2 P. M. - Up Assabet to Annursnack.
Dulichium spathaceum apparently some days. Holcus lanatus long done; very abundant on the west and northwest side of Painted-Cup Meadow.
A man shows me in the street a single bunch of potato-balls (i. e. on one stem) twenty in number, several of them quite an inch in diameter and the whole cluster nearly five inches in diameter as it hangs, to some extent emulating a cluster of grapes. The very sight of them supplies my constitution with all needed potash.
Scirpus subterminalis in the Assabet at island above Dove Rock, how long?