| Cycas lindstromii | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Gymnosperms |
| Division: | Cycadophyta |
| Class: | Cycadopsida |
| Order: | Cycadales |
| Family: | Cycadaceae |
| Genus: | Cycas |
| Species: | C. lindstromii |
| Binomial name | |
| Cycas lindstromii S.L.Yang, K.D.Hill & Hiep | |
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. [2]
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 pectinata was the fourth species of Cycas to be named; it was described in 1826 by Scottish surgeon and botanist Francis Buchanan-Hamilton from Kamrup, Assam in northeast India. The species is one of the most widespread cycads. It is found in the northeastern part of India, Nepal, Bhutan, northern Burma, southern China (Yunnan), Bangladesh, Burma, Malaysia, Cambodia, northern Thailand, Laos, and Vietnam. Cycas pectinata usually grow at elevation 300 m to 1200 m and in difficult terrains. In China, it grows in dry, open thickets in limestone mountains, red soil in sparse monsoon forests. Cycas pectinata grows up to 40 feet (12 m) tall and has very large, ovoid male cones. The tallest Cycas pectinata is a female plant in North Kamrup, Assam which measures 52.8 feet (16.1 m). The tree is the world's tallest Cycas plant. In Northeast India, the species is under severe threat due to clearing of forest and overcollection of male cones for preparation of traditional medicines. The species is listed in CITES Appendix II and IUCN Redlist.
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 multipinnata, common name Royal Sago, is a species of cycad or Sago Palm in southwestern China and northern Vietnam. It is noteworthy for three things: First it is one of the tuberous species which some taxonomists segregate as the genus Epicycas. Secondly, it has the longest leaf stalks (petioles) of any Gymnosperm; up to 11.5 feet. Cultivated plants have had petioles as long as thirteen feet. The total length of the bipinnate frond can be up to 23 feet seven meters) The ultimate pinnules are "Y" shaped. Thirdly, this very conspicuous plant escaped notice until 1994. Among Gymnosperms, these fronds are exceeded in mass only by Encephalartos laurentianus.
Cycas chevalieri is a species of cycad in central Vietnam, including in Nghe An Province. It may also occur in Laos.
Cycas clivicola is a species of cycad in Thailand, Cambodia, Vietnam, and Malaysia. It is found on limestone outcrops, as well as on offshore islands.
Cycas collina is a species of cycad. It is found in the Mai Sơn area of Sơn La Province, Vietnam and in Sipsongpanna, Yunnan, China. It may also exist in Laos and Myanmar.
Cycas dolichophylla is a species of cycad in northern Vietnam and southern China.
Cycas elongata is a species of cycad endemic to southern Vietnam.
Cycas sexseminifera is a species of cycad in northern Vietnam and southern China.
Cycas segmentifida is a species of cycad endemic to southern China. It is found in primarily western Guangxi, as well as parts of neighboring southern Guizhou and eastern Yunnan.
Cycas petraea is a species of cycad endemic to Thailand.
Cycas fugax is a species of cycad endemic to Vietnam. It has only been recorded in the wild from Phu Tho Province, Vietnam, but may be reasonably common in cultivation in Hanoi.
Cycas pachypoda is a species of cycad endemic to Vietnam. It is found in Binh Thuan, Ninh Thuan, and possibly Dong Nai provinces, southern Vietnam.
Cycas hoabinhensis is a species of cycad endemic to central Vietnam, where it is found in Hoa Binh, Ha Nam, Ha Tay, and Ninh Binh provinces.
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 tropophylla, the Ha Long cycad, is a species of cycad endemic to Vietnam.
Cycas saxatilis is a species of cycad found only on Saint Paul's Mountain in Palawan at Philippines.
Cycas glauca is a species of cycad endemic to the Lesser Sunda Islands of Indonesia. It occurs on Timor and Sumba islands.
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