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密叶紫菀Aster pycnophyllus W. W. Smith

密叶紫菀Aster pycnophyllus W. W. Smith

科名:菊科 Compositae

属名:紫菀属 Aster

《中国植物志》第74卷190页
  43. 密叶紫菀
  Aster pycnophyllus W. W. Smith in Not. Roy. Bot. Gard, Edinb: 3: 332. 1915; Griers. in Not. Roy. Bot. Gard. Edinb. 26: 112, 1964. [Franch. ex Diels in Not, Roy. Bot. Gard. Edinb. 7: 199 et 340, 1913, nom. nud.]; S. Y. Hu in Quart. Journ, Taiwan Mus. 18: 297, 1965. ——Aster harrowianus var. pycnophyilus (Franch.) Levl., Cat. Pl, Yunnan, 40, 1915. ——Aster sikkimensis auct., non Hook: Hand. -Mazz in Notizbl. Bot. Gart, u. Mus. Berl. -Dahl. 13: 611. 1937, p. p. quoad specim., excl. syn.
  多年生草本,有根状茎。茎直立,高30-70厘米,稍细,上部常屈折,有细沟,被密柔毛,下部常脱毛,有分枝,上部有较密的叶。下部叶在花期枯萎,叶片宽卵圆形,约与叶柄等长;中部及上部叶卵圆披针形,长7-13稀达15厘米,宽2-2.5厘米,基部截形、圆形或稍心形,有长1-2稀0.5或达4厘米的叶柄,上部渐狭,尾状长尖,边缘有具小尖头的疏齿或锯齿;顶部叶线状披针形或狭卵圆形,较小;全部叶薄质,两面被疏长毛且有腺,下面除沿脉及边缘外,常脱毛,中脉在下面稍突起,侧脉4-5对,显明。头状花序径1.5-2厘米,多数排列成圆锥伞房状;花序梗长1-1.5厘米,有线形苞叶。总苞宽钟状,长4-5厘米,径6-8毫米。总苞片3-4层,线状披针形,长2.8-4毫米,宽0.6-0.8毫米,顶端长尖,外层紫褐色,被密毛及腺,较内层短三分之一至近等长,内层除顶部及中脉被毛外,干膜质,有缘毛。舌状花10-30个,管部长1.8-2毫米;舌片蓝紫色或近白色,长4-7毫米,宽0.7-1.2毫米,有显明的两脉;管状花黄色或带紫色,长达5毫米,管部长1.2-1.4毫米,裂片长达1毫米,花柱附片长0.4毫米。冠毛污白色,约与管状花花冠等长,有多数近等长的糙毛。瘦果长圆形,长1.7-1.8毫米,宽0.7毫米,两面各有2肋,被疏短毛。花期6-10月;果期9-12月。
  产于云南西北部(永平、大理、景东)、西藏东部及东南部(昌都地区)。生于亚高山山地、草地及灌丛中。海拔1830-3800米。也分布于印度及缅甸北部。
  此种曾被 Handel-Mazzetti 合并于锡金紫菀 (A. sikkimensis Hook.) 中,但Grierson 仍视为独立的种,以叶形和较少的舌状花与后者区别。据 Grierson, 此种的管状花花冠长3.6-3.8毫米。
形态特征:多年生草本,有根状茎。茎直立,高30一70厘米,稍细,上部常屈折,有细沟,被密柔毛,下部常脱毛,有分枝,上部有较密的叶。下部叶在花期枯萎,叶片宽卵圆形,约与叶柄等长;中部及上部叶卵圆披针形,长7—13稀达15厘米,宽2—2.5厘米,基部截形、圆形或稍心形,有长1—2稀0.5或达4厘米的叶柄,上部渐狭,尾状长尖,边缘有具小尖头的疏齿或锯齿;顶部叶线状披针形或狭卵圆形,较小;全部叶薄质,两面被疏长毛且有腺,下面除沿脉及边缘外,常脱毛,中脉在下面稍突起,侧脉4—5对,显明。头状花序径1.5—2厘米,多数排列成圆锥伞房状;花序梗长1—1.5厘米,有线形苞叶。总苞宽钟状,长4—5厘米,径6——8毫米。总苞片3—-4层,线状披针形,长2.8—4毫米,宽0.6—0.8毫米,顶端长尖,外层紫褐色,被密毛及腺,较内层短三分之一至近等长,内层除顶部及中脉被毛外,干膜质,有缘毛。舌状花10—30个,管部长1.8—2毫米;舌片蓝紫色或近白色,长4—7毫米,宽0.7—1.2毫米,有显明的两脉;管状花黄色或带紫色,长达5毫米,管部长1.2—1.4毫米,裂片长达1毫米,花柱附片长o.4毫米。冠毛污白色,约与管状花花冠等长,有多数近等长的糙毛。瘦果长圆形,长1.7一1.8毫米,宽0.7毫米,两面各有2肋,被疏短毛。花期6—10月;果期9—12月。
产地分布:产于云南西北部(永平、大理、景东)、西藏东部及东南部(昌都地区)。生于亚高山山地、草地及灌丛中。海拔1830—3800米。也分布于印度及缅甸北部。
本种提示:此种曾被Handel-Mazzetti合并于锡金紫菀(A.SikkimensisHook.)中,但Grierson仍视为独立的种,以叶形和较少的舌状花与后者区别。据Grierson,此种的管状花花冠长3.6—3.8毫米。
参考文献:AsterpycnophyllusW。W。SmithinNot.Roy.Bot.Gard,Edinb.3:332。1915;Griers.InNot.Roy·Bot.Gard.Edinb.26:112,1964.[Franeh.ExDielsinNot,Roy·Bot.Gard.Edinb.7:199et340,1913,nom.nud.];S.Y.HuinQuart.Journ,TaiwanMus.18:297,1965·———Asterharrowianusvar.Pycno·phyllus(Franch.)L6vl·,Cat.Pl,Yunnan,40,1915。---Astersikkimensisauct·,nonHook:Hand.·MazzinNotizbl.Bot.Gart,u.Mus.Berl.—Dahl.13:611.1937,p·p·quoadspecim·,excl.Syn.

