全 文 ：广 西 植 物 Guihaia 15(4)．289—292
r 口 1
CHANGIOSTYRAX， A NEW GENUS
OF STYRA CACEAE FROM CHINA
ChcnTao (CarlTao Chen)
(Herbarium，SouthChinaInstituteofBotany，AcademiaSinica，Guangzhou 510650，China)
一 三
Abslract A new genus Changiostyrax is de．scribed from China and amendments arc made to the original des。
cription oftho new combinationChangiostyraxdotichocarpus．Thegenus is aliedto SinojackiaHu，but difersin
trunk without spines． buds wi th scales． flowers 4-merous． ebractcate， ca lyx tube trunca te， stamens 8，
equal， connective not prolonged，ovary gall-inferior，stigma entire， fruits obovate，8-ribbed， terminated by
a long ro~ttuna， tapering to base into a long stile． densely villose It is also similar to Ha[esia Elis in flowers
4-m~lous， butdifers prominenflyin fruits notwlnged A keyis givento【he genera ofStyracaceae
Key WOrd．~ Styracaceae； Bew genus ； Clmngiostyrax
Ⅵ，hne preparing a taxonomic review ofthe genus Sino]ackia Hu，the author has noticed
for the first time that the species dolichocarpa C．J．Qi．from Central China has no spines
which ate present on the trunks of other species．Further observations on both wild and culti—
rated species of the g~3．us indicate that S．dolichocarpa C．J．Qi difers from other representa-
tives of the genera of Styracaceae in a number of characters， espe cially those of flowers and
fruits．It scems adequate to ascribe this spe cies to an additional genus． Changiostyrax．
This new genus is alied to Sinojackia Hu but differs in trunks withort spines，buds with
scales， racemes umbelate， flowers 4-merous． ebracteate， calyx truncate， corolla
4-lobed ， stamens 8，equal in elngth，connective not prolonged beyond the loculi， ovary
half-inferior， stigma entire， fruits very long， densely viUose， obovate， 8-ribbed， termi—
mated by a long rostrum and tape ring to base into a long stipe．It is a／so similar to the genus
Halesia Elis in buds with sca les， flowers 4-merous， ebracteate， and connective not pro．
1onged， but in that genus the calyx tube 4(一5)一toothed or subentire stamens of 2
unequal lengths， stigma 4-lobed， ovary inferior，2—4_10cuhr， each Iocule with 4 ovules
，
fruits prominently 2一or 4-winged， terminated by a pe rsistent style base．
The genus is named in honor of professor H．T．Chang． Curator of Herbarium of
Zhongshan (Sunyatsen) University，whose rich knowledge of Chinese botany have cod．
tributed a great deal to plant systematics．
Up to date， 12 genera have been reco gnized in the family Styracaceae．Ofwhich l】are
represented and 3 ate en demic in China．The following is a key to the genera ofStyraca ceae．
Key to the genera of Styracaceae
L S协men5 leavesentire，tmsty-tomentosewith stellatehaire ⋯ ⋯ 1． Pampkilia M art．
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广 西 植 物 15卷
1．Stamen more than 5： leaves dentats⋯ ⋯⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ‘” 2
2．Inflorescence compound—dichotomous ⋯⋯ ⋯⋯ ⋯ ⋯ ⋯ ⋯ 2’Bruinm ia Boer1．et Koord．
2 Infloresce nce not dichotomous ⋯ ⋯ ⋯ ··⋯ ··⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ·⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ·3
3 Ovary almost completely superior⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ 4
3．Overy 2／3 to completely inferior··⋯ ·⋯ ⋯ ⋯ ⋯ ⋯⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ‘‘‘⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ 5
4．Seeds winged at both ends； filaments connate tO top into a tube； fruit a capsule ⋯ ⋯ ⋯
⋯ ⋯ ⋯ ⋯ ⋯ ⋯ · ·· ⋯ ⋯ ⋯ · ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ · · 3．Alniphyllmn M atsum
4．Seeds wingless； filaments free or connate only at base； fruit various ···⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯
⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ · ⋯ ⋯ ⋯ ⋯ · ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ·⋯ 4 Styrax Linn．
