Arceuthobium minutissimum

Arceuthobium minutissimum, known as the Indian dwarf mistletoe[2] or Himalayan dwarf mistletoe, is a leafless parasitic plant of Pinus wallichiana. It is considered the smallest known dicotyledonous plant.[3]

Arceuthobium minutissimum
A. minutissimum photographed on Pinus wallichiana in Bhutan
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Santalales
Family: Santalaceae
Genus: Arceuthobium
Species:
A. minutissimum
Binomial name
Arceuthobium minutissimum
Synonyms[1]

Razoumowskia minutissima Tubeuf

Description

Individual shoots grow to a height of 5 millimeters, and up to 1 centimeter with mature fruit. Shoots emerge from both the cortex and needles of the host plant. Flowers are monoecious, and seed dispersal occurs in September.[4]

Distribution and host species

The species occurs in dry forests of the Himalayan mountains at an approximate altitude of 2500–3500 meters.[4][5] It has been reported in Nepal, India, Bhutan, and Pakistan. A. minutissimum infects the crowns of trees of all ages. It severely impacts the health of host-trees, and causes the loss of needles.[6] Although P. wallichiana is the primary host, it has been recorded to infect Pinus gerardiana in Pakistan. Unconfirmed reports show that it may also infect Abies pindrow and Cedrus deodara.[4]

It has been considered that there is potential for A. minutissimum to become an invasive species in Europe.[6]

See also

References
  1. "Arceuthobium minutissimum Hook.fil". www.gbif.org. Retrieved 16 April 2022.
  2. Bhandari, N. N.; Nanda, Kanan (1 June 1970). "The Endophytic System of Arceuthobium minutissimum, the Indian Dwarf Mistletoe". Annals of Botany. 34 (3): 517–525. doi:10.1093/oxfordjournals.aob.a084387. ISSN 0305-7364. Retrieved 16 April 2022.
  3. Datta, R. M. (February 1951). "Occurrence of a Hermaphrodite Flower in Arceuthobium minutissimum Hook. f., the Smallest Known Dicotyledonous Plant". Nature. 167 (4240): 203–204. Bibcode:1951Natur.167..203D. doi:10.1038/167203a0. ISSN 1476-4687. PMID 14806428. S2CID 4181798. Retrieved 16 April 2022.
  4. Hawksworth, Frank G.; Wiens, Delbert (April 1998). Dwarf Mistletoes. DIANE Publishing. pp. 264–265. ISBN 978-0-7881-4201-7. Retrieved 16 April 2022.
  5. "Arceuthobium minutissimum (Himalayan dwarf mistletoe)". www.cabi.org. Retrieved 16 April 2022.
  6. Vannini, A.; Cecca, D.; Monaci, L.; Anselmi, N. (September 1995). "Main tree pathogens of western Himalayan forests in Nepal: description and risk of introduction". EPPO Bulletin. 25 (3): 455–461. doi:10.1111/j.1365-2338.1995.tb00579.x. ISSN 0250-8052. Retrieved 16 April 2022.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.