Camchaya

Camchaya
Camchaya thailandica
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Subfamily: Cichorioideae
Tribe: Vernonieae
Genus: Camchaya
Gagnep.
Type species
Camchaya kampotensis
Gagnep.
Synonyms[1]
  • Thorelia Gagnep.
  • Thoreliella C.Y.Wu
  • Iodocephalopsis S.Bunwong

Camchaya is a genus of flowering plants in the aster family, Asteraceae. They are native to Asia, including China, Laos, Thailand, Vietnam,[2] and Cambodia.[3][3]

These are annual herbs with coatings of hairs and globose glandular structures. The alternately arranged leaves have wavy or serrated blades on petioles. The inflorescence is a panicle[2] which can be terminal or axillary.[3] Some inflorescences have few flower heads, and some heads are solitary. The hemispherical head has up to 6 layers of phyllaries. It contains many purple florets which are tubular and expanded at the mouth into five pointed lobes and bear a long, branching style. The fruit is a compressed achene, usually with ten ribs, but sometimes with five. Some achenes have a pappus of up to 10 fragile bristles.[2] The pollen of plants in the genus has a unique "6-porate echinolophate" morphology.[3]

Accepted species[3]

The following list reflects species accepted by The Plant List[4] and the Global Compositae Checklist.[1] Some recent publications suggest moving some of these taxa to other genera (Vernonia and Iodocephalopsis).[5][6]

  1. Camchaya eberhardtii - Thailand, Vietnam
  2. Camchaya gracilis - Thailand
  3. Camchaya kanpotensis - Thailand, Cambodia
  4. Camchaya loloana - Thailand, Vietnam, Yunnan
  5. Camchaya pentagona - Thailand
  6. Camchaya spinulifera - Thailand
  7. Camchaya tenuiflora - Thailand
  8. Camchaya thailandica - Thailand

References

  1. ↑ 1.0 1.1 Flann, C (ed) 2009+ Global Compositae Checklist
  2. ↑ 2.0 2.1 2.2 Camchaya. Flora of China.
  3. ↑ 3.0 3.1 3.2 3.3 3.4 Bunwong, S., et al. (2012). A new species of Camchaya (Asteraceae, Vernonieae) from Thailand. PhytoKeys 12: 53–57.
  4. ↑ The Plant List search for Camchaya
  5. ↑ Bunwong, S., et al. (2009). Taxonomic notes on Camchaya and Iodocephalus (Vernonieae: Asteraceae), and a new genus Iodocephalopsis. Proceedings of the Biological Society of Washington 122(3), 357–63.
  6. ↑ Sukhonthip Bunwong, Pranom Chantaranothai, & Sterling C. Keeley. 2013. A new species of Camchaya (Asteraceae, Vernonieae) from Thailand. PhytoKeys. 2012; (12): 53–57. /