Reference citation:
Clements, F.E. & Long, F.L. (1923). Experimental Pollination An Outline Of The Ecology Of Flower And Insects. Carnegie Institute of Washington, Washington, D.C.

Source citation:
National Database Plant Pollinators. Center for Plant Conservation at San Diego Zoo Global. Accessed via https://saveplants.org/national-collection/pollinator-search/ on 2020-06-05.

Source archive URL:
https://github.com/globalbioticinteractions/cpc-pollinators/archive/c0ea6f2fd5d7bc9d2db5cb0f27248b84637e20ef.zip

Reference citation:
Justin. 2020. Apis mellifera pollinates Asclepias speciosa. iNaturalist.org. Accessed at on 23 Jan 2021.

Source citation:
http://iNaturalist.org is a place where you can record what you see in nature, meet other nature lovers, and learn about the natural world.

Source archive URL:
https://github.com/globalbioticinteractions/inaturalist/archive/8d3e240982f0f68b3da2767abe9b27e5bbfeed41.zip

Reference citation:
Clements, R. E., and F. L. Long. 1923, Experimental pollination. An outline of the ecology of flowers and insects. Washington, D.C., USA, Carnegie Institute of Washington.

Source citation:
Sarah E Miller. 6/22/2015. Species associations manually extracted from datasets https://www.nceas.ucsb.edu/interactionweb/resources.html.

Source archive URL:
https://github.com/millerse/Clements-R.-E.-and-F.-L.-Long/archive/6e89c49b0648866fb2d90daa73bb12d34b31cb69.zip