I've been so busy this spring that I haven't had much time to get out and botanize. This past Tuesday evening, I visited property of friends of ours just northeast of Potato Creek State Park in St. Joseph County, Indiana. Unfortunately, there wasn't enough daylight for me to take photos at that time. Today, Lindsay, Bootypants, and I went back to this mesic upland forest to snap some shots.
Erythronium americanum. Very few individuals of this species still had flowers; most had dropped petals and were developing fruit.
Asarum canadense. I'd never noticed the white portion of the inside of the calyx.
Phlox divaricata. The best I can tell, this is ssp. divaricata, with notched petals. Unfortunately, the references I've seen say that the unnotched variety/subspecies sometimes has notched petals, and vice versa.
Phlox divaricata ssp. laphamii. Notice the unnotched petals. The two varieties apparently overlap near the Indiana-Illinois state line, with ssp. divaricata more eastern and ssp. laphamii more western.
Many other species were blooming, but I missed seeing the earliest species (Sanguinaria canadensis, Erigenia bulbosa, etc.) in Indiana this year.