中國杜英屬小記

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中國煤化工基金項目:國家自然科學(xué)基金(3989940[ Supported by the National Natural ScienceCNMHG作者簡(jiǎn)介:唐亞(1963-),男,貴州盤(pán)縣人教授博士,主要從事植物學(xué)和生態(tài)學(xué)方溫嗎x期唐亞:杜英屬小記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中國杜英屬小記唐亞(四川大學(xué)環(huán)境科學(xué)系生物多樣性與環(huán)境研究實(shí)驗室,成都610065摘要:基于4~5室的子房和果實(shí),以及不同的嫩枝、葉花被等特征,光葉球果杜英是一個(gè)明顯區別于園果杜英的種。報道了黑腺杜英在廣西的首次記錄關(guān)鍵詞:杜英屬;臺灣;廣西④36633386368公6省自36863663636合8634663663己公(上接第319頁(yè) Continue from page319)參考文獻The Evolutionary Significance of the Exine. Linnean Society Symposium Series No. 1. London: Academic Press: 251-308劉玉壺.1996.木蘭科[M//中國植物志.北京:科學(xué)出版社: Walker J W.1976b. Comparative pollen morphology and phyloge-ny of the Ranalean complex[M]//Beck C B(ed). Origin and額爾特曼(中國科學(xué)院植物研究所古植物室孢粉組譯).1978.Early Evolution of Angiosperms. New York: Columbia Univ孢粉學(xué)手冊[M.北京:科學(xué)出版社Press:241-299cm13.6 mparative morphology and relation- Xu FX(徐風(fēng)霞).19. en morphology of sevan/Agbabian VSh.1972. Pollen morphology of the family magnoli--XuFX(徐鳳霞).1998 Study on pollen morphology of Kmeria(單性木aceae]. 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Different looks at the classification of the Xu fX(徐鳳霞),ⅪuⅪL(徐信蘭),HuXY(胡曉穎).2004a.PlenMagnoliaceae[C]//Liu YH, Fan HM, Chen ZY(eds).Proceed-morphology of five species from magnolia(五種木蘭屬植物的花ings of the International Symposium on the Family Magnoliae-粉形態(tài))[. Acta Bot Yurman(云南植物研究),26(1):83-88ae. Beijing: Science Press: 26-37中國煤化工(徐信蘭).200Praglowski J. 1974. Magnoliaceae Juss., World Pollen and Spore pollemanglietia( Magnoliae-Flora[M]. Stoclhokm: Almqvist & Wiksell,3:1-44CNMHG態(tài)U. J Trop Sub-Walker J W.1976a. Evolutionary significance of the exine in the trop bot(熱帶亞熱帶植物學(xué)報),12(4):313-317llen of primitive angiosperms[c//Ferguson IK, Muller J(eds)