A new species, Dicerandra fumella, is described for the Florida panhandle and adjacent Alabama and compared with other taxa in the D. linearifolia complex. An extensive hybrid zone between this new species and D. linearifolia var. robustior is located in the Marianna Lowland, west of the Apalachicola River in Florida. Dicerandra linearifolia, given the superfluous name “Ceranthera linearifolia” by Stephen Elliott nearly 200 years ago and the type for his Ceranthera, can no longer be considered pandemic to the southeastern coastal plain of the United States.

Stylisma pickeringii var. pattersonii (Convolvulaceae) is endangered in Illinois and Iowa, and occurs in scattered populations in other states. During 1999 and 2000, two insect species previously unreported from Illinois were observed visiting its flowers. This study was undertaken to survey additional insect visitors, as well as to characterize the plant community where S. pickeringii occurs. The objectives were to survey: 1) floral traits (anthesis and flower density) of S. pickeringii, 2) associated plant species, and 3) insect visitor characteristics. Floral traits were determined and associated plant species surveyed in Mason County (degraded hay field on private property) and Henderson County (dry sand prairie at the Big River State Forest), Illinois. Insects visiting flowers were collected at 10:00 a.m., 12:30 p.m., and 3:00 p.m. during June, July, and August in 2001 and 2002. Individual flowers lasted one day and remained open for 6–8 hours. Peak flowering occurred from early to the middle of July when S. pickeringii was the dominant species in flower. Henderson County contained a greater diversity of native plant species with less bare ground and fewer non-native species than the Mason County site. Forty-seven insect species were observed visiting S. pickeringii flowers. Most frequent visitors were Apis mellifera (Hymenoptera: Apidae), Bombylius fraudulentus (Diptera: Bombyliidae), and Heterostylum croceum (Diptera: Bombliidae). The diversity of visiting insects was higher earlier than later in the day, in July and August than June, and in Henderson than Mason County.

Dot maps are provided to depict the distribution at the county level of the taxa of Magnoliidae and Hamamelidae growing outside of cultivation in the six New England states of the northeastern United States. Of the 227 taxa treated (species, subspecies, varieties, and hybrids, but not forms), all are mapped based primarily on specimens in major herbaria of Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, and Connecticut, with most data derived from the holdings of the New England Botanical Club Herbarium (nebc). Brief synonymy to account for names used in standard manuals and floras for the area, habitat and chromosome information, and common names are also provided.