Plants blooming and identified:
Pink Lady's Slipper (one white one)
Star Flower
Wild Lily of the Valley or Canada Mayflower
Red Trillium
Blue Violet
Bird on the Wing
Quaker Ladies or Bluets
Dandelion
Cinquefoil species
Wood Anemome
Rattlesnake Plantain
Small-flowered Crowsfoot
Wild Strawberry

New York Fern
Hay-scented Fern
Sensitive Fern
Christmas Fern
Bracken Fern

Mystery Moss: small, round, green tufts of moss on the bark of a maple? A few capsules of spores.
Orthotrichum obtusifolium - Straight Hair Tree Moss

Here's what Linda and I can add to the botany list from our paddle on Jock Stream:

Tall (common) Buttercup
Blunt-leaved Sandwort (Grove Sandwort)
False Solomon's Seal
Rhodora

Interrupted Fern
Royal Fern

--Alan Seamans