foc
《中国植物志》英文修订版
Flora of China
  FOC Vol.20-21 (2011)              | Family List  Asteraceae  PDF ASTERACEAE  PDF   |  eFloras.org Link Font:+ Big | - Small
   6. ASTERACEAE tribe VERNONIEAE  VERNONIEAE
斑鸠菊族   ban jiu ju zu
  
Authors:Authors: Yilin Chen & Michael G. Gilbert

  

Herbs, shrubs, sometimes climbing, or trees; hairs simple, T-shaped, or stellate. Leaves usually alternate [rarely opposite or whorled], leaf blade entire or serrate-dentate [rarely pinnately divided], venation pinnate, rarely with 3 basal veins (Distephanus). Synflorescences mostly terminal, less often terminal on short lateral branches or axillary, mostly cymose paniculate, less often spikelike, forming globose compound heads or reduced to a solitary capitulum. Capitula discoid, homogamous. Phyllaries generally imbricate, in several rows, rarely in 2 rows, herbaceous, scarious or leathery, outer gradually shorter. Receptacle flat or rather convex, naked or ± fimbriate. Florets 1-400, all bisexual, fertile; corolla tubular, purple, reddish purple, pink, or white, rarely yellow (Distephanus), limb narrowly campanulate or funnelform, 5-lobed. Anther base bifid, auriculate, acute or hastate, rarely caudate, apex appendaged. Style branches usually long and slender, apex subulate or acute, dorsally pilose, without appendage. Achenes cylindric or slightly flattened, (2-)5-10[-20]-ribbed, or 4- or 5-angled, rarely ± terete; pappus usually present, persistent, of many filiform setae, bristles, or scales, often 2-seriate with inner series of setae or bristles and shorter outer series of scales, sometimes very few and deciduous (Camchaya) or absent (Ethulia).

Up to 120 genera and 1,400 species: throughout the tropics and extending into some temperate regions; six genera (one introduced) and 39 species (ten endemic, two introduced) in China.

The classification of this tribe is still in flux with some authors not accepting most of the recent segregates from Vernonia. See Robinson and Skvarla (Taiwania 55: 254-272. 2010) for a treatment of the Chinese species of Vernonieae using these segregates.

The classification of this tribe is still in flux with some authors not accepting most of the recent segregates from Vernonia. See Robinson and Skvarla (Taiwania 55: 254-272. 2010) for a treatment of the Chinese species of Vernonieae using these segregates.

  
1Capitula densely clustered into compound synflorescences subtended by (1-)3 leaflike bracts, each involucre with 1-4 florets and ca. 8 phyllaries(2)
+Capitula in lax panicles, rarely in sessile clusters and then each involucre with more than 4 florets and always with many phyllaries(3)
   
2(1)Capitula (1-)10-40 per cluster, clusters terminal, solitary or in flat-topped synflorescences, each subtended by (2 or)3 ± triangular bracts; pappus with many straight, scabrid-barbellate, basally widened awns.90  Elephantopus    地胆草属
+Capitula 1-5+ per cluster, clusters axillary in long spikelike synflorescences, each subtended by 1 or 2 lanceolate to spatulate or linear bracts; pappus with 2 very long, bent or curved awns.91  Pseudelephantopus    假地胆草属
   
3(1)Corolla golden yellow; leaves basally 3-veined.88  Distephanus    黄花斑鸠菊属
+Corolla pale to dark purple, pink, or white; leaves pinnately veined(4)
   
4(3)Pappus absent; achenes (2-)4- or 5(or 6)-ribbed, apex truncate or concave with an enlarged rim.86  Ethulia    都丽菊属
+Pappus present [or absent]; achenes 10-ribbed, 4- or 5-angled, or terete, apex rounded(5)
   
5(4)Pappus of 1-10 easily deciduous bristles [or absent].89  Camchaya    凋缨菊属
+Pappus long, copious, persistent, outermost setae sometimes short and scalelike.87  Vernonia    斑鸠菊属