栏目

滇西前胡Peucedanum delavayi Franch.

滇西前胡Peucedanum delavayi Franch.

别名:丽江前胡;

科名:伞形科 Umbelliferae

属名:前胡属 Peucedanum

《中国植物志》第55(3)卷130页
  4. 滇西前胡(新拟)图版55
  Peucedanum delavayi Franch. in Bull. Soc. Philom. Paris 8 (6): 143. 1894; Diels in Not. Bot. Gard. Edinb. 6: 163. 1912.
  多年生草本,高20-54厘米。根颈粗短,径1.5-3厘米,多茎时,根颈呈头状,被褐色枯鞘纤维,木质化;根圆柱状,少有分枝,灰褐色。茎单一或多茎丛生,劲直,圆柱形,径3-5毫米,灰色微带紫色,有细纵条纹突起,至茎上部,条纹呈浅沟状,中部以上有1-3短小分枝,近无毛或有极短绒毛。基生叶多数,具长柄,叶柄长7-10厘米,基部具卵状披针形的叶鞘,边缘膜质,叶柄及叶鞘具极短绒毛;叶片轮廓卵状长圆形,长6-8厘米,宽3-4厘米,二回羽状分裂,具一回羽片3-4对,卵形,下部一对羽片远离,近无柄,具二回羽片1-2对,上部羽片无柄,羽片呈齿状浅裂或深裂,末回裂片线形或卵形,基部楔形,具1-3锯齿,齿端有小尖头,长0.6-1厘米,宽3-6毫米,叶轴及下表面叶脉有短柔毛;茎上部叶近无柄,有宽阔的叶鞘抱茎,一回羽状分裂,末回裂片形状与茎下部叶相似。复伞形花序顶生,有少数分枝,花序梗密生短硬毛;总苞片3-4,形状各式,在同一伞形花序上,有线形、线状披针形,还常有1片特大,形状与茎上部的叶片相似;伞辐6-15 (-24),近等长,长2-5厘米,具短硬毛;小总苞片4-7,比花柄长,长8-13毫米,宽5毫米,一回羽状分裂,裂片线状披针形,有毛;花柄不等长或近等长,有毛;花瓣倒卵形,白色,顶端凹陷,小舌片内曲;萼齿不显著;花柱长,初时直立,后微弯曲,花柱基圆锥形。分生果椭圆形,背部扁压,长约4毫米,宽2.5毫米,无毛或近无毛;背棱和中棱线形,轻微突起,侧棱呈狭翅状,稍厚;棱槽内有油管1-3,合生面油管4-6;胚乳腹面平直。花期7-8月,果期8-9月。
  产云南(洱源、丽江)。生长于海拔2600-3400米的山坡草地或岩石边。模式标本采自洱源孟获营。
形态特征:多年生草本,高20—50厘米。根须粗短,径1.5—3厘米,多茎时,根颈呈头状,被褐色枯鞘纤维,木质化;根圆柱状,少有分枝,灰褐色。茎单一或多茎丛生,劲直,圆柱形,径3—5毫米,灰色微带紫色,有细纵条纹突起,至茎上部,条纹呈浅沟状,中部以上有1—3短小分枝,近无毛或有极短绒毛。基生叶多数,具长柄,叶柄长7—10厘米,基部具卵状披针形的叶鞘,边缘膜质,叶柄及叶鞘具极短绒毛;叶片轮廓卵状长圆形,长6—8厘米,宽3—4厘米,二回羽状分裂,具一回羽片3—4对,卵形,下部一对羽片远离,近无柄,具二回羽片1—2对,上部羽片无柄,羽片呈齿状浅裂或深裂,末回裂片线形或卵形,基部楔形,具1—3锯齿,齿端有小尖头,长0.6—1厘米,宽3—6毫米,叶轴及下表面叶脉有短柔毛;茎上部叶近无柄,有宽阔的叶鞘抱茎,一回羽状分裂,末回裂片形状与茎下部叶相似。复伞形花序顶生,有少数分枝,花序梗密生短硬毛;总苞片3—4,形状各式,在同一伞形花序上,有线形、线状披针形,还常有1片特大,形状与茎上部的叶片相似;伞辐6—15(—24),近等长,长2—5厘米,具短硬毛;小总苞片4—7,比花柄长,长8—13毫米,宽5毫米,一回羽状分裂,裂片线状披针形,有毛;花柄不等长或近等长,有毛;花瓣倒卵形,白色,顶端凹陷,小舌片内曲;萼齿不显著;花柱长,初时直立,后微弯曲,花柱基圆锥形。分生果椭圆形,背部扁压,长约4毫米,宽2.5毫米,无毛或近无毛;背棱和中棱线形,轻微突起,侧棱呈狭翅状,稍厚;棱槽内有油管1—3,合生面油管4—6;胚乳腹面平直。花期7—8月,果期8—9月。
产地分布:产云南(洱源、丽江)。生长于海拔2600—3400米的山坡草地或岩石边。模式标本采自洱源孟获营。
参考文献:Franch.inBull.Soc.Philom.Paris8(6):147.1894;DielsinNot.Bot.Gard.Edinb.6:163.1912.

《Flora of China》 Vol. 14 (2005)
Peucedanum delavayi  Franchet
滇西前胡   dian xi qian hu
Plants 20–50 cm. Stems several, erect, grayish-purple, distally fluted, puberulent; caudex stout, densely clothed with fibrous remnant sheaths. Basal leaves numerous; leaf blade ovate-oblong, 2-pinnate, pinnae 3–4 pairs; basal pinnae shortly petiolulate, others sessile; ultimate segments ovate to linear, 6–10 × 3–6 mm, 1–3-toothed, apex mucronate, pubescent abaxially on rachises and veins. Cauline leaves reduced upwards; petioles wholly sheathing. Umbels terminal, 6–10 cm across; peduncles densely hispid; bracts 3–4, linear, lanceolate or pinnate; rays 6–15(–24), subequal, 2–5 cm, hirsute; bracteoles 4–7, longer than flowers, pinnate; ultimate segments linear-lanceolate, hirsute. Calyx teeth absent. Petals white, obovate. Styles short. Fruit ellipsoid, ca. 4 × 2.5 mm; lateral ribs narrowly winged, wings slightly thickened; vittae (1–)2–3 in each furrow, 4–6 on commissure. Fl. Jul–Aug, fr. Aug–Sep.
Mountain slopes, grasslands, rock crevices; 2600–3400 m. NW Yunnan (Eryuan, Lijiang).
This poorly known species is recorded only from a few collections. Its taxonomic placement is not fully resolved, and some authors consider it to be synonymous with Sinodielsia yunnanensis (Meeboldia yunnanensis in the present account).

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