2024年2月6日发(作者:任宏伟)
广西报春苣苔属一新种--泡叶报春苣苔
陆仕念;符龙飞;梁桂友;温放
【摘 要】A new species ,Primulina bullata S .N .Lu & Fang Wen ,which
grows in limestone hills and limestone caves from Guangxi is described
and illustrated .It is similar to P .liboensis(W .T .Wang &
D .Y .Chen)Mich .Möller & A .We‐ber and
P .gueilinensis(W .T .Wang)Y .Z .Wang ,but iffers above‐mentioned two
relatives by having erect pubescence on both leaf blade surfaces ,upper
surface of leaf blade with distinctly rounded ,bullate projections ,(1)2 -9 or
more cymes , longer peduncle ,(4 .0)8 .5 - 15 cm ,linear or linear‐lanceolate
bracts ,ca .7 mm × 1 mm ,largerflower ,4 .2 -5 .3 cm long , purplish‐pink
corolla ,staminodes longer ,13 -15 mm long ,flowering time in November .%
报道了分布于广西石灰岩山地及岩溶洞穴的苦苣苔科 Gesneriaceae 报春苣苔属
Primulina Hance 一新种———泡叶报春苣苔 P .bullata S .N .Lu & Fang Wen .泡叶报春苣苔与荔波报春苣苔 P .liboensis(W .T .Wang& D .Y .Chen)Mich .M迸ller & A .Weber 和桂林报春苣苔 P .gueilinensis(W .T .Wang)Y .Z .Wang 相近,以叶两面均具直立柔毛,叶上面呈显著泡状,具较多花序,(1)2~9条,花序梗较长,(4.0)8.5~15 cm ,苞片线形或线状披针形,大小为7 mm ×1 mm ,花大,长4.2~5.3 cm ,粉紫色,退化雄蕊较长,13~15 mm ,花期在11月而区别.
【期刊名称】《广西植物》
【年(卷),期】2013(000)001
【总页数】5页(P42-45,81)
【关键词】报春苣苔属;广西;苦苣苔科;泡叶报春苣苔;新分类群
【作 者】陆仕念;符龙飞;梁桂友;温放
【作者单位】靖西县林业局 林业种苗试验站,广西 百色 533800;广西师范大学,广西 桂林 541002; 广西壮族自治 区中国科学院广西植物研究所,广西 桂林
541006;广西壮族自治 区中国科学院广西植物研究所,广西 桂林 541006;广西壮族自治 区中国科学院广西植物研究所,广西 桂林 541006
【正文语种】中 文
【中图分类】Q949
原唇柱苣苔属Chirita Buch.- 是一个以我国华南、西南为分布中心的苦苣苔科Gesneriaceae大属,我国分布有3个组,即唇柱苣苔组accus,麻叶唇柱苣苔组a和钩序唇柱苣苔组hirita(王文采,1990;王文采等,1998;李振宇等,2004;韦毅刚等,2010)。然而在2011年对该属的修订中,原唇柱苣苔组以及文采苣苔属Wentsaiboea & (仅其中的2个种文采苣苔lia
& 和罗城文采苣苔ngensis Yan Liu & )(Liu et al.,2010)以及唇柱苣苔组的近缘类群——小花苣苔属Chiritopsis 被并入我国的一个特有单型属——报春苣苔属Primulina Hance内,钩序唇柱苣苔组被提升为钩序苣苔属Microchirita(),而原麻叶唇柱苣苔组中大部分的种以及另一个单型属,密序苣苔属Hemiboeopsis 被并入汉克丽亚花属汉克丽亚花组Henckelia lia中,少数种则并入一个重新恢复的属——Damrongia Kerr ex Craib之中,而原唇柱苣苔属中的ia也被提升为属,即Liebigia Endl.(Wang et al.,2011;Weber et
al.,2011)。
广西是原唇柱苣苔属唇柱苣苔组,如今的报春苣苔属的主要分布中心,但该属除了少数种,如蚂蝗七Primulina fimbripala(Hand.-Mazz.)、牛耳朵a(Hance)、神农架报春苣苔uba()等之外,绝大部分为狭域分布的物种,常仅见于一两个石灰岩山地山头或岩溶洞穴。作者近几年关注于广西石灰岩山地以及石灰岩岩溶洞穴的苦苣苔科植物的研究,在对这一特殊的,分布于极为狭窄的区域的该类群植物进行详细的野外考察过程中,在广西境内的石灰岩山地林下、岩溶洞穴分别采集到许多该科植物的标本,其中部分当时被鉴定为未详知种。在对这些植物进行充分和长时间的野外定点观察和生物学性状调查,我们发现其中分布于靖西县(百色市)一个报春苣苔属物种在相关的苦苣苔科植物文献与专著中(王文采,1990;Wang et al.,1998;李振宇等,2004;韦毅刚等,2010;Liu et al.,2010,2011;Xu et al.,2010;Tang & Wen,2011;Weber et al.,2011;Wu et
al.,2011;Xu et al.,2010,2011)均无记载,是未被描述的新分类群。
泡叶报春苣苔 新种 图1
Primulina bullata & Fang Wen,.1 & 2.
