Cycas chamaoensis

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.

Cycas chamaoensis in cultivation Cycas chamaoensis in cultivationPrint factsheet Facts - Kingdom Plantae Phylum Tracheophyta Class Cycadopsida Order Cycadales Family Cycadaceae Genus Cycas (1) Status - This species is classified as Critically More

Cycas chamaoensis is named after the only known habitat of this species, on and near Khao Chamao. 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. More