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Simira maxonii (Rubiaceae) is a moderate sized canopy tree found in tropical evergreen forests in Costa Rica, Nicaragua and Panama. This tree can grow up to 20 meters tall and it has crooked, drooping branches with very rough bark. Leaves are very large, are oppositely arranged and elliptically shaped, with large stipules (up to 4 centimeters long) present between the leaves.
Simira maxonii (Rubiaceae) is a moderate sized canopy tree found in tropical evergreen forests in Costa Rica, Nicaragua and Panama. This tree can grow up to 20 meters tall and it has crooked, drooping branches with very rough bark. Leaves are very large, are oppositely arranged and elliptically shaped, with large stipules (up to 4 centimeters long) present between the leaves (Gargiullo et al. 2008).
Wet forest on both Caribbean and Pacific slopes, from sea level to 300m.From Nicaragua to Panama (Gargiullo et al. 2008).
S. maxonii is a shade-tolerant species found in the understory of evergreen forests. It is often found along small forest streams, where they have more access to direct sunlight. When forest next to a mature tree is removed and part of the tree has unlimited access to light, a huge flower and fruit crop is produced on the sunlit area. This response suggests that each individual branch is programmed to respond to light access with flowering (Janzen 1983).
Single yellow flowers are produced in succession from July to September, however flowers are only ever produced on branches that have direct contact with sunlight during the day. As a result, a very small percentage of branches actually flower and fruit because of lack of under-canopy light. These small single yellow flowers are pollinated by long tongued bees, including Euglossini. Up to ten fruits may form on a branch after pollination occurs, and can reach neary full size (5-7cm) within a month. They remain this size as grayish green spheres for the next 8 months and sometimes longer. The fruit either falls from the tree partially ripened or rots on the tree leaving the 20-35 seeds with wings to spin off onto the ground. Once on the forest floor, terrestrial rainforest rodents often predate these seeds (Janzen 1983).
This tree grows to approximately 20 meters tall and is irregularly corded, and commonly found with crooked, drooping branches (Gargiullo et al. 2008).
When fruits are immature but full sized and brown, Rosella sickingiae weevils of approximately 1 cm in length may feed through the fruit rind and into the fleshy pulp, but do not reach the seeds. After feeding, a female weevil would lay either one or multiple (but not more than 4) eggs into the hole where she has just fed. Larvae burrow through the fruit and eat the seeds. Fruits with larvae usually lose 25-90% of their seeds and turn bright pink red instead of its usual white coloration when exposed to the air. Larvae pupate in the fruit and emerge from the fruit rind as an adult weevil and travels to eat nearby younger fruit (Janzen 1983).
Simira maxonii là một loài thực vật có hoa trong họ Thiến thảo. Loài này được (Standl.) Steyerm. miêu tả khoa học đầu tiên năm 1972.[1]
Simira maxonii là một loài thực vật có hoa trong họ Thiến thảo. Loài này được (Standl.) Steyerm. miêu tả khoa học đầu tiên năm 1972.