5 Connective prolonged beyond the loculi ⋯ ⋯ ⋯ ⋯ ··⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ···⋯ ··⋯ ··6
5．Connective not prolonged beyond the loculi⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯⋯ ⋯ ⋯ ⋯ ⋯⋯ ⋯ 7
6．Connective 2-3一toothed ； fruit a loculicidal ca psule，not rostrated； trunk without
spines⋯ ⋯ ·⋯⋯ ·⋯ ⋯ ⋯ ⋯ ·⋯ ⋯ ⋯ 一 ⋯ ⋯ ⋯ ··⋯ ⋯ ⋯ ⋯ ⋯ ··⋯ ⋯ ” 5．Huodendron Rehd．
6．Conne ctive entire； fruit indehiscent． rostrated； flunk with spines ⋯ ·⋯ ⋯ ⋯ ··⋯ ⋯ ⋯ ⋯
⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯‘⋯⋯⋯⋯·⋯⋯⋯··⋯·⋯⋯⋯⋯⋯⋯·⋯⋯·”6．Sinojackia Hu
7．Flowers 4-m erous ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ·⋯ ⋯ ⋯ ⋯ ·⋯ ⋯ ⋯ ··⋯ ·⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ·8
7．Flowers more than 4-merous⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ·⋯ ⋯ ⋯ ⋯ ··⋯ ⋯ ⋯ ⋯ ⋯ ⋯ 9
8．Calyx tube 4-or rarely 5一toothed； fruits glabrous． 4一or 2-winged． terminated by per-
s~tent style base ⋯⋯ ⋯ ⋯ ·⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯·⋯ ⋯ ·⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ 7 Halesia Ellis
8．Calyx tube truncate；fruits densely viHose and stelatopilose
，
8-ribbed， with 1ong ros—
trum and stipe ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ‘⋯ ‘⋯ ⋯⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ‘‘‘‘⋯⋯ ·⋯ ··8．Changiostyrax Chen
9 Flowers solitary or fasciculate；ovary imperfectly 5一locular ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯
⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ‘⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ·⋯ ⋯ ⋯ ··～ 9．M eIllodendron Hand．一M azT-
9．Flowers in race mes ， cymes or panicles； ovary 3-locular
． rarely 4—5一locular ⋯ ⋯ ⋯ 10
10．Flowers densely arranged ；fruits not winged and ribbed ． terminaly umbonulated ⋯ ⋯
‘⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯⋯ ⋯ ⋯ ‘⋯ ⋯ ⋯ ‘⋯ ‘‘⋯ ⋯⋯ ⋯⋯ ⋯ ⋯ ⋯ ⋯ ⋯ 。10 Parastyrax Smith
10．Flowers loosely arranged；fruits ribbed or winged ·⋯ ·⋯ ⋯ ⋯ ⋯ ⋯ ⋯⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ·1 1
1 1．Stigma obscurely 3-lobe d； fru its smal， O．8—2．5 cII long
． obscurely 5 ～ 10 ribbe d or
5-winged， terminated by a rostrum ··⋯ ⋯ ⋯ ··⋯ ⋯·⋯ ⋯ ·1 1 Pterostyrax Sieb． et Zucc．
1 1．Stigma entire； fru its large， 3．5～ 12 cm long
， 5—10一ribbe d or smooth． not winged and
rostrated ⋯ ⋯ ⋯ ⋯ ·⋯⋯ ⋯⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ．．⋯ ⋯ ．．．⋯ ⋯ ．．．
⋯ ⋯ ⋯ ⋯ ⋯ ⋯ ‘ ’ ⋯ ⋯ ⋯ ‘ 12． Rehderodendron Hu Imngiostyrax C．T．Chen， gen．nov,
Genus novum Sinojackiae Hu afine，sed trunco sine caulinispina，gemma squamata，
racemo umbelliformi， flore ebracteato， 4-mero， apice calycis truncato
， lobis corollae 4，
staminibus 8， aequilongis， connectivis lion prolongatis
，
ovario semi-infero， stigmate
indiviso，fructu longissimo， apice rostro acuminato
， in medio obovato， 8-anguloso， ver-
sus basin gradatim angustato in stipitem distincta
， GeGnus Halesia Ellis similaris， sed
fructibus sine alis difrerL
Flores albi，in racemos umbelliformes dispositi； pedicelis viHosis； calycis tubus
turbinatus，dense vilosus，medio ovarii dentibus non notabilibus；corolla adnatus
， apice
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4期 陈 涛： 中国安息香科一新属——长果安息香属 291
truncatus，campanuhata．4-partita，lobis imbricatis villosis； stamina 8，aequilonga，1-seriata
prope basin co rollae inserta，fthamentis linearibus，in brevi-tubum parte inferiore connatis
superiore liberis； antherae oblongae, Iongitudinaliter dehiscentes， connectivis non
pro1ongatis； ovarium semi-inferum
，
4- loculare，extus lanatum； stylo lineari，stigmate
terminale haud lobato； ovula 8
，
in quoque loculo 2-seriata． Fructus longissimus，ligneus，
indehisccns，estus dense vitlosus ex stellato—pilosus，apice longissime rostratus，in medio
obovatus，8-angulosus，versus basin angustatus et longissime stipitatus
， exovarpio tenue，
mesocarpio suberoso
