21. Additionally, bees which develop preferences for varied plant genera are likely to have more stable food resources over long periods of time. 22. This species is a frequent inhabitant of the ant plant genera : " Myrmecodia " and " Hydnophytum ". 23. As a botanist, he was the taxonomic author of Alliaceae and Asclepiadaceae as well as the circumscriber of numerous plant genera and species. 24. "' Tamaricaceae "'( the tamarisk family ) is a flowering plant genera and a total of 78 known species. 25. Myrmecochory ( seed dispersal by ants ) is also observed in other Fumariaceae and has evolved independently in many other plant genera as well. 26. The Sonoran Desert includes plant genera and species from the agave family, palm family, cactus family, legume family, and numerous others. 27. Dahlstedt specialized in research of the plant genera " Taraxacum " and " Hieracium ", of which he circumscribed many species. 28. The first edition of " Genera Plantarum " contains brief descriptions of the 935 plant genera that were known to Linnaeus at that time. 29. Tasmania hosts endemic plant genera as well as plant genera of restricted distribution; an example of such a genus is " Archeria ". 30. Tasmania hosts endemic plant genera as well as plant genera of restricted distribution; an example of such a genus is " Archeria ".