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广 西 植 物 Guihaia 15(2):1l0一l】1 1995
中国山龙眼属植物=新种
丘 华 兴
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擒 要 山龙鼹属植物在我国南部的常绿林中为较常见的树种.作者在编写 《Flora of China》
的山龙眼科植物对.发现华南地区的山龙眼属植物中有2个新种.它们是生长于广东阳春县西南 .
部的用春山龙眼和生长于广西十万士山的东兴山龙眼;现予报道.
关键词
。 兰! 璺 里壹些垄里;
TW 0 NEW
新种
SPECIES OFHELICIA LOUR
.
(PR0TEACEAE)FROM CHINA
Kiu Hunshing (Qiu Hua-xing)
(South China In stitute of Botany,Academia Siaica.Guaagzhou 510650)
Abst ract Two flew taxa of Proteaceae from southern China: H elicia yangch~n—
ensig and H oH口 gensfs are described.
Key wo rds H elicia; . aH口r^ ens拈 ;H .dDn口 ing s s
1 甩●山龙眼 新种 石拐李 (阳春 )
Helicia yangehunensis H.S.Kiu.sp.n0v.
Speoiss affinis H .1Ongipetiolatae Mort. 白t Chun, ned ramulis novelli*
forrugineo-pubesoontibus。floribi18 minoribus differt.
Arbusoula 4— 6 m alta.Ramulis novellis st inflorescentiis adpresso ferrugineo—
pubescentibus,ramulis castanets,te~stibus,glabratis.Folia obloriga vel ovate—
oblonga,subco~Iseea,7—11 em longa 3—4.5 em lata, supr~virtdla, glabrata, ’
mlbtus 80on8 costam leviter puberula, integra, bast in potiolum ouneata et
doourrsntia,apice abrupte aouta vel’obtuse aouta;nezvis primaris utrinque :
6_一8,distantibus, furoatis, ante marginem a~uato—anastomosantibus, subtus
leviter elevatis|pstiolus 1.5—2 em longusJ pubesoensJ demum glaber.Raeemu~
7~ 8 om longus,solitarius,axillariS v白】in axillis foliorum deoiduorum ;braoteao
deltatae,eireiteg 1 mm longae,pubescentes!braoteolao parcae,0.5 mm longae.
Pedieeni plerumque gemin~,basi connati,3 mm longi. 1)~viantb2um alb~dium,
l4一I5 mm longmn,adFtesse pilosum.Antherae 3 mm longae.Olandu]ae hypogym~e
虹 disee annulato 4- lobate connatae.Ovarium glabrum. FzuotuS ellil~oidous.
breviter apieula~us,basi paullo Oontraotus, m~turu8 atroviridis, o. 1.7 em
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2期 丘华兴:中国山龙眼属植物二新种 111
longus,1.5 om diam.,pertcarpto corti~eo,1 Him OTa,~.qSO! pedice]lo 3·5—.| mm
longo·
Gn-ngd蛐 Yangchum(阳春 ),Sanjia tong(仙家垌 ),valley,air·700 m’
May 28,1957,Zhanjiang Exped.3261(typuS.IBS0,SYS)|ibidem,along 8Lreal~l,
.alt.650 m,Ju1.15, g4,Ⅱ G.Ye(叶华谷)1曲4(f1.IBSC);Bajia(八甲),
ridge日of ro~ky mountain,Nov.9,1935。 a。W ang 38711 (fr.,IBSO),ibidem, in
如z t9,alt.700 m,Oct.10,1990,fruit dark gre~n,N.Liu (刘念 ),792 CIBSG).
本种近长柄山龙眼 Helicia longipefiolata Merr.et OhⅡ口,但嫩枝,叶被锈色柔毛,
花较小,长约1.5cm,彼此不同。
本种生长于广东阳春河尾山一带的花岗岩石山或溪谷的密林中,木材坚硬,果深绿色;
当地叫 石拐李”,除作农具外,亦被选作烧木炭
2 京兴山龙眼 新种
Helieia d0ngxiⅡgensis Ⅱ.S.Kiu,q p.nov.
H .cauliflora¨ ct.non Mevr.:Ⅱ.S.Kiu in F1.Reipub1.Po~a]ariS Sin.
24I16. 1988.
Species affinis日.eauliJlorae Merrill,a qua fJorlbus minoribus,2.5 cm
longis,differt.
Arbor parv~,5— 8 m al~a,infloreScen~iis excepti目glabra. Folia lanc~olaea
vel oblongo—lanceolaea, coriaceaJ 13-20 cm longaJ 2
. 5— 4 cm lata。 m ar Ⅱe
margina~o, iv~tegra vel rare serrnlataJ apico aeuminata, basi ouneata et
suh4e~.1rr6ntia ∞8ta supr~pa 1O impr明q8}nervis prlma~iis utrinquo 7~ 1O,
distantibu~,in par~e ba~ali suberectis,superne arcua~o—ans~tomosantibus,subtus
loviter e]evatis;pe~iolus 1— 2
. 5 om long~s.Racemus 11— 12 Om longus,soli~arius,
in ramls veCusLisJ prunneolo-puberulus braeeeae subula~ae. circieer 1 mm
longae·Pedicelli plerumque gemini,u~que ad medium eonna~iJ 2
. 5—3 mm Iongi.
Perianthium albidiu~n,circiter 2.5 om longum,pjlozum.Antherae 4 Iilm longae.
Glandulae hyl~gynae in eupulam erena~am OOnⅡatae. Ovarium glabrum.
Fruetus ovoideus,apico abrupte rOsttah ,basi brevit~r substipitato—oOn nc七u8
,
brunneolus,eirciter 2
. 5 em longus, 2 cm diam ., periear。pio corLiceo 1 m m
oraSso·
Gusngxi:Fangcheng(防城 ),Mt.Shiwan Dashan(十万大 山 ).valley,moist
forest,sit·450 m,S.Ⅱ.Chun 4463 (typus, IBSO),ibidem,alt. 170 mJ 29
, Mar.
1944,S.Ⅱ.Chun 4837(IBSC) Shangsi(上思 ),Mt.Shiwan Dashan,aIt.300ⅢJ
12,Feb-1944,8·Ⅱ·Chun 4543 (IBSC);ibidem,May, 1994
, Y.Q.Xue(薛跃规),
刚 O5033 (f1., Y8).
本种与生长于越南的 H.cauliflora近缘,
本种生长于广西南部十万大山的潮湿密林,
但花较小,长仅2.5 cm,彼此不同。
其叶具叶缘,曼与其它国产种类区分。
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