No. 50.] 179 
Orper ALISMACEA. Tue Water-Pianrain TRIBE. 
Sacirtrania, L. Arrow-head. 
sagittifolia, L. Ditches and wet grounds. July-August. 
Var. 1. vulgaris, Hook. S. sagittifolia, Ph. 
— 2. latifolia, Torr. Var. macrophylla, Hook. S. latifolia 
and obtusa, Ph. 
. pubescens, Torr. 
. hastata, Torr. S. hastata, Pursh. 
. gracilis, Torr. S. gracilis and heterophylla, Ph. 
. simplex, Hook. S. simplex, graminea & acutifolia, Ph. 
. rigida, Torr. S. rigida, Pursh. 
pusilla, Nutt. Muddy banks of streams. August. 
| 
Ioo - Ww 
Auisma, L. Water Plantain. 
plantago, L. A. parviflora, Pursh. In water. July-August. 
Orpver JUNCEA. ‘Tue Rusu Trise. 
 Lozuta, D.C. 
campestris, D.C. Meadows and dry woods. April-May. 
pilosa, Willd. Open woods, banks of rivers, &c. Northern and 
western counties. May. 
melanocarpa, Desv. High mountains of Essex county. July. 
Juncus, L. Rush. 
effusus, Z. Low wet grounds. June. 
filiformis, Z. Borders of lakes, northern and western counties. 
July. 
balticus, Willd. Sandy shore of Lake Erie and the St. Lawrence. 
July. 
nodosus, L. J. polycephalus, Miche. J. echinatus, Ell.? Wet 
meadows and swamps. June. 
tenuis, Willd. Low grounds, and in dry places. June-July. 
acuminatus, Michr. Borders of ponds, &c. July. 
marginatus, Rostk. Sandy wet places. June-July. 
bufonius, L. Wet low grounds. July. 
trifidus, L. Summit of Mount Marcy, Essex county. 
bulbosus, LZ. Salt marshes. July-August. 
stygius, L. Sphagnous swamps, near Perch lake, Jefferson county. 
August. Dr. Gray. 
