中国杜英属小记

西植物 Guihaia28(3):288-2892008年5月Notes on Elaeocarpus(Elaeocarpaceae) from ChinaTAaLaboratory for Biodiversity and Environmental Studies, Department ofEnvironmental Sciences, Sichuan University, Chengdu 610065, China)Abstract: Having different characteristics of branchlets, leaves and perianth, Elaeocarpus hayata is treated as a dis-tinct species rather a variety of E sphaericus. E atro punctatus is reported from guangxi for the first time.Key words: Elaeocarpus; Taiwan: GuangxiCLC Number Q949, 757. 1 Document Code: a Article ID: 1000-3142(2008)03-0288-02pus hayata Kanehira Sasaki, Trans. tion GanitrusNat. Hist. Soc. Foan. 24: 398, t 2. 1934; KanehiraSince its leaves look similar to E. decipiens andFormosan Trees, rev. ed. 431, t. 388. 1936; Liu, Sasaki E. sylvestris, E, hayate sometimes has been treated asKeng, Quart. J. Taiwan Mus. 8(4): 306. 1955: H L. a synonym of these; however, as noted above E hayaLi, Woody Fl. Taiwan 533. 1963: C. E Chang, Quart. J. tae is in a separate section.Taiwan Forest. 3(2): 22. 1967Only two species of the section Ganitrus are recElaeocarpus sphaericus( Gaertner )Schumman ognized in China, of which E. angusti folius Blame isvar hayate(Kanehira Sasaki)C. E Chang in H. found in southern Yunnan, Elaeocapus hayate Kane-L, Li et aL. (eds ), Fl. Taiwan 3: 686, pL. 776. 1979 and hira Sasaki differs from E angustifolius Blume in aT. C. Huang(ed), Fl, Taiwan, ed. 2, 3: 718. pl. 366. number of characteristics including glabrous(vs. pubescent) branchlets, petioles, and abaxial leaf surfaceElaeocarpus sylvestris (Lour. ) Poiret var haya- smaller leaves (7-13 X 2.5-3. 5 vs 13-17 X 4-6 cm),fe-tae(Kanehira Sasaki)Y. C. Liu, Lign, Pl. Taiwan wer lateral veins(6-8 vs 10-13), veins and veinlets dis-376.1972tinctly(vs. poorly) anastomosing, sepals glabrous(vs.This species was originally described as havingberulent) adaxially, petal segments 13-15(vS 15-25)loculed ovary In Kanehira,s"Formosan Trees Re- and 4-or 5-loculed (vs 5-loculed) ovary and fruit. Invised Edition", the cross section of the ovary is illustra- view of these differences, we prefer to treat it as a dis-ted clearly as 3-loculed but the cross section of fruit is tinct species rather than a variety. In addition, up to5-loculed with 4 locules degenerating(Kanehira, 1936, date records of geographical distribution indicated thatg. 388: G D. Examination of type materials by C. they are allopatric. This species is endemic to TaiwanE. Chang revealed that the ovary and fruit are 4-or 5-The discovery of both 4-loculed and 5-loculed o-loculed(Chang, 1977, PL 766: 1, 4). In the infrageneric varies and fruit might be important in the study of evo-system of ElaeocarPus(Tang, 1992), species with 5- lution of this genus. E hayate is distributed in theloculed ovaries and fruit belong to Section Ganitrus but periphery of the section and the reduction in locules ofspecies with 2-or 3-loculed ovaries and 1-loculed fruit ovary and fruit might be derived.belong to Section Elaeocarpus. Since its ovary is 4-orElaeocarpus atropunctatus H. T Chang, Acta Phy5-loculed, E. hayate is certainly not a member of the tota. Sin. 17:52.1979Section Elaeocarpus but rather a member of the Sec-This species was described from Luoding, Guang-Received date: 2007-02-08 Accepted date: 2007-06-16中国煤化工基金项目:国家自然科学基金(3989940[ Supported by the National Natural ScienceCNMHG作者简介:唐亚(1963-),男,贵州盘县人教授博士,主要从事植物学和生态学方温吗x期唐亚:杜英属小记289ong Province, with two collections only. Since then no of Forest Sciences is duly acknowledged.other collections have been reported. In the course ofthis study, the author came to see two collections fromChang CE. 1977. Elaeocarpus[ MI//Li HL(eds). Taipei: Flora ofGuangxi, which are deposited at the herbarium, GuangxiTaiwan, 3: 686Academy of Forest Sciences (GXFI). This species is Chang CE. 1993. Elaeocarpaceae [M//Huang TC(ed).TaipeiFlora of Taiwan, 3: 714-721newan County, langKanehira R. 1936. Fortrees revised edition[M]. TaihokoShengye 2000003( GXFI), Pingxiang Municipality,Formosa: Department of Forestry, Government Research Institu-Daqingshan, Integrated Survey Team, 0691(GXFDte,431-434(in JapaneseAcknowledgements. This work is supported byLi HL 1963, Woody flora of Taiwan [M]. The Morris Arbore-um. Philadelphia, PA and the Livingston Publishing Co, Nar-grantationaberth, PA(NSFC39899400). Assistance of Prof. Liang Shengye Tang Y. 1992. Notes on the genus Elaeocarpus from China[J]Acta Phytotron Sin, 30: 385-404in accessing herbarium specimens at Guangxi Academy中国杜英属小记唐亚(四川大学环境科学系生物多样性与环境研究实验室,成都610065摘要:基于4~5室的子房和果实,以及不同的嫩枝、叶花被等特征,光叶球果杜英是一个明显区别于园果杜英的种。报道了黑腺杜英在广西的首次记录关键词:杜英属;台湾;广西④36633386368公6省自36863663636合8634663663己公(上接第319页 Continue from page319)参考文献The Evolutionary Significance of the Exine. Linnean Society Symposium Series No. 1. London: Academic Press: 251-308刘玉壶.1996.木兰科[M//中国植物志.北京:科学出版社: Walker J W.1976b. Comparative pollen morphology and phyloge-ny of the Ranalean complex[M]//Beck C B(ed). Origin and额尔特曼(中国科学院植物研究所古植物室孢粉组译).1978.Early Evolution of Angiosperms. New York: Columbia Univ孢粉学手册[M.北京:科学出版社Press:241-299cm13.6 mparative morphology and relation- Xu FX(徐风霞).19. en morphology of sevan/Agbabian VSh.1972. Pollen morphology of the family magnoli--XuFX(徐凤霞).1998 Study on pollen morphology of Kmeria(单性木aceae]. Grana, 12: 166-17兰属花粉形态观察] Guihai(广西植物),18(1):29-31ships of the Magnoliaceae.Ⅱ. 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