，
end0carpio lignco indurato Semen l oblongo—lineare，testa crnstacea
，
albumine carnoso．Arbor decidua； gemmae ovoideae squamatae．Folm alterna
，
chartacea，
haxe minute serrata，exstipuhatm
Species unica：a dolichocarpus(c．J．Qi)c．T．Chen．Hunaniae bo reo-oceidentalis
incoh．
Changiost~rax dolichocarpus(C．J．Qi)c． Chen,comb．nov,
SinojacMadol~hocarpaC．J．QiinActa Phytotax．Sin．19(4)：526-528．1981．tab．1．
527；S．M．HwanginF1．Reip．Popu．Sin．60(2)：145～147，1997；C．J．QiinL．K．Fu，
Chim Red Data Book．1：638-639．1992．
Descriptio emendata： Fructns 7 ～ 8 cm longus
，
apice longissime rostratus，2 ～ 4 cm
longus，in medio obo vatus
， o．8 ～ 】_1 cm diametro、8-angulosus， versus basin gradatim
angustatus in stipitem
， stipite 2 ～ 3．5 cnl longo，exocarpio tenue， extus grisco —brunneo—
villoso，mesocarpio suberoso
，
endocarpm ligneo indurato octo-vel sedecim—gono in sectione
tramversali,stipite fruetifero 1．5-2．5 cm longo．
Deciduous trees 8 ～ 12 m tall
, trunk grayish brown．12 ～ 25 cln in chest—height
diametex．Current year’s shoots reddish brown
,
glabrous
， longitudinal striate,second year s
branches pale brown,bark vertically fissured and peeling off．Bud with scales ．Leaves alternate．
chartaeeous； pe tiole 4-7 mm long； blade ovate—oblong or oblong 8～ 13 cm long
,
3．5 ～
4．8 cm wide，ape x acuminate，base rounded or broadly cuneate
， margin rim otely and minutely
dentate，with 8 ～ 10 pa irs of lateral veins
， sparsely pubescent in vein axils beneath，glabrous
elsewhere． Flowers late M arch to April Inflorescences alteral on sec ond year s branches
．
umbelate racemes， (3～ )5～6 flowered，ebracteate．Pedicel I．4～2．5 cm long,gray
lanu te-vilose．Calyx turbina te
， densely gray lanate—villose，apex truncate．Corolla yellowish
white,deeply 4-parted
， lobed imbrecate， elliptic--oblong, 9 ～ 14 mm long, 5 ～7 mm wide．
villose outside．Stamen 8
， equal in length， 7～ 10 mm long； filaments ling-linear，united at
base； anthers oblong
， Iongitudinally dehiscent．Ovary ha lf-inferior、 4-locular．1ana te．Style
subuhate，6 ～ 8 mm long．Stigma entire．Ovules 8 in each cel
， 2一seriate．usually most
und evelope d-Fruits 7-8．5 cm long
, ape x with long rostrum，2 ～ 4 cm long, obo va te at mid．
die,0．8～ l_l cm in diameter
， longitudinally 8-ribbe d，tapering to base into a stalk． 2～ 3．5
cm long； exocarp thin, densely grayish brown villose； mesocarp corky； endocarp woody
,
ha rd．octo—or sed ecim-gonal in cross section：Fruiting pe dicel 1
．5-2．5 cm long．Seed 1．0b．
1ong--linear，ca ．1 cm long,smooth．
Thebasic chromosomelulnberofthe speciesis 2n=24 (to bepublished)．
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q}
7 广西植物
， 0)
15卷
Hunan： Shimen in valley along stream，AlL 400m，June 29，1979．P．C·Cai 20049
(type ofSinojackia dolichocarpa C．J．Qi at CSFI!．isotype at IBSC!)；ib·Alt·450 m，April
30．1980．P．C．Cai 80—01(CSFI)；ib．Alt340in June 21，1983．B．三 Wu 83002 (CSFI)；
ib．Alt．480 11．May 30．1987．C．L．Long 87323(CSFI)；Sangzhi，in valey near stream,A儿，
560 mOcL 15，1994．C．T．Chen et a1．940004 (IBSC)；lb．Alt．AlL 560 m’April 30，1995·
C．T．then95o4020 (msc)．
Acknowledgement I am gratefulto professors T．Chen (IBSC)．L．K．Fu (PE)，C．
M．Hu (IBSC)．S．K．Lee(IBK) and L．wu (IBSC) forthe reaidngofthemanu-
script ofthis paper,and to profesors H．S．Kiu (mSC) and Y． Lin (IBSC) for their
kind assistance． This work was supported by a Special Foundation for Biological Taxonomy
and Floristic Resea rch in Aid No．930136 from the Chinese Academy ofSciences．
中国安息香科一新属——长果安息香属
(中国科学院
摘 要 本文描述了安息香科一薪属——长果安息香属
∞(；? 『，‘7 夕
并对新组合长果安息舂的原始描述作了修
订·本属与秤锤树属近缘，但树干无茎刺，具鳞芽 ，总状花序伞形，花无苞片， 四基数，花萼管
顶端平截，花冠 4深裂，雄蕊 8，等长，药隔不突出，子房半下位，柱头不分裂，果实特长，密被
长柔毛，上部果喙细长， 中部倒卵形，具 8条纵梭，下部渐狭，延长成柄状，可以区别．本属的芽
具鳞片，花无苞片．四基数．与银钟花属相似，但后者的花萼管顶端具 4裂片，雄蕊 8～I6，不等
长t子房下位．柱头4分裂，果实无毛，具 4或 2翅和缩存花柱基部．无果喙，与前者明显不同．
文中还给出了安息香科分属检索表．
关键调 爱思普科；堑显 堡墨塞皇量星
一 一 ! ．
，
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