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天全紫菀Aster tientschuanensis Hand.-Mazz.

天全紫菀Aster tientschuanensis Hand.-Mazz.

科名:菊科 Compositae

属名:紫菀属 Aster

《中国植物志》第74卷220页
  67. 天全紫菀 图版55:1-5
  Aster tientschuanensis Hand. -Mazz. in Oesterr. Bot. Zeit. 79: 819. 1940; S. Y. Hu in Quart. Journ. Taiwan Mus. 18: 302. 1965.
  多年生草本,根状茎粗壮。茎直立,高7-18厘米,1或2个生于莲座状叶丛的外侧,纤细,常弯曲,被疏长柔毛,下部常脱毛,下部有密集而上部有疏生的叶。莲座状叶匙形,长2-7厘米,宽0.5-1.5厘米,下部渐狭成楔形具宽翅的柄,上部倒卵圆形,有2-5对疏齿或圆齿,顶端钝或近圆形;茎下部叶在花期生存,长1-1.5厘米,宽约0.3厘米,匙形,无柄或有短柄,顶端有3细齿或全缘;上部叶小,长圆形或线形,或全缘;全部叶质稍厚,两面近无毛,有长缘毛;中脉在下面凸起,侧脉2-3对,斜升。头状花序径2-2.7厘米,单生于茎端。总苞半球形,长7毫米,径6-10毫米;总苞片3层,线状披针形或倒披针形,近等长,或外层有少数较短,宽几达1毫米,无毛或有疏毛,内层边缘多少宽膜质,有时撕裂,顶端尖,草质,带紫红色。舌状花约20个,管部长达2毫米,有短毛,舌片白色,长10-11毫米,宽达2毫米,有3-5脉。管状花长4.5毫米,管部长1.5毫米,有短毛,裂片长不及1毫米。冠毛1层,带红色,长3.5-4.5毫米,有多数不等长的糙毛。子房狭长圆形,长2.5毫米,稍扁,被密绢毛。花期5-7月。
  产于四川西部(天全、理县)。生于山地林缘及灌丛中。海拔3340米。
  植物的体态略似怒江紫菀 (A. salwinensis Onno),花茎也似生于莲座状叶丛的外侧;此两种的叶形和单生的头状花序也相同。但此种的叶质厚,两面近无毛,子房被密绢毛,冠毛1层,带红色,与怒江紫菀显然有别。根据 Handel-Mazzetti,此种可能与川鄂紫菀 (A. moupinensis (Frach.) Hand. -Mazz.) 比较接近,但后者的茎有密生狭长的叶,下部叶远较上部叶为大,头状花序多数,总苞片较宽大。据本种的原始记载,冠毛等长;但经检查模式标本(曲桂龄 2780, A. sinica Chang, ined.),冠毛与管状花近等长而有不等长的糙毛。又据采集记载,管状花青色,叶下面浅绿色。
形态特征:多年生草本,根状茎粗壮。茎直立,高7—18厘米,l或2个生于莲座状叶丛的外侧,纤细,常弯曲,被疏长柔毛,下部常脱毛,下部有密集而上部有疏生的叶。莲座状叶匙形,长2—7厘米,宽o.5—1.5厘米,下部渐狭成楔形具宽翅的柄,上部倒卵圆形,有2—5对疏齿或圆齿,顶端钝或近圆形;茎下部叶在花期生存,长1—1.5厘米,宽约o.3厘米,匙形,无柄或有短柄,顶端有3细齿或全缘;上部叶小,长圆形或线形,或全缘;全部叶质稍厚,两面近无毛,有长缘毛;中脉在下面凸起,侧脉2—3对,斜升。头状花序径2—2.7厘米,单生于茎端。总苞半球形,长7毫米,径6一10毫米;总苞片3层,线状披针形或倒披针形,近等长,或外层有少数较短,宽几达1毫米,无毛或有疏毛,内层边缘多少宽膜质,有时撕裂,顶端尖,草质,带紫红色。舌状花约20个,管部长达2毫米,有短毛,舌片白色,长10—11毫米,宽达2毫米,有3—5脉。管状花长4.5毫米,管部长1.5毫米,有短毛,裂片长不及1毫米。冠毛1层,带红色,长3.5—4.5毫米,有多数不等长的糙毛。子房狭长圆形,长2.5毫米,稍扁,被密绢毛。花期5—7月。
产地分布:产于四川西部(天全、理县)。生于山地林缘及灌丛中。海拔3340米。
本种提示:植物的体态略似怒江紫菀(A.SalwinensisOnno),花茎也似生于莲座状叶丛的外侧;此两种的叶形和单生的头状花序也相同。但此种的叶质厚,两面近无毛,子房被密绢毛,冠毛1层,带红色,与怒江紫菀显然有别。根据Handel·Mazzetti,此种可能与川鄂紫菀(A.Moupinensis(Frach.)Hand,·Mazz。)比较接近,但后者的茎有密生狭长的叶,下部叶远较上部叶为大,头状花序多数,总苞片较宽大。据本种的原始记载,冠毛等长;但经检查模式标本(曲桂龋2780,A.SinicaChang,ined.),冠毛与管状花近等长而有不等长的糙毛。又据采集记载,管状花青色,叶下面浅绿色。
参考文献:AstertientschuanensisHand.·Mazz.InOesterr.Bot.Zeit.79:819.1940;S.Y.HuinQuart.Journ.TaiwanMus.18:302.1965.

