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中国兰属一天然杂种(英文)



全 文 :A Natural Hybrid of Cymbidium From China
Liu Zhongjian
* Chen Singchi
ABSTRACT An intermediate between Cymbidium lancifolium Hook.and C.ensifolium (L.)Sw.is described
as a new hybrid of them:C.× oblancifolium I.J.Liu et S.C.Chen.It is widespread in southern Sichuan
Province in southwestern China.After being introduced into cultivation , it remains steady in its character and in-
dicates remarkable growth.It also exhibits great aesthetic values.
KEYWORDS Cymbidium ×oblancifolium , new species , natural hybrid , cultivation
 Liu Zhongjian.Shenzhen City Wutongshan Nurseries ,
Guangdong 518114 , P.R.China
Chen Singchi.Laboratory of Systematic &Evolutionary
Botany , Institute of Botany , Chinese Academy of Scienc-
es , Beijing 100093 , P.R.China

Author for correspondence.
Received December 21 , 2000
 A potted orchid flowered recently in Wutongshan
Nursery , Shenzhen , Guangdong Province , which
has been collected from southern Sichuan.It looks
like an intermediate between Cymbidium lancifolium
Hook.and Cymbidium ensifolium (L.)Sw., with
oblong-ovoid or ovoid pseudobulbs and oblanceolate
leaves that are obviously petiolate towards the base.
This entity is treated here as a new hybrid of the two
aforementioned species that are also found in south-
ern Sichuan of China.
 Cymbidium × oblanceolatum Z.J.Liu et S.
C.Chen , sp.nov.Figure 1
 Planta inter Cymbidium lancifolium Hook.et
Cymbidium.ensifolium(L.)Sw.quasi intermedia
et versisimiliter ex hybridizatione harum specierum
orta , quae differunt hoc foliis ensiformibus 30 ~ 60
cm longis basi non petiolatis scapo (20 ~ )25 ~ 40
cm longo , illud pseudobulbis cylindricis 3 ~ 15 cm
longis scapo 8 ~ 20 cm long bracteis 10 ~ 15 mm
longis.
 Terrestrial pseudobulbs oblong-ovoid or ovoid , is
slightly compressed to 1 ~ 2 cm long , ca.1 cm in
diam., with 2 to 4 sheaths outside , and sheaths are
pale brown and lanceolate , 1.5 ~ 8 cm long , 6 ~ 11
mm wide in acumination.Leaves usually 3 , gradu-
ally narrowing towards base.Leaf blade slightly
shining , and coriaceous.Oblanceolate , 5 ~ 20 cm
long , 1.2~ 1.8 cm wide in acumination.Petiole 4
~ 9 cm long , 2 ~ 3 mm wide , v-shaped , grooved
ventrally.Scape arising from the base of a pseudob-
ulb , ca.22 cm long , loosely 4-flowered.Bracts
linear-lanceolate , 5 ~ 7 mm long , 1.5 ~ 2.5 mm
wide.Pedicel and ovary 2.6 ~ 2.9 cm long , and
greenish.Flowers 3 ~ 4 cm across , pale greenish-
yellowish with 5 obsurely pale greenish nerves on
sepals and petals , a central brownish-pruple line on
lower half of petals , brownish-purple markings on
side-lobes and mid-lobe of lip , and brownish-purple
ventral surface of column.Sepals oblong-spathulate
or narrowly obovate-oblong , 2.7 ~ 3.1 cm long , 5
~ 7 mm wide , and acute and mucronate at apex.
Petals narrowly elliptic-oblong , more or less clasp-
ing the column , 2.2 ~ 2.4 cm long , 7.5 ~ 8.5 mm
wide , obtuse.Lip ovate in outline , ca.1.5 cm
long , 3-lobed.side-lobes erect , semiovate-oblong
and enclosing the column.Mid-lobe broadly ovate-
oblong or broadly ovate , 7.5 ~ 9 mm long , 5.5 ~ 6
mm wide , and recurved , shortly acuminate at apex.
Callus ridges 2 , running from the disc to the base of
mid-lobe.Flowering period is in November.
 Cultivated in the Wutongshan Nurseries , Shenz-
hen City of Guangdong Province , P.R.China , Z.
J.Liu 1001(Type , in Herbarium , Shenzhen City
Wutongshan Nurseries , Guangdong , P.R.China),
24 Nov.1999.
23
Forestry Studies in China 3(1):23 ~ 25
FIGURE 1 Cymbidium×oblanceolatum Z.J.Liu et S.C.Chen
1.Flowering plant ×2 3 , 2.Leaf ×1 ,3.Flower ×1 ,4.Perianth column ×1.5
 New species almost intermediate between Cym-
bidium lancifolium Hook.and Cymbidium ensifoli-
um (L.)Sw., and probably spring from the hy-
bridization of these species , from which the former
differs by having cylindric pseudobulbs 3 ~ 15 cm
long , scape 8 ~ 20 cm long and bracts 10 ~ 15 mm
long , and the latter differs by having sword-like
leaves 30 ~ 60 cm long without a petiole at base ,
and scape (20 ~ )25 ~ 40 cm long.
 New species is widespread and lies in southern
Sichuan with C.ensifolium and C.lancifolium.
After being introduced into cultivation in Wutongs-
han Nurseries , it is found easy to be cultivated and
cloned.
Literature cited
Lang Kaiyong , Chen Singchi , Luo Yibo et al.1999.
24 Forestry Studies in China ,Vol.3 ,No.1 ,2001
Flora reipublicae popularis sinigae.Beijing:Science Press.18 :191 ~ 227
中国兰属一天然杂种
刘仲健
(深圳市梧桐山苗圃总场 ,深圳 518114)
陈心启
(中国科学院植物研究所系统与进化植物学开放实验室 ,北京 100093)
摘要 该文描述了新种长叶兔耳兰(Cymbidium × oblancifolium Z.J.Liu et S.C.Chen),并推断是兔
耳兰(Cymbidium lancifolium Hook)与建兰(Cymb.ensifolium (L.)Sw.)之间的天然杂种.该种分布于四
川省南部.引种栽培后其性状稳定 ,繁殖率高 ,具有较好的观赏价值.
关键词 长叶兔耳兰 ,新种 ,天然杂种 , 栽培
25Liu Zhongjina et al.