78. 
6. Heads hemispherical to nearly spherical......... J. canadensis 
6. Heads less than hemispherical............+-++++e- J. acuminatus 
Juncus bufonius L. Toad-rush 
Ivy Neck. Principal station in marsh at head of Cheston Creek 
estuary. Hectare 4753. Co-dominant with Eleocharis palustris. 
Adjacent to stands of Typha latifolia and Scirpus validus. 
Infrequent at forest border of cornfield; there associated with 
Juncus tenuis. Higman 739, 838. 
J. tenuis Willd. Bog-rush 
Java Farm and Ivy Neck. Moderately abundant on dry, unshaded 
areas (fields, bluffs overlooking Rhode River near Sand Point, etc.), 
roadsides, and cracked pavement. Wide variation of associate species. 
Hioman) 2471735) 7965 824.837, 839. 
Juncus tenuis, f. anthelatus (Wieg.) F. J. Herm. 
Java Farm. One station in broken pavement at Fox Point. Hectare 
3557. Canopy of Quercus prinus. Higman 434. 
J. dichotomus Ell. Bog-rush 
Java Farm. One station: in Hog Island salt marsh. Hectare 
3582. Associate species: Panicum virgatum. 
Ivy Neck. One station: marshy north end of abandoned wheat- 
field. Hectare 4762. Associate species: Juncus effusus, Carex 
frankii, Carex scoparia, and Scirpus atrovirens. Higman 304, 749. 
J. effusus L., var. solutus Fern. & Wieg. Soft Rush 
Java Farm. Infrequent at marshy west end of meadow north of 
main buildings. Hectare 2468. Associate species: Phalaris 
arundinacea (dominant), Polygonum saggitatum, and Scirpus rubricosus. 
Ivy Neck. Infrequent at marshy end of abandoned wheatfield. 
Hectare 4762. Associate species: Carex scoparis, Eleocharis 
intermedia. Higman 748, 880. 
J. canadensis J. Gay Bog-rush 
Java Farm. One station: bank of Muddy Creek above entrance 
road culvert. Hectare 2467. Open canopy of Platanus occidentalis, 
Fagus grandifolia, and Liriodendron tulipifera. Understory of 
Cornus florida and Lindera benzoin. Associate species: Glyceria 
striata, Panicum clandestinum, and Duchesnea indica. Higman 792. 