《Flora of China》 Vol. 20-21 (2011)
Aster pycnophyllus  Franchet ex W. W. Smith Notes Roy. Bot. Gard. Edinburgh. 8: 332. 1915.
密叶紫菀   mi ye zi wan
Aster harrowianus Diels var. pycnophyllus (Franchet ex W. W. Smith) H. Léveillé.
Herbs, perennial, rhizomatous. Stems erect, 30-60 cm tall, flexuous, reddish, glabrescent below, moderately to densely strigose-villous above, usually branched only at synflorescence, more densely leafy above. Leaves cauline, thin, abaxially villous on veins, adaxially scabrous, both surfaces stipitate glandular, midvein ± prominent abaxially, lateral veins in 4 or 5 pairs, distinct; lower leaves absent at anthesis; middle and upper leaves petiolate; petiole 1-2(-4) cm, rarely subsessile; blade ovate to lanceolate, 7-13 × 2-2.5 cm, base truncate, rounded, or somewhat cordate, or attenuate, margin coarsely serrate (teeth mucronate), apex long acuminate (sometimes falcate); uppermost leaves smaller, narrowly ovate to lanceolate or linear. Capitula numerous in corymbiform synflorescences, 1.5-2 cm in diam.; peduncles 1-1.5 cm; bracts linear. Involucres campanulate, 4-5 × 6-8 mm; phyllaries 3- or 4-seriate, unequal, lanceolate to oblong, 2.8-4 × 0.6-0.8 mm, abaxially villosulous, apex acuminate, outer phyllaries purple, inner phyllaries with margin scarious, erose-fimbriate. Ray florets 10-30, purplish blue to nearly white, tube 1.8-2 mm, hairy, lamina 4-7 × 0.7-1.2 mm; disk florets yellow or sometimes purplish tinged, 4.2-5 mm, tube 1.2-1.6 mm, limb funnelform, tube, limb, and lobes hairy, lobes lanceolate, 1-1.1 mm. Achenes lanceoloid, compressed, 1.7-2 × ca. 0.7 mm, strigose, 2-ribbed. Pappus 3-seriate, dirty white; outer bristles slender, ca. 2.7 mm; inner bristles ca. 3.8 mm, acute; innermost bristles clavate. Fl. Jun-Oct, fr. Sep-Dec.
Subalpine slopes, grasslands, thickets; 1000-3800 m. Sichuan, E and SE Xizang, NW Yunnan [India, N Myanmar].

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