Cycas chamaoensis is named after the only known habitat of this species, on and near Khao Chamao mountain in Khao Chamao District, Thailand. Stems are arborescent, either erect or decumbent. Leaves numerous, exceeding 60 per crown, 1.2-2.5 meters in length, ending in terminal spine. Petiole 30–60 cm, glabrous and partially spiny. Leaflets in 85-155 pairs, and lanceolate, glabrous and angled forward at 60-70 degrees.
Female cones closed type, sporophylls 13–18 cm long with yellow to gray tomentose. 2-4 ovules per sporophyll. Lamina is long, almost circular, with numerous lateral spines. Sarcotesta 3 mm thick, and yellow in color, with smooth sclerotesta. Male cones solitary and erect, spindle shaped to narrow ovoid, 50–60 cm long, 12–13 cm in diameter, with orange color. Prominent apical spine present.
Habitatedit
This cycad is native to eastern central Thailand, on Mount Khao Chamao northeast of Klaeng and southeast of Bangkok.[2] This cycad grows from bare granite outcroppings, in full sun. It is closely related to Cycas pectinata. The conservation status is insecure, as local inhabitants treasure the plant for gardening purposes and the plant's range is restricted to only 1 mountain.
Referencesedit
^Hill, K.D. (2010). "Cycas chamaoensis". IUCN Red List of Threatened Species. 2010: e.T42037A10634719. doi:10.2305/IUCN.UK.2010-3.RLTS.T42037A10634719.en. Retrieved 20 November 2021.
cycas, chamaoensis, named, after, only, known, habitat, this, species, near, khao, chamao, mountain, khao, chamao, district, thailand, stems, arborescent, either, erect, decumbent, leaves, numerous, exceeding, crown, meters, length, ending, terminal, spine, pe. Cycas chamaoensis is named after the only known habitat of this species on and near Khao Chamao mountain in Khao Chamao District Thailand Stems are arborescent either erect or decumbent Leaves numerous exceeding 60 per crown 1 2 2 5 meters in length ending in terminal spine Petiole 30 60 cm glabrous and partially spiny Leaflets in 85 155 pairs and lanceolate glabrous and angled forward at 60 70 degrees Cycas chamaoensisConservation statusCritically Endangered IUCN 3 1 1 Scientific classificationKingdom PlantaeClade TracheophytesClade GymnospermaeDivision CycadophytaClass CycadopsidaOrder CycadalesFamily CycadaceaeGenus CycasSpecies C chamaoensisBinomial nameCycas chamaoensisK D HillFemale cones closed type sporophylls 13 18 cm long with yellow to gray tomentose 2 4 ovules per sporophyll Lamina is long almost circular with numerous lateral spines Sarcotesta 3 mm thick and yellow in color with smooth sclerotesta Male cones solitary and erect spindle shaped to narrow ovoid 50 60 cm long 12 13 cm in diameter with orange color Prominent apical spine present Habitat editThis cycad is native to eastern central Thailand on Mount Khao Chamao northeast of Klaeng and southeast of Bangkok 2 This cycad grows from bare granite outcroppings in full sun It is closely related to Cycas pectinata The conservation status is insecure as local inhabitants treasure the plant for gardening purposes and the plant s range is restricted to only 1 mountain References edit Hill K D 2010 Cycas chamaoensis IUCN Red List of Threatened Species 2010 e T42037A10634719 doi 10 2305 IUCN UK 2010 3 RLTS T42037A10634719 en Retrieved 20 November 2021 PACSOA CycadsExternal links editraykarsinkha phuchtrakulprng Cycas chamaoensis Khao Chamao Khao Wong National Park Retrieved from https en wikipedia org w index php title Cycas chamaoensis amp oldid 1056158567, wikipedia, wiki, book, books, library,
