Cypress species pollination occurs in late fall and spring . Seeds mature 15 to 18 months after pollination. Ovulate cones remain closed until opened by heat or age [8,27].
- 8. Johnson, LeRoy C. 1974. Cupressus L. cypress. In: Schopmeyer, C. S., technical coordinator. Seeds of woody plants in the United States. Agric. Handb. 450. Washington, DC: U.S. Department of Agriculture, Forest Service: 363-369. 
- 27. Wolf, Carl B.; Wagener, Willis W. 1948. The New World cypresses. El Aliso Series: Vol. 1. Anaheim, CA: Rancho Santa Ana Botanic Garden. 444 p. 
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