| Cycas couttsiana | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| (unranked): | Gymnosperms |
| Division: | Cycadophyta |
| Class: | Cycadopsida |
| Order: | Cycadales |
| Family: | Cycadaceae |
| Genus: | Cycas |
| Species: | C. couttsiana |
| Binomial name | |
| Cycas couttsiana K.D.Hill | |
Cycas couttsiana is a species of cycad, native to Queensland. [1]
Cycas is a genus of plants belonging to a very ancient lineage, the Cycadophyta, which are not closely related to palms, ferns, trees or any other modern group of plants. They are evergreen perennials which achieved their maximum diversity in the Jurassic and Cretaceous periods, when they were distributed almost worldwide. At the end of the Cretaceous, when the non-avian dinosaurs became extinct, so did most of the cycas in the Northern Hemisphere.
Cycas revoluta, is a species of gymnosperm in the family Cycadaceae, native to southern Japan including the Ryukyu Islands. It is one of several species used for the production of sago, as well as an ornamental plant. The sago cycad can be distinguished by a thick coat of fibers on its trunk. The sago cycad is sometimes mistakenly thought to be a palm, although the only similarity between the two is that they look similar and both produce seeds. The leaves grow from the trunk and start out as small leaves near the centre of the plant.
Cycas apoa is a species of cycad in the genus Cycas, native to northern New Guinea and Halmahera Island. It occurs in the Sepik River basin, in wet lowland forest in modestly seasonally flooded areas.
Cycas balansae is a species of cycad in the genus Cycas, native to southwestern China and adjacent northern Vietnam, where it occurs in dense mountain rainforests.
Cycas beddomei is a species of cycad in the genus Cycas, native to India, where it is confined to a small area of Andhra Pradesh state in the Tirumala Hills in scrubland and brush covered hills.
Cycas circinalis, also known as the queen sago, is a species of cycad known in the wild only from southern India. Cycas circinalis is the only gymnosperm species found among native Sri Lankan flora.
Cycas micronesica is a species of cycad found on the island of Yap in Micronesia, the Marianas islands of Guam and Rota, and The Republic of Palau. It is commonly known as federico nut or fadang in Chamorro. The species, previously lumped with Cycas rumphii and Cycas circinalis, was described in 1994 by Ken Hill. Paleoecological studies have determined that C. micronesica has been present on the island of Guam for about 9,000 years. It is linked with Lytico-Bodig disease, a condition similar to amyotrophic lateral sclerosis (ALS), due to the neurotoxin BMAA found in its seeds, which were a traditional food source on Guam until the 1960s. The neurotoxin is present due to its symbiosis with cyanobacteria.
Cycas taiwaniana is a species of plant in the genus Cycas. The species is native to Yunnan, Guangdong, Guangxi and Fujian in China. Although the specific epithet, taiwaniana, is derived from Taiwan, where the original type specimens were found, it is not naturally distributed in Taiwan. Instead of C. taiwaniana, the original type specimens used for describing C. taiwaniana, had been reclassified under another species, Cycas taitungensis.
Cycas rumphii, commonly known as queen sago or the queen sago palm, is a dioecious gymnosperm, a species of cycad in the genus Cycas native to Indonesia, New Guinea and Christmas Island. Although palm-like in appearance, it is not a palm.
Cycas ferruginea is a plant species native to Vietnam and to the Guangxi region of China. It grows on rocky crevices in forested areas at elevations of 200–500 m. It is known from a belt of limestone bluffs in Lang Son Province and Thai Nguyen Province in Vietnam, and in western Guangxi Province, China. It is also cultivated at the Guilin Botanical Garden, Guangxi.
Cycas sphaerica is a plant mainly found in the Indian state of Andhra Pradesh. The species was thought to be found in Odisha previously, but a recent publication found that the species is restricted to Andhra Pradesh. On the other hand, two endemic species viz. Cycas orixensis and Cycas nayagarhensis are found in Odisha.
Cycas siamensis is a species of cycad native to Myanmar, Thailand, and Vietnam.
Cycas multipinnata is a species of cycad in southwestern China and northern Vietnam.
Cycas dolichophylla is a species of cycad in northern Vietnam and southern China.
Cycas riuminiana, commonly known as the Arayat pitogo or simply pitogo, is a species of cycad endemic to Luzon, Philippines. It is also locally known as bayit in Tagalog and sawang in Ilocano, among other names.
Cycas lindstromii is a species of cycad endemic to southern Vietnam. It is found in Ba Ria-Vung Tau, Binh Thuan, Khanh Hoa, and Ninh Thuan provinces, Vietnam.
Cycas maconochiei is a species of cycad, endemic to Australia's Northern Territory. This species has three subspecies C. maconochiei ssp. maconochiei, C. maconochieissp. lanata and C. maconochiei ssp. viridis.
Cycas macrocarpa is a species of cycad in Malaysia and Thailand.
Cycas wadei is a species of cycad endemic to Culion island, Philippines. There is only one subpopulation of about 5,000 mature individuals, located in a small area to the east of Halsey Harbor.
Cycas saxatilis is a species of cycad found only on Saint Paul's Mountain, Palawan, Philippines.
 | This cycad article is a stub. You can help Wikipedia by expanding it. |