《Flora of China》 Vol. 20-21 (2011)
Aster tientschwanensis  Handel-Mazzetti Oesterr. Bot. Z. 89: 819. 1940.
天全紫菀   tian quan zi wan
Herbs, perennial, 7-18 cm tall; rhizomes robust, without stolons. Stems ascending, simple, slender, sparsely villous, often glabrescent below. Leaves crowded below and scattered above, glabrate, rather thick, margin villous-ciliate, midvein abaxially prominent, lateral veins 2- or 3-paired and obliquely ascending; basal leaves winged petiolate; blade spatulate, 2-7 × 0.5-1.5 cm, base attenuate, margin 2-5-crenate-serrate, apex obtuse or rounded; lower cauline leaves present at anthesis, sessile or shortly winged petiolate, spatulate to oblanceolate, 1-1.5 × ca. 0.3 cm, apically 3-serrate or entire; upper leaves small, oblong or linear, margin entire. Capitula terminal, solitary, 2-2.7 cm. Involucres hemispheric-campanulate, ca. 7 × 6-10 mm; phyllaries 3-seriate, subequal, or outer phyllaries somewhat shorter, linear-lanceolate or linear-oblanceolate, 6-7.2 × ca. 1 mm, abaxially glabrous or sparsely villous, membranous, margin villous-ciliate, margin of inner phyllaries ± broadly scarious, erose-fimbriate, apex acute to acuminate, ± leaflike, purplish. Ray florets 13-17, white, tube ca. 1.5 mm, hairy, lamina 10-11 × ca. 2 mm; disk florets ca. 4.5 mm, tube 1-1.2 mm, hairy, limb funnelform, glabrous, lobes lanceolate, ca. 0.8 mm. Achenes (immature) narrowly oblong, ± compressed, ca. 2.5 mm, densely strigose, 2-ribbed. Pappus (immature) 3-seriate, reddish, bristles barbellate throughout; outer bristles short; inner bristles 3.5-4.5 mm. Fl. May-Jul.
● Mountain forest margins and thickets; ca. 3300 m. C and NC Sichuan (Lixian, Tianquan).
Aster tientschwanensis is similar to A. salwinensis but differs from it by its thick, glabrate leaves, densely strigose achenes, and reddish pappus.Aster tientschwanensis is similar to A. salwinensis but differs from it by its thick, glabrate leaves, densely strigose achenes, and reddish pappus.

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