Cycas arenicola is a species of cycad in the genus Cycas, native to Australia, in the far north of Northern Territory in the basin of the upper East Alligator River in Arnhem Land. It grows in Eucalyptus woodlands on highly siliceous soils (sandstone derived). They thrive in open situations.
The stems reach 1.5 m (rarely 2.5 m) tall, with a diameter of 15–20 cm. The leaves are numerous, 0.9-1.6 m long, pinnate with 180-200 leaflets, glossy bright green above, pubescent beneath with brown pubescence, the leaflets are oriented 60-90 degrees forward without overlapping. The petiole is brown pubescent, 25–35 cm long, armed with spines.
The female cones open, with sporophylls 15–20 cm long, grey with orange hairs, each with 4-6 ovules. Margins toothed, with bright orange sarcotesta when ripened. The male cones are solitary, spindle shaped, 25 cm long and 9 cm diameter.
The name derives from Latin arena and -cola, "sand dweller", the species growing in sandstone habitats.
First described in 1993 by Hill, the plant is not thought to be threatened as its range occurs on Aboriginal land and is very remote. The plant is dependent on very dry, seasonally variable conditions, and is susceptible to crown rot.
Cycad Pages: Cycas arenicola 2013-05-10 at the Wayback Machine
April 12, 2024
cycas, arenicola, species, cycad, genus, cycas, native, australia, north, northern, territory, basin, upper, east, alligator, river, arnhem, land, grows, eucalyptus, woodlands, highly, siliceous, soils, sandstone, derived, they, thrive, open, situations, conse. Cycas arenicola is a species of cycad in the genus Cycas native to Australia in the far north of Northern Territory in the basin of the upper East Alligator River in Arnhem Land It grows in Eucalyptus woodlands on highly siliceous soils sandstone derived They thrive in open situations Cycas arenicolaConservation statusNear Threatened IUCN 3 1 1 Scientific classificationKingdom PlantaeClade TracheophytesClade GymnospermaeDivision CycadophytaClass CycadopsidaOrder CycadalesFamily CycadaceaeGenus CycasSpecies C arenicolaBinomial nameCycas arenicolaK D HillThe stems reach 1 5 m rarely 2 5 m tall with a diameter of 15 20 cm The leaves are numerous 0 9 1 6 m long pinnate with 180 200 leaflets glossy bright green above pubescent beneath with brown pubescence the leaflets are oriented 60 90 degrees forward without overlapping The petiole is brown pubescent 25 35 cm long armed with spines The female cones open with sporophylls 15 20 cm long grey with orange hairs each with 4 6 ovules Margins toothed with bright orange sarcotesta when ripened The male cones are solitary spindle shaped 25 cm long and 9 cm diameter The name derives from Latin arena and cola sand dweller the species growing in sandstone habitats First described in 1993 by Hill the plant is not thought to be threatened as its range occurs on Aboriginal land and is very remote The plant is dependent on very dry seasonally variable conditions and is susceptible to crown rot References edit Hill K D 2010 Cycas arenicola IUCN Red List of Threatened Species 2010 e T41969A10613296 Retrieved 26 June 2022 Cycad Pages Cycas arenicola Archived 2013 05 10 at the Wayback Machine Retrieved from https en wikipedia org w index php title Cycas arenicola amp oldid 1192983924, wikipedia, wiki, book, books, library,
