Read your article online and download the PDF from your email or your account. Predicting mating patterns from pollination syndromes: the case of “sapromyiophily” in Tacca chantrieri (Taccaceae). chantrieri can be found growing in the understorey of natural forests in the humid tropical regions of Southeast Asia (Zhang et al., 2005). For example, how effective are flies in promoting outcrossing in other sapromyiophilous groups? 1 ). and Tacca chantrieri André, demonstrate a very high degree of geographical population stratification, consistent with a hypothesis of self-pollination (Zhang et al. 2Xishuangbanna Tropical Botanical Garden, The Chinese Academy of Sciences, Yunnan 666303, China; 3Department of Botany, University of Toronto, 25 Willcocks Street, Toronto, Ontario, Canada M5S 3B2. Flowering occurs mainly from early April to mid‐May, with sporadic inflorescences being produced until early July. One of these, T. integrifolia, is commonly called the "white bat plant." Grow it in a … 2020 1; 2018 2; 2017 … As anthesis proceeds and flowers become pendant, additional pollen grains accumulate on the stigma through autonomous intrafloral self‐pollination (Fig. We photographed all types of flower visitors, and voucher specimens of insects are preserved in the insect collections of XTBG. Pollinator visitation was infrequent and bagged flowers set abundant seed. Significantly, anthers dehisce several hours before flowers have opened, and because of the close proximity of anthers and stigmas, pollen grains are deposited on the stigmatic surface in large numbers. Genetic Diversity and Geographic Differentiation in Tacca chantrieri (Taccaceae): an Autonomous Selfing Plant with Showy Floral Display. 2006: Genetic diversity and geographic differentiation in Tacca chantrieri (Taccaceae): an autonomous selfing plant with showy floral display. Reproductive Biology of Two Sympatric Species of Plants are 50–100 cm tall with tubers or creeping rhizomes and alternate, elliptic, entire leaves. — A: Flower. Pollen : ovule ratios averaged 49, a value expected in a highly selfing species. We set up three treatments with 30 individuals per treatment using one randomly chosen inflorescence per plant. Saw (1993) reported a musky smell in T. integrifolia, but we were unable to detect any odor associated with the flowers or bracts of T. chantrieri. Previous workers have assumed that these structures function to attract flies to plants in the shaded understory of tropical forests. Shift towards autogamy in the extremely narrow endemic Aquilegia paui and comparison with its widespread close relative A. vulgaris (Ranunculaceae). We made field observations and experiments at two locations over a 3‐yr period (2001–2003) in seasonal forests. Overall visitation rates of Trigona at WEV were 0.93 ± 0.22 (range 0.43–1.53, N = 6) visits/flower/h. 2e). We investigated pollination and mating in Tacca chantrieri populations from SW China to evaluate this assumption. The two populations differed significantly in the number of flowers per inflorescence (t = 3.81, P = 0.0001, df = 98) and seed set (t = 1.98, P = 0.03, df = 43). (Taccaceae), a New Species from Yunnan, China We assigned visitors to one of two groups (visitors and pollinators), based on their behavior and likelihood of mediating pollination. +EUR 9,00 di spedizione. We used data from pollen and ovule number to calculate the mean pollen : ovule ratio (P/O) of flowers. This led the authors to suggest that most bat plants are self-pollinated. Our results indicate that despite considerable investment in extravagant display, populations of T. chantrieri are highly selfing. Contrary to this expectation, populations were highly selfing. The low pollen : ovule ratio (49) of T. chantrieri is consistent with mean values reported for other species with high selfing (obligate autogamy = 27.7, facultative autogamy = 168.5; Cruden, 1977). Temperatura minima: 12°C. (3) Given the floral biology of T. chantrieri, what are the realized patterns of mating in natural populations? These considerations lead to the expectation that if a species has high investment in extravagant displays, it should be largely outcrossing. That may explain the association between the sapromyiophilous syndrome and high humidity with a small pollen‐collecting stingless (... Dispersal and serve to attract dispersal agents to plants in the tropics mainland... And alternate, elliptic, entire leaves in pollinator attraction sapromyiophily ” in Tacca chantrieri populations from SW to. And alternate, elliptic, entire leaves in bird-pollinated Babiana ( Iridaceae ). and parental inbreeding.. 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