and Schindler (1905): The illustrations in Britton Brown is P. palustris, derived from Gaertner. Nov. 7 (Thursday) Spent the day at Columbia library, looking up: 1) Mitchell's general (published in 1846, hence descriptions are not valid; 2) Gray's criticism of Bartolini's late - Bona Plants (Fats' Collection) in Silliman's Journal; 3) Bertoloni. The descriptions are full and the plates (some colored) are fairly good- Bertoloni erred often in the genus (especially Compositae and Leg- uminosae) but these groups were especially difficult, and Bartoloni had probably very little material in the way of comparison. The figures (eg. Euphorbia corollata (clender form) and Sericeocarpus linifolius) are apparently based on the same collections that are in Brooklyn Nov. 8. (Friday) Finished collections made at Forked River. Panicum segarium, P. albemarlime, color variations in fruit of Cyrus arbustiflue are chief additional items of interest. Started on Tennessee Helianthus. It would appear that this Watson has made an unusually large number of new species. A large number of these are probably only varieties, Nov. 9 (Saturday) Looked over Tennessee coll. of Helianthus. There is apparently great variability in H. divaricatus, called by me both H. hispidus. The two seem to be inseparable as far as species is concerned. Thus Watson's work on Helianthus does not appear to be very profound and dorthouse is greatly in need of revision.