Figure 4 from: Provance M, Sanders A (2013) Lucky morning glory, Calystegia felix (Convolvulaceae): a new species from Southern California, with notes on the historical ecology of the Chino ciénega belt. PhytoKeys 32: 1-26. https://doi.org/10.3897/phytokeys.32.6020

Figure 4 - Map of historical and recently discovered Calystegia felix occurrences in the Chino Basin. The circled E marks the plant discovered in 2011; normal circles are 2013 occurrences, the largest a cluster of three populations. The broken circle is the approximate location of Johnston's collection in 1917. The perimeter of the Chino artesian belt and "moist land" prior to 1904 is delineated by the thick black line. The street map was adapted from the City of Chino draft general plan EIR, July, 2010, and the artesian belt is based on Mendenhall (1907).