Twenty-six additional new combinations in the Magnolia (Magnoliaceae) of China and Vietnam Author Callaghan, Christopher B. Australian Bicentennial Arboretum, P. O. Box 88, Penshurst. NSW 2222. Australia callaghanaba@gmail.com Author Png, Siak K. Australian Bicentennial Arboretum, P. O. Box 88, Penshurst. NSW 2222. Australia text PhytoKeys 2020 146 1 35 http://dx.doi.org/10.3897/phytokeys.146.52114 journal article http://dx.doi.org/10.3897/phytokeys.146.52114 1314-2003-146-1 F634881ACA0A5039A93E4C0FFCB056DF Magnolia septipetala (Z.L. Nong) C.B. Callaghan & S.K. Png comb. nov. Basionym. Michelia septipetala Z.L. Nong. In: Guihaia 13(3): 220-221, fig. 1 (1993). Chinese name. 七瓣含笑 meaning "seven-petals (tepals) michelia" (the tepals in fact are recorded as 7-9) Type. CHINA. Jiangxi Province: Xinfeng County, Jinpen Shan, in woods, 21 May 1986, Nong Zhi-lin 086067 (holotype: IBK, fl. white n.v.). Other specimens recorded: Same locality? Nong Z.L. 086167 . Jiangxi Province: Shangyou County, Wuzhifeng, Guangu Shan, 670 m, 23 November 1976, Nong Z.L. 760347 (JXAU online images!). Digital images of specimen 760347 with collector noted as Shi Xinghua, accessed 19 March 2019: [JXAU: 0001182]: http://www.cvh.ac.cn/spm/JXAU/JXAU0001182 [JXAU: 0001183]: http://www.cvh.ac.cn/spm/JXAU/JXAU0001183 [JXAU: 0001184]: http://www.cvh.ac.cn/spm/JXAU/JXAU0001184 Michelia fujianensis Q.F. Zheng. In: Xia and Deng (2002 : 130) and Xia et al. (2008 : 83), both p.p. quoad syn. Michelia septipetala Z.L. Nong. Michelia caloptila Y.W. Law & Y.F. Wu. In: Sima (2011 : 234), p.p. quoad syn. Michelia septipetala Z.L. Nong. Note. The holotype specimen of Michelia septipetala cannot be found at IBK (Xu Wei-bin, pers. comm., July 2019). However, M. septipetala can be easily differentiated from both M. fujianensis and M. caloptila , the 2 species under which it is noted in synonymy above, by the comparison of their morphological and phenological characteristics summarised in Table 8 below. Table 8. Differentiating features of Michelia septipetala , M. fujianensis and M. caloptila .

Plant feature	Michelia septipetala Z.L. Nong	Michelia fujianensis Q.F. Zheng	Michelia caloptila Y.W. Law & Y.F. Wu
maximum height	28 m (30 m†)	to 16 m§	ca. 15 m¶
bark colour	greyish-white	greyish-brown	grey
indumentum of buds	densely ferrugineus-tomentose	densely cinnamon-coloured tomentose	brown tomentose
indumentum of branchlets	densely ferrugineus-tomentose	densely cinnamon-coloured tomentose	brown tomentose
leaf shape	oblong-elliptic	oblong or narrowly obovate-elliptic	narrowly elliptic or elliptic
leaf dimensions	8-16 x 2.8-5.5 cm	6-11 x 2.5-4 cm	9-16 x 2.5-5 cm
leaf apex / base	short acuminate / broadly cuneate	acute / rounded	acuminate or caudate-acuminate / cuneate
leaf indumentum adaxially	almost glabrous	densely short-tomentose at midrib	glabrous
leaf indumentum abaxially	ferrugineus-pubescent, denser at midrib	densely ferrugineus or brownish-yellow appressed sericeous	minutely brown tomentose
lateral leaf veins	11-13 pairs	8-9 pairs	7-12 pairs
petiole length / indumentum	5-7 mm, densely ferrugineus pubescent	10-15 mm, densely cinnamon tomentose	5-10 mm, brown tomentose
peduncle indumentum	densely ferrugineus-tomentose	densely cinnamon-coloured tomentose	not known
tepal number and shape	7-9: external 3 tepals obovate, internal tepals narrowly obovate	15-16: spathulate-oblong (12-17, outer 3 tepals narrowly obovate, inner tepals obovate, or narrowly ovate§)	6-9: obovate-oblong#
stamen number and length	ca. 20, 10-15 mm	number not known, 4-5.5 mm	ca. 35 (photo#), length not known
filament length	4-5 mm	1-1.5 mm	not known
gynoecium length	narrowly cylindric, ca. 20 mm	cylindric, ca. 5 mm	not known
gynophore length	ca. 8 mm	ca. 1 mm	not known
immature carpels	ca. 20, densely yellow-brown sericeous, with 2-3 ovules each carpel	pubescent, most aborted	not known
gynophore in fruit	yellow-brown tomentose, 18-25 mm long	pilose, 2-2.5 mm long	ca. 20 mm long
fruit aggregates	7-13 cm long	2-3 cm	4-10 cm long
mature carpels	sessile, oblong or rounded, 1-1.8 x 0.9-1.3 cm with 1-3 seeds	obovoid, 1.5-2 cm x ca. 1.2 cm with 1 seed	broadly ovate or suborbicular, 1-1.8 cm long with 1-4 seeds.
flowering period	May (-June?)	January-February‡ December-January§	not known
fruiting period	November	October-November§	September¶

The differentiating features of Michelia septipetala are cited from Nong (1993) and Liao and Guo (2010) †; those of Michelia fujianensis from Zheng (1981) ‡, supplemented by Liu et al. (2004 : 260)§, with those of Michelia caloptila from Law and Wu (1984) and Liu et al. (2004 : 228)¶, who each note the flowers as then unknown, plus Yang et al. (2016 : 237)#.