Ajuga chamaecistus subsp. chamaecistus Ging.

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Ajuga chamaecistus subsp. chamaecistus Ging.

Parvin Salehi Shanjani, Hamideh Javadi, Leila Falah Hoseini and Amin Zeraatkar

Natural Resources Gene Bank, Research Institute of Forests and Rangelands, Agricultural Research, Education and Extension Organization, Tehran, Iran.

Uploaded at December 2024

Scientific editor: Mohammad Dadmand

Seed Storage

The storage behavior of this species is orthodox (desiccation-tolerant seeds); dry to 15-20 % eRH and stored at -20 °C.

 

Germination requirements

The seeds of this species are not dormant. Sterilize seeds before placing them on wet germination paper. Place seeds for two weeks in 4ºC germinate uniformly. Then germinate under an alternating temperature regime of 15/25 ºC (the higher temperature for 16 hours of light and the lower one for 8 hours of dark).

 

Morphology

Fruit type: Achene

Fruit shape: Elliptic, dorsal side convex, ventral side mostly flat, with large hilum. Surface

reticulate-foveate, mostly dull, glabrous, pale- to dark-brown

Fruit size: Length 6.5 to 7.5 mm, width 2.5 to 3.5 mm in an accession from Marvdasht, Fars, with 1000 seed/fruit weight 10.3 g., which was collected and identified in 2018 by Amin Zeraatkar, and is stored in the Natural Resources Gene Bank of Iran with the accession number of 46901.

Average 1000 seed/fruit weight: 8 to 15 g

 

Biological features

Life form: Subshrub, woody at base, perennial, pubescent. Stems erect, height 15 to 35 cm

Inflorescence, flower type, and pollination mechanism: Inflorescence separated verticillasters, each verticillaster with 2 flowers, calyx gamosepalous, with 5 unequal tooth, 7 to 12 mm, corolla gamopetalous, 14 to 30 mm long, 2-lipped, upper lip fused lobs (at apex diagonally cut), lower lip 3-lobed, often whitish or yellowish, purple-nerved. Plant monoecious, cross-pollinated. Pollination is carried out by insects, especially bees.

Time of flowering: Spring

Time of seed ripening: Spring

Seed dispersal methods: By seed weight

Geographical distribution: Endemic to Iran. Typus from Iran

Distribution in Iran: North West, West and Center. Mostly in provinces Azerbaijan, Kurdistan, Hamedan, Kermanshah, Lorestan, Isfahan, Chaharmahal and Bakhtiari, Fars and Tehran

 

Taxonomy

Family: Lamiaceae

Genus: Ajuga

Species: A. chamaecistus

Subspecies: chamaecistus

Persian name: Labdisi-e butehee

 

References and Links

Black, M. and Bewley, J.D. 2000. Seed technology and its biological basis. Sheffield Academic Press, 419 pp.

Bojnanský, V., Fargašová, A. 2007. Atlas of Seeds and Fruits of Central and East-European flora. Published by Springer Dordrecht, The Netherlands. 1046 pp.

Ghahreman, A. 1979-2003. Color flora of Iran. Research Institute of Forests and Rangelands Publishers, Tehran.

Jamzad, Z. 2012. Flora of Iran, No. 76: Lamiaceae. Research Institute of Forests and Rangelands Press,Tehran, Iran, 1066 pp.

Mozaffarian, V.A. 1998. Dictionary of Iranian plants names. Farhange Moaser Publishers, Tehran, 671 pp.

Mozaffarian, V.A. 2012. A Pictorial dictionary of botany. Farhange Moaser Publisher, Tehran, 1088 pp.

Sharma, O.P. 2009. Plant taxonomy 2E. Tata McGraw-Hill Education, New Delhi, 563 pp.

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