Acampe rigida
Template:Short description Template:Speciesbox
Acampe rigida is a species of orchid native to the forests of tropical southern Asia where it grows on trees and rocks at altitudes of up to Script error: No such module "convert"..
Description
_-_John_Lindley_-_Collectanea_botanica_(1821).jpg){kind=link}
Acampe rigida is a robust species with an unbranched stem up to Script error: No such module "convert". in length and Script error: No such module "convert". in diameter. The leaves are distichous. The stem nodes are about Script error: No such module "convert". apart and each bears a somewhat fleshy, upright leaf with sheathing base. The apices of the leaves are obtuse and unequally bilobed. The inflorescence is unbranched or sparsely branched, with many slightly fragrant, upturned, cup-shaped flowers less than Script error: No such module "convert". in diameter. The petals are fleshy, and are yellow with purplish-brown stripes; they have a thick, white, three-lobed lower lip, and a short spur. They are followed by cylindrical or fusiform capsules.[1]
Distribution and habitat
Acampe rigida is native to the Andaman Islands, Assam, Bangladesh, Bhutan, Cambodia, China, India, Laos, Malaysia, Myanmar, Nepal, the Philippines, Sri Lanka, Thailand and Vietnam.[2][1] It occurs in forests, either growing epiphytically on the branches and trunks of trees, or growing on rocks, and often forming dense clumps. Its altitudinal range is from Script error: No such module "convert"..[1]
Ecology
Acampe rigida is a deceptive orchid in that it produces a fragrance that may attract insects but does not then offer them any reward. It is self-compatible, but has not evolved any particular mechanism to enable self-pollination. In Guangxi province in southwestern China, it flowers in late August and September, at a time of year when rain falls almost daily and insect pollinators are scarce. In a research study, after many hours of observation, a single insect was observed to visit a flower, but pollination did not occur. Instead, the plant exhibited ombrophily; rain drops falling on the tips of the stamens knocked the caps off the anthers, and further drops caused the pollinia to be ejected upwards, after which strap-like stipes arrested their movement and caused them to land in the stigma cavity, resulting in self-pollination. A high rate of fruit set occurred, but without the action of the raindrops, self-pollination did not occur and fruit did not set.[3]
References
<templatestyles src="Reflist/styles.css" />
- ↑ a b c Flora of China v 25 p 449, 多花脆兰 duo hua cui lan, Acampe rigida (Buchanan-Hamilton ex Smith) P. F. Hunt, Kew Bull. 24: 98. 1970.
- ↑ Kew World Checklist of Selected Plant Families
- ↑ Script error: No such module "Citation/CS1".
Script error: No such module "Check for unknown parameters".