It differs from Primulina liboensis( & )Mich.Möller &
and nensis() (Table 1) having erect
pubescence on both leaf blade surfaces,upper surface of leaf blade with
distinctly rounded,bullate projections,(1)2-9 or more cymes,longer
peduncle,(4.0)8.5-15 cm,linear or linear-lanceolate bracts,ca.7 mm×1
mm,larger flower,4.2-5.3 cm long,purplish-pink,staminodes longer,13-15 mm long,late flowering time in Nov.
Perennial herbs. Rhizome subterete,1.5-3.5 cm long or longer,1.0-1.5
cm in diameter. Leaves 6-12 or more,all basal,three leaves verticillate;petiole compresd,cross ction mi-elliptic,2-7.5 cm long,0.6-1.1
cm wide,short puce strigo on both surfaces;blades dark-green,coriaceous or stiffly chartaceous,obliquely ovate,elliptic to broadly
oblong-ovate,left-right asymmetric or symmetric,(5)11-13.5 cm×(3.5)7-9.5 cm,upper surface distinctly bullate,cuneate at ba,commonly
symmetric,occasionally oblique,margin with 15-25 crenation on each
side,acuminate,obtu or round at apex,with erect pubescence on
both surfaces,margins with tricholoma,pubescence 0.5-1 mm long,all
veins commonly silvery white,lateral veins 4-5 on each side,impresd
adaxially and prominent abaxially. Cymes axillary,(1)2-9 or more,1-2-branched,(1)3-9 or more flowers on one cyme;peduncle(4.0)8.5-15 cm
long,slender,(1.5)1.9-2.2 mm in diameter,erect white-pubescent;bracts 2,opposite,purplish green,linear or linear-lanceolate,ca.7×1
mm,margin entire,obtu at apex,appresd purple-pubescent outside,glabrous inside. Bracteoles 2,opposite,shape,hairs and colour the
same as bracts but apex acute. Pedicel 6-11 mm long,calyx 5-parted near
to the ba,lobe narrowly lanceolate-linear,8-11×2-2.5 mm,margin
entire,acute at apex,appresd white pubescent outside,glabrous
inside. Corolla 4.2-5.3 cm long,nearly glabrous outside,but sparly
short purplish red strigo along the back of corolla,glabrous inside;tube funnel-formed,purplish-pink,2.5-3.0 cm long,0.8-1.2 cm in
diameter in medium,1.2-1.5 cm in diameter at the orifice;throat with
two yellow lines;limb distinctly 2-lipped,purple or purplish pink,adaxial
lip 2-lobed to or over the middle,lobes ovate or nearly orbicular,0.9-1.1
cm×ca.0.9 cm,obtu at apex,with two deep purple lines inside;abaxial
lip 3-lobed over the middle, two lateral lobes inapparently obliquely
ovate or oval,the central one oblong,12.5-15 mm×10.5-12 mm,rounded at apex. Stamens 2,adnate to 1.2-1.5 cm above the ba of the
corolla tube;filaments geniculate near the ba,1.3-1.5 cm long,glabrous;anthers subreniform,slightly contracted in the middle,3.5-4.5
mm long,glabrous. Staminodes 3, lateral ones 6.5-8.0 mm long,
glabrous,adnate to 12-15 mm above the ba of the corolla tube,middle one ca 0.5 mm long,adnate to ca.3-4 mm above the ba of the
corolla tube. Disc annular,1.0-1.5 mm high,margin repand or entire.
Pistil 2.8-2.9 cm long,ovary linear,ca.2.3 cm long,ca 1.4-2.0 mm in
diameter,glandular-pubescent;style ca.5-6 mm long,nearly glabrous;stigma obtrapeziform,ca.2 mm long,apex 2-lobed. Capsule not en.
Flowering in Nov.
China(中国),Guangxi(广西):Jingxi County(靖西县),Hurun Town(湖润镇),From Da’ai vil-lage to Dongba village(从达爱村到东巴村途中),on the
moist rock face near to road and at the entrance of limestone caves,rare,526 m a.s.l.,09 Oct.2010,Fang Wen & WFBCJT11110901(holotype:
IBK;isotype: BJFC).
本种与荔波报春苣苔Primulina liboensis( & )Mich.Möller
& 和桂林报春苣苔nensis()在亲缘关系上相接近,但叶两面均具直立柔毛,叶上面呈显著泡状,具较多花序,(1)2~9条,花序梗较长,(4.0)8.5~15 cm,苞片线形或线状披针形,大小为7 mm×1 mm,
花大,长4.2~5.3 cm,粉紫色,退化雄蕊较长,13~15 mm,花期11月,可以区别(表1)。
致谢 承蒙林文宏先生为本文绘图,在此表示衷心的谢意!
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李振宇,王印政. 2004. 中国苦苣苔科植物[M]. 郑州:河南科学技术出版社:171-261
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