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黑山紫菀Aster nigromontanus Dunn

黑山紫菀Aster nigromontanus Dunn

科名:菊科 Compositae

属名:紫菀属 Aster

《中国植物志》第74卷191页
  44. 黑山紫菀 图版49:5-8
  Aster nigromontanus Dunn in Journ. Linn. Soc. 35: 501. 1903; Griers. in Not, Roy, Bot. Gard. Edinb. 26: 112. 1964, in adnot; S. Y. Hu in Quart. Journ. Taiwan Mus. 18: 295, 1965.
  多年生草本,有根状茎。茎直立,高40-50厘米,稍细,上部常屈折,有细沟及棱,上部被密粗毛。单生,稀丛生,上部有短枝和较疏的叶。基部叶在未抽茎以前密集,叶片长圆形,长4-6厘米,宽1.5-2.5厘米,急狭成具翅或具1-3个小裂片的长(达2.5厘米)或短柄,边缘有疏齿,顶端尖或急尖。下部叶在花期枯落;中部叶卵圆或椭圆形,披针形,长9-13厘米,宽2.5-4.5厘米,基部渐狭或急狭,楔形或圆形,无柄或有长达2毫米的柄,顶端尾状长尖,边缘除下部外有具长尖头的锯齿;上部叶长圆形,有浅齿,全部叶质稍厚,两面被疏毛,常有腺,下面除沿脉外脱毛,中脉在下面凸起,侧脉7-9对,网脉显明。头状花序径1.5-1-8厘米,多数在枝端排列成复伞房状;花序梗长1-2厘米,有线形苞叶。总苞宽钟状,长4-5.5毫米,径6-7毫米;总苞片2-3层,线状披针形,长4-5.5毫米,宽0.8-1毫米,顶端长尖,外层绿色,被密毛及腺,内层除被毛的中脉外干膜质,上部边缘常红紫色,有缘毛。舌状花30余个,管部长2.5毫米,舌片白色,长5-6毫米,宽0.8-1毫米,有显明的2脉;管状花黄色,长5毫米,管部长1.5毫米,裂片长1.3毫米;花柱附片长0.3毫米。冠毛污白色,长约3.5毫米,有多数近等长的微糙毛。瘦果倒卵圆状长圆形,长达2毫米,宽0.8毫米,两面各有1肋。果期11月。
  产于云南(景东、蒙自)。生于山坡草地。海拔1500-2100米。模式采自云南蒙自。
  此种曾被 Handel-Mazzetti 合并于锡金紫菀 (A. sikkimensis Hook.) 中,但Grierson 认为是独立的种或后者的地理亚种。它与后者的区别是叶有短柄和较密的锯齿,两面常被毛且总苞片被较密的毛。此种也与密叶紫菀 (A. pycnophyllus W. W. Smith) 显然接近,但叶形有显著的区别。此种的全形略似三脉紫菀 (A. ageratoides Turcz.);但这两种的叶脉、舌片、总苞片构造等都不相同。又据 Grierson, 此种的总苞片近无毛,但在我们见到的植物上有毛。
形态特征:多年生草本,有根状茎。茎直立,高40一50厘米,稍细,上部常屈折,有细沟及棱,上部被密粗毛。单生,稀丛生,上部有短枝和较疏的叶。基部叶在未抽茎以前密集,叶片长圆形,长4—6厘米,宽1.5—2.5厘米,急狭成具翅或具1—3个小裂片的长(达2.5厘米)或短柄,边缘有疏齿,顶端尖或急尖。下部叶在花期枯落;中部叶卵圆或椭圆形,披针形,长9—13厘米,宽2.5—4.5厘米,基部渐狭或急狭,楔形或圆形,无柄或有长达2毫米的柄,顶端尾状长尖,边缘除下部外有具长尖头的锯齿;上部叶长圆形,有浅齿,全部叶质稍厚,两面被疏毛,常有腺,下面除沿脉外脱毛,中脉在下面凸起,侧脉7—9对,网脉显明。头状花序径1.5—1.8厘米,多数在枝端排列成复伞房状;花序梗长1——2厘米,有线形苞叶。总苞宽钟状,长4——5.5毫米,径6—7毫米;总苞片2—3层,线状披针形,长4—5.5毫米,宽o.8—1毫米,顶端长尖,外层绿色,被密毛及腺,内层除被毛的中脉外干膜质,上部边缘常红紫色,有缘毛。舌状花30余个,管部长2.5毫米,舌片白色,长5—6毫米,宽0.8—1毫米,有显明的2脉;管状花黄色,长5毫米,管部长1.5毫米,裂片长1.3毫米;花柱附片长0.3毫米。冠毛污白色,长约3.5毫米,有多数近等长的微糙毛。瘦果倒卵圆状长圆形,长达2毫米,宽o.8毫米,两面各有1肋。果期11月。
产地分布:产于云南(景东、蒙自)。生于山坡草地。海拔1500—2100米。模式采自云南蒙自。
本种提示:此种曾被Handel-Mazzetti合并于锡金紫菀(A.SikkimensisHook.)中,但Grierson认为是独立的种或后者的地理亚种。它与后者的区别是n十有短柄和较密的锯齿,两面常被毛且总苞片被较密的毛。此种也与密叶紫菀(A·pycnophyllusW。W。Smith)显然接近,但叶形有显著的区别。此种的全形略似三脉紫菀(A.AgeratoidesTurcz.);但这两种的叶脉、舌片,总苞片构造等都不相同。又据Grierson,此种的总苞片近无毛,但在我们见到的植物上有毛。
参考文献:AsternigromontanusDunninJourn.Linn.Soc.35:501.1903;Griers.InNot,Roy,Bot.Gard.Edinb.26:112.1964,inadnot;S.Y.HuinQuart.Journ.TaiwanMus,18:295,1965.

