser. f. belladonna Kitam. in Acta Phytotax. Geobot. Hortensia macrophylla (Thunb.) H. Ohba & 14: 86 (1951). H. Ohba in K. Iwats. & al., Fl. S. Akiyama, comb. nov. Jap. 2b: 90 (2001). f. macrophylla Viburnum macrophyllum Thunb., Fl. Jap.: f. plenidecuris H. Ohba & S. Akiyama, f. 125 (1784). nov. Hydrangea macrophylla (Thunb.) Ser. in Differs from the type with double-petaled December 2016 The Journal of Japanese Botany Vol. 91 No. 6 347 ornamental flowers. 14: 689 (1828). Type: JAPAN. Tokyo. Hachiôji-shi, Hydrangea serrata (Thunb.) Ser. var. Naganuma Kôen, H. Ohba & K. Shiina s.n., 3 japonica (Siebold) H. Ohba & S. Akiyama in July 2015, (TI–holo; TNS–iso). Bull. Natl. Mus. Nat. Sci., Ser. B, 39: 179 (2013). Japanese name: Yaezaki-yama-ajisai. Japanese name: Beni-gaku. Hortensia japonica seems to be a hybrid f. prolifera (Regel) H. Ohba & S. Akiyama, between H. cuspidata (Thunb.) H. Ohba & S. comb. nov. Akiyama and H. serrata (Thunb.) H. Ohba & S. Hydrangea stellata Siebold & Zucc. var. (β.) Akiyama. prolifera Regel in Gartenflora 15: 291, t. 521 (1866). H. Ohba in K. Iwats. & al., Fl. Jap. 2b: b) Sect. Chinenses (Y. De Smet & Granados) 90 (2001). H. Ohba & S. Akiyama, comb. nov. Hydrangea sect. Chinenses Y. De Smet & var. acuminata (Siebold & Zucc.) H. Ohba Granados in Taxon 64: 750 (2015). & S. Akiyama, comb. nov. Hydrangea sect. Petalanthae Maxim. in Hydrangea acuminata Siebold & Zucc., Fl. Mém. Acad. Imp. Sci. Saint Pétersbourg, ser. 7, Jap. 1: 110, t. 56, 57 I (1839). Ohba & Akiyama 10: 6 (1867), pro parte, nom. illeg.; C. F. Wei in in Bull. Natl. Mus. Nat. Sci., Ser. B, 39: 178 Guihaia 14: 105 (1994), pro parte. (2013). Hydrangea subsect. Petalanthae (Maxim.) Rehder in Sargent, Pl. Wilson. 1: 37 (1911), pro var. angustata (Franch. & Sav.) H. Ohba & parte. S. Akiyama, comb. nov. Japanese name: Kara-konterigi-setsu. Hydrangea hortensis Sm. var. (γ.) angustata Franch. & Sav., Enum. Pl. Jap. 1: 151 (1873). Hortensia chinensis (Maxim.) H. Ohba & S. Hydrangea serrata (Thunb.) Ser. var. Akiyama, comb. nov. angustata (Franch. & Sav.) H. Ohba in J. Jap. var. chinensis. Bot. 64: 325 (1989). H. Ohba in K. Iwats. & al., Hydrangea chinensis Maxim. in Mém. Acad. Fl. Jap. 2b: 90 (2001). Imp. Sci. Saint Pétersbourg, ser. 7, 10: 7 (1867). H. Ohba in K. Iwats. & al., Fl. Jap. 2b: 93 var. minamitanii (H. Ohba) H. Ohba & S. (2001). Akiyama, comb. nov. Hydrangea serrata (Thunb.) Ser. var. var. koidzumiana (H. Ohba & S. Akiyama) minamitanii H. Ohba in J. Jap. Bot. 64: 199 H. Ohba & S. Akiyama, comb. nov. (1989). Hydrangea chinensis Maxim. var. koidzumiana H. Ohba & S. Akiyama in H. Ohba var. thunbergii (H. Ohba & S. Akiyama) H. in K. Iwats. & al., Fl. Jap. 2b: 93 (2001). Ohba & S. Akiyama, comb. nov. Hydrangea yayeyamensis Koidz. in Bot. Hydrangea serrata (Thunb.) Ser. var. Mag. (Tokyo) 43: 394 (1929), pro parte, excl. thunbergii H. Ohba & S. Akiyama in Bull. Natl. lectotypo. Mus. Nat. Sci., Ser. B, 39: 179 (2013). Japanese name: Yaeyama-konterigi. Hortensia japonica (Siebold ) H. Ohba & S. Hortensia kawagoeana (Koidz.) H. Ohba & Akiyama, comb. nov. S. Akiyama, comb. nov. Hydrangea japonica Siebold in Nova Acta var. kawagoeana. Phys.-Med. Acad. Caes. Leop.-Carol. Nat. Cur. Hydrangea kawagoeana Koidz. in Bot. Mag. 348 植物研究雑誌 第 91 巻 第 6 号 2016 年 12 月 (Tokyo) 32: 138 (1918). H. Ohba in K. Iwats. & (Aug. 1784). al., Fl. Jap. 2b: 93 (2001). Hydrangea hirta (Thunb.) Siebold & Zucc., Fl. Jap. 1: 117, t. 62 (1839). H. Ohba in K. Iwats. var. grosseserrata (Engl.) H. Ohba & S. & al., Fl. Jap. 2b: 91 (2001). Akiyama, comb. nov. Hydrangea grosseserrata Engl. in Pfl. fam. d) Intersectional hybrids ed. 2, 18a: 204 (1930). H. Ohba in K. Iwats. & al., Fl. Jap. 2b: 93 (2001). Hortensia ×amagiana (Makino) H. Ohba & S. Akiyama, comb. nov. Hortensia liukiuensis (Nakai) H. Ohba & S. Hydrangea amagiana Makino in J. Jap. Bot. Akiyama, comb. nov. 8: 31(1932). H. Ohba in K. Iwats. & al., Fl. Jap. Hydrangea liukiuensis Nakai in Bot. Mag. 2b: 94 (2001). (Tokyo) 25: 63 (1911). H. Ohba in K. Iwats. & al., Fl. Jap. 2b: 91 (2001). Hortensia ×mizushimarum (H. Ohba) H. Ohba & S. Akiyama, comb. nov. Hortensia luteovenosa (Koidz.) H. Ohba & Hydrangea ×mizushimarum H. Ohba in K. S. Akiyama, comb. nov. Iwats. & al., Fl. Jap. 2b: 94 (2001). var. luteovenosa Hydrangea luteovenosa Koidz. in Bot. Mag. 2. Platycrater Siebold & Zucc., Fl. Jap. 1: (Tokyo) 39: 4 (1925). H. Ohba in K. Iwats. & 64, t. 27 (1835); in Abh. Nath.-Phys. C. Königl. al., Fl. Jap. 2b: 92 (2001). Bayer. Akad. Wiss. 4(2): 192 (1845). Hydrangea subsect. Asperae Rehder in var. yakusimensis (Masam.) H. Ohba & S. Sargent, Pl. Wilson. 1: 39 (1911).