Bộ Tuế

Bộ Tuế, tên khoa học Cycadales, là một bộ thực vật có hạt đặc trưng bởi thân gỗ mập mạp với lá cứng thường xanh tạo thành một tán lớn. Chúng thường có lá dạng lông chim.

==Phân loại==
Có khoảng 306 loài trong bộ Tuế, với khoảng 10–12  chi.

- Phân bộ "Cycadineae"
- Phân bộ "Zamiineae"

==Tham khảo==
- Chamberlain, C.J. (1965) [1919] "The Living Cycads", 1st ed. reprinted, New York: Hafner, 172 p., LCCN 65-027079
- De Luca, Paulo (1990) "A Historical Perspective on Cycads from Antiquity to the Present", In: Stevenson, D. (Ed.) "The Biology, Structure, and Systematics of the Cycadales", Memoirs of the New York Botanical Garden, 57, p. 1-7, ISBN 0-89327-350-3
- Donaldson, J.S. (2003) "Chapter 3: Regional Overview: Africa", In: Donaldson, J.S. (ed.), "Cycads. Status Survey and Conservation Action Plan", IUCN/SSC Cycad Specialist Group, Gland; Cambridge: UKIUCN, ISBN 2-8317-0699-8, p. 9-19
- Donaldson, J. (2004) "Saving ghosts? The implications of taxonomic uncertainty and shifting infrageneric concepts in the cycadales for red listing and conservation planning", In: Walters,T. & Osborne, R. (eds), "Cycad Classification: Concepts and Recommendations", Wallingford, UK: CABI, ISBN 0-85199-741-4, p. 13-22.
- Donaldson, J., Hill, K.D., & Stevenson, D.W. (2003a) "Chapter 2: Cycads of the World: An Overview", In: Donaldson, J.S. (ed.), "Cycads. Status Survey and Conservation Action Plan ", IUCN/SSC Cycad Specialist Group, Gland; Cambridge: UKIUCN, ISBN 2-8317-0699-8, p. 3-8
- Donaldson, J.S., Dehgan, A.P., Vovides, A.P., & Tang, W. (2003b) "Chapter 7: Cycads in trade and sustainable use of cycad populations", In: Donaldson, J.S. (ed.), "Cycads. Status Survey and Conservation Action Plan ", IUCN/SSC Cycad Specialist Group, Gland; Cambridge: UKIUCN, ISBN 2-8317-0699-8, p. 39-47
- Gregory, T.J. & Chemnick, J. (2004) Hypotheses of the relationship between biogeography and speciation in "Dioon" (Zamiaceae). In: Walters,T. & Osborne, R. (eds), "Cycad Classification: Concepts and Recommendations", Wallingford, UK: CABI, ISBN 0-85199-741-4, p. 137-148.
- Hill, K.D. (2003) "Chapter 4: Regional Overview: Australia", In: Donaldson, J.S. (ed.), "Cycads. Status Survey and Conservation Action Plan", IUCN/SSC Cycad Specialist Group, Gland; Cambridge: UKIUCN, ISBN 2-8317-0699-8, p. 20-24
- Hill, K.D. (2004) "Character evolution, species recognition and classification concepts in the cycadaceae", In: Walters,T. & Osborne, R. (eds), "Cycad Classification: Concepts and Recommendations", Wallingford, UK: CABI, ISBN 0-85199-741-4, p. 23-44. CABI, Oxford.
- Hill, K. & Stevenson, D. 1998–nay. The Cycad Pages. http://plantnet.rbgsyd.nsw.gov.au/PlantNet/cycad/
- Jones, David L. (1993) "Cycads of the World", Washington, D.C.: Smithsonian Institution Press, ISBN 1-56098-220-9. 2nd ed. republished (2002) as: "Cycads of the World: ancient plants in today's landscape", Sydney: Reed New Holland, ISBN 1-876334-69-X
- Norstog, K.J. & Nicholls, T.J. (1998) "Biology of Cycads", Ithaca: Cornell University Press, ISBN 0-8014-3033-X
- Stevenson, D., K. Norstog, & P. Fawcett. 1998. Pollination biology of cycads. In: Reproductive Biology: In systematics, conservation, and economic botany. Eds. S. Owens & P. Rudall. pp. 277–294. Royal Botanic Gardens, Kew.
- Walters, T., Osborne, R., & Decker, D. (2004) "We hold these truths… ", In: Walters,T. & Osborne, R. (eds), "Cycad Classification: Concepts and Recommendations", Wallingford, UK: CABI, ISBN 0-85199-741-4, p. 1-11
- Whitelock, L.M. (2002) "The Cycads", Portland, OR: Timber Press, ISBN 0-88192-522-5

==Liên kết ngoài==
- Palm Trees, Small Palms, Cycads, Bromeliads and tropical plants site with thousands of large, high quality photos of cycads and associated flora. Includes information on habitat and cultivation.
- Hill KD (1998–2004) The Cycad Pages, Royal Botanic Gardens Sydney. http://plantnet.rbgsyd.nsw.gov.au/PlantNet/cycad/index.html
- Gymnosperm Database: Cycads
- Fairchild Tropical Botanic Garden- one of the largest collection of cycads in the world in Florida, U.S.A.
- Palm and Cycad Societies of Australia (PACSOA)
- The Cycad Society of South Africa
- Cycad nitrogen fixation
- Cycad toxicity
- Cycads - Foto
- "The Cult of the Cycads", New York Times Magazine article on cycad collectorship and cycad smuggling
- Cycads An annotated link directory