Pollen of the palm tree surrounding a flower petal. The pollen are the yellow dots that are next to the central, transparent mass. The pollen are uniform yellow spheres. Location was at Dabney House, Pasadena, CA 91125 on Google Maps. Time was 12:00 pm on May 10, 2019.

The palm tree that produced the pollen. Sample was collected by obtaining a bunch of the flowers, the hanging yellow bits, crushing them, and releasing the pollen onto a slide.
This species is the California Fan Palm. This is because of its fan shaped leaves, its fuzzy trunk with brown teeth, and its open frond with grape-like flowers. #caltechbi1