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5 results for “cleistogamy”
Dataset from Competition and drought affect cleistogamy in a non-additive way in the annual ruderal Lamium amplexicaule
<p>Data associated with the manuscript 23147-TS1R1 published in AoB Plants. For detailed information about files and their content see ReadMe</p>
Data from: A novel case of autogamy and cleistogamy in Dendrobium wangliangii: a rare orchid distributed in the dry-hot valley
Dendrobium wangliangii is an epiphytic orchid distributed in the Jinshajiang dry-hot valley in Luquan County, Yunnan Province, China. Most Dendrobium spp. typically have a low fruit set, but this orchid shows a higher fruit set under natural conditions despite the lack of effective pollinators. The pollination biology of the critically endangered D. wangliangii was investigated in this study. A fruit set rate of 33.33±4.71% was observed after bagging treatment in 2017 and a high fruit set rate (65.72±4.44% in 2011; 50.79±5.44% in 2017) was observed under natural conditions, indicating that D. wangliangii is characterized by spontaneous self-pollination. The anther cap prevented the growing pollinium, thus the pollinium slid down and reached the stigmatic cavity, leading to autogamous self-pollination. Specifically, 51.50% of 162 unopened flowers (total 257 flowers) of this Dendrobium species under extreme water-deficit conditions developed into fruits, suggesting the presence of cleistogamy in D. wangliangii. Here, cleistogamy may represent the primary mode of pollination for this orchid. Spontaneous self-pollination and specific cleistogamous autogamy could represent major adaptions to the drought and pollinator-scarce habitat in the Jinshajiang dry-hot valley.
FIGURE 2 in Gastrodia flexistyloides (Orchidaceae), a new mycoheterotrophic plant with complete cleistogamy from Japan
FIGURE 2. Gastrodia flexistyloides (from the holotype). A. Habit. B–D. Flower. (B, back view; C, front view; D, side view). E. Flattened flower. F. Flattened perianth tube with lip. G. Longitudinal section of the flower. H. Lip. I–K. Column (I, front view; J, back view; K, lateral view). A. Bar = 3 cm. B–G. Bar = 5 mm. I–K = 3 mm. H. Bar = 1 mm.
FIGURE 1. A in Gastrodia flexistyloides (Orchidaceae), a new mycoheterotrophic plant with complete cleistogamy from Japan
FIGURE 1. A. Flowering plants of Gastrodia flexistyloides (from the type locality; bar = 2 cm). B. Dissected flower. C. Lip. D–F. Column (D, front view; E, back view; F, lateral view). A. Bar = 2 cm. B. Bar = 5 mm. C–F. Bar = 2 mm.
Data from: A novel case of autogamy and cleistogamy in Dendrobium wangliangii: a rare orchid distributed in the dry-hot valley
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