《Flora of China》 Vol. 20-21 (2011)
Aster nigromontanus  Dunn J. Linn. Soc., Bot. 35: 501. 1903.
黑山紫菀   hei shan zi wan
Herbs, perennial, 40-50 cm tall, rarely caespitose, rhizomatous. Stems erect, simple, stout, flexuous, shallowly striate, glabrous proximally, sparsely strigillose distally, eglandular. Leaves: basal leaves in a rosette, disappearing before stem elongation, winged long (petiole to 2.5 cm) or shortly petiolate; blade abaxially pale green, adaxially green, oblong, 4-6 × 1.5-2.5 cm, slightly reduced upward, abaxially glabrous, veins sparsely strigillose, very sparsely minutely stipitate glandular in pits, adaxially densely scabridulous, very sparsely minutely stipitate glandular in pits, base abruptly attenuate, margin coarsely serrate (teeth mucronate), ciliate, midvein prominent, apex acuminate, mucronate; lowest leaves withered by anthesis (not seen); lower leaves (not seen) to upper leaves shortly broadly winged petiolate (base clasping) or sessile, lanceolate, 11.5-17 × 2.8-6 cm, base attenuate; synflorescence leaves sessile, lanceolate, ca. 3.3 × 1 cm, base auriculate, clasping, rapidly becoming bracts. Capitula numerous, in terminal corymbiform synflorescences, 1.5-1.8 cm in diam.; peduncles 10-20 mm, densely strigillose, minutely stipitate glandular; bracts linear-lanceolate, entire. Involucres campanulate, 5-6 × 6-7 mm; phyllaries 2- or 3-seriate, subequal, green, lanceolate to oblong-lanceolate, 4-6 × 1-1.2 mm, abaxially sparsely strigillose proximally on veins, moderately to sparsely minutely stipitate glandular proximally, margin scarious or narrowly scarious, erose, sparsely ciliate, midvein more pronounced basally, ± translucent, apex acuminate, sometimes purplish, eciliate. Ray florets 25-30, white, tube hairy, stipitate glandular, lamina 5-7 × 1-1.2 mm, (2-veined), glabrous, eglandular; disk florets yellow, ca. 5 mm, tube base flared, veins prominent, translucent, limb campanulate, ca. 3.2 mm, hairy, very sparsely stipitate glandular, lobes spreading, narrowly triangular, ca. 1.2 mm. Achenes (immature) obovoid, slightly compressed, ca. 3 mm, sparsely strigillose, sparsely minutely stipitate glandular apically, 2-ribbed. Pappus 3- or 4-seriate, dirty white or slightly reddish; outermost bristles slender, ca. 0.5 mm; outer bristles few or none, slender, ca. 3 mm; inner bristles ca. 4.2 mm, acute; innermost bristles 4.6-4.7 mm, clavate. Fl. unknown, fr. Nov.
● Grasslands on slopes; 1500-3000 m. Yunnan (Jingdong, Mengzi).
The above description of Aster nigromontanus is based on the co-type at MO.The above description of Aster nigromontanus is based on the co-type at MO.

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