+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Pollination ecology of epipactis palustris orchidaceae

, : Pollination ecology of epipactis palustris orchidaceae. Botaniska Notiser 131(3): 355-368

Observations on the pollination of E. palustris (L.) Crantz, mainly from the island of Oland, southern Sweden, are reported. A broad spectrum of insects feeding on the nectar was recorded. Ants, bumble-bees and hover-flies were the most frequent visitors, but generally played a minor role as pollinators. Solitary wasps (Hymenoptera, Eumenidae) were the most important pollen vectors, although only present at low frequencies. Ants were important pollinators in 1 locality. Entomogamy prevails and the frequency of visits is much lower if the plant is growing in association with entomophilous competitors. Deposition and frequency of pollinaria, morphology and action of the hinged labellum, and the time of flowering all suggest that E. palustris is adapted to pollination by solitary wasps, perhaps primarily to males of the genus Eumenes Latr. The hinge seems to be an adaptation to the peculiar form of the 1st abdominal segment of these wasps. The structure of the labellum obliges the wasps to perform an involuntary balance-act which obviously results in efficient contact between head and column. No support was found for Darwin's theory that the distal part of labellum actively throws the insect against the rostellum. Honey-bees seldom acted as pollen vectors and do not fit the flowers morphologically.

Accession: 006139080

Submit PDF Full Text: Here

Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:

Related references

Scacchi, R.; Lanzara, P.; De-Angelis, G., 1987: Study of electrophoretic variability in epipactis helleborine l. crantz epipactis palustris l. crantz and epipactis microphylla ehrh. swartz family orchidaceae. Allozymic variation in seven enzymes coded by eight loci was studied in seven populations of terrestrial Epipactis orchids, including four populations of E. helleborine, one population of E. palustris and two of E. microphylla, from Latium (Centra...

Ivri, Y.; Dafni, A., 1977: The pollination ecology of Epipactis consimilis Don (Orchidaceae) in Israel. Pollinators were 8 species of hoverflies (Syrphidae).

Ivri Y.; Dafni A., 1977: The pollination ecology of epipactis consimilis orchidaceae in israel. Observations on the pollination ecology of E. consimilis in Israel are described. The pollinators were 8 spp. of 5 genera of hover flies (Syrphidae) [Sphaerophoria scripta, S. rueppellii, Metasyrphus corollae, Paragus bicolor, P. aegyptius, P. tib...

Rodkiewicz B., 1981: Ultrastructural changes during mega sporogenesis in epipactis palustris orchidaceae. Acta Societatis Botanicorum Poloniae2: 127-130

I.T.?a?aj; E.B.zosko, 2008: Selfing potential in Epipactis palustris , E. helleborine and E. atrorubens (Orchidaceae). Factors enabling and limiting self-fertilization were examined in populations of Epipactispalustris, E. helleborine and E. atrorubens located in NE Poland. In these species we found self-compatibility within the same flower (even 100% of fruit set...

Verbeke C.; Verschueren Y., 1984: The pollination of epipactis palustris from bakkersdam netherlands. Insects foraging on E. palustris were collected during the flowering seasons of 1981, 1982 and 1983. E. palustris attracted a large number of brachycerous Diptera (99 specimens, 38 spp.). Nematocerous Diptera, Coleoptera, Hemiptera and Hymenoptera...

Rasmussen, H.N., 1992: Seed dormancy patterns in Epipactis palustris (Orchidaceae): requirements for germination and establishment of mycorrhiza. Some terrestrial orchid species, including E. palustris, are considered extremely difficult to germinate and cultivate in vitro. Observations of orchids germinating in nature are very few, and the timing and requirements for seedling establishment...

Bonatti, P.Medeghini.; Sgarbi, E.; Del Prete, C., 2006: Gynostemium micromorphology and pollination in Epipactis microphylla (Orchidaceae). Self-pollination conditions have been recorded frequently in local populations of the genus Epipactis, and structural modifications have sometimes been reported, supporting taxonomic recognition of new species. As part of a survey of gynostemium m...

Kowalkowska, A.K.; Kostelecka, J.; Bohdanowicz, J.; Kapusta, Młgorzata.; Rojek, J., 2016: Studies on floral nectary, tepals' structure, and gynostemium morphology of Epipactis palustris (L.) Crantz (Orchidaceae). The lip of Epipactis palustris consists of two movably joined parts: the basal part (hypochile) with central broad isthmus and epichile with callus. The analysis of flowers provides strong evidence to conclude that the whole surface of lip callus...

Esfeld, K.; Hensen, I.; Wesche, K.; Jakob, S.S.; Tischew, S.; Blattner, F.R., 2008: Molecular data indicate multiple independent colonizations of former lignite mining areas in Eastern Germany by Epipactis palustris (Orchidaceae). Former lignite mining areas in Eastern Germany are valuable secondary habitats for many plant and animal species endangered in the natural landscape. Here, we present a study on genetic structure and diversity of 16 populations of the threatened o...