| Title | Manual of the Botany of the Northern United States, ... Sixth edition |
| Abbreviation | Manual (Gray), ed. 6 |
| Authors | S. Watson: J. M. Coulter |
| Publication Dates | Jan-Mar 1890 |
| TL2 | 2.124 |
| Remarks | 6th ed., 1890 S. Watson & J. M. Coulter |
The Harvard University Herbaria hold 14 type specimens of taxa described in this publication
Cyperus calcaratus Nees, S. Watson & J. M. Coulter [Holotype] 1890, p. 570Lespedeza stuevei var. intermedia S. Watson [Syntype] 1890, 141
Sagittaria teres S. Watson [Syntype] 1890, 555
Sagittaria teres S. Watson [Syntype] 1890, 555
Sagittaria teres S. Watson [Lectotype] 1890, 555
Sagittaria teres S. Watson [Isolectotype] 1890, 555
Aristida dichotoma var. curtissii A. Gray ex S. Watson & Coulter [Holotype] 1890, 640
Elymus canadensis var. intermedius Vasey [Type] 1890, 673
Glyceria grandis S. Watson [Lectotype] 1890, 667
Eriogonum allenii S. Watson [Holotype] 1890, 734
Cimicifuga racemosa var. dissecta A. Gray [Syntype] 1890, 47
Cimicifuga racemosa var. dissecta A. Gray [Syntype] 1890, 47
Phacelia covillei S. Watson [Type] 1890, 360
Strophostyles angulosa var. missouriensis S. Watson [Type] 1889, 145