PH | 
Nympu#a odorata, Aiton. Pond Lily. w. June, July. 2¢. Leaves 
on long petioles, floating in ponds. 
Nyssa multiflora, Walter. Pepperidge. w. June. b. 20—50 ft. 
Low woods. Drupe dark blue. 
Cinornera biennis, Linn. Sceabish. y. June—Sept. ¢. 3—4 ft. 
Fields. Flowers large. 
Gx. muricata, Linn. y. July, Aug. ¢. 1—2 ft. Dry fields. 
CE. pumila, Linn. y. 2¢. 8—15 in. Dry fields and open woods. 
Onocea sensibilis, Linn. July. 2f. Fern 12—18 in. Moist woods. 
Onosmopium hispidum, Mich. w. 2. 1—2 ft. Dry sandy woods 
near Albany. 
OpuiocLossum vu/gatum, Linn. Formerly grew two miles west of 
Troy, along the Schenectady turnpike. 
Orcuis spectabilis, Linn. r. May. 2f. 6 in. Shady places in clayey 
soil. 
Oricanum vulgare, Linn. Wild Marjoram. p. July—Sept. 2;.. 10— 
18 in. Properties allied to Mentha. 
OROBANCHE uniflora, Linn. p-w. June. 2¢. 4 in. Leafless and pa- 
rasitic. Woods. 
Oryzopsis asperifolia, Mich. Mountain Rice. May. 2. 18 in. 
Woods and ravines. 
OsMuNDA cinnamomea, Linn. June. 2¢.. Fern 2—5 ft. Wet grounds. 
O. regalis, Mich. June. 2. Fern 3—4 ft. Wet grounds. The 
roots of this and of the preceding are astringent and anthelmintic. 
O. interrupta, Mich. June. 2(. Fern 1—2 ft. Damp grounds. 
Ostrya virginica, Willd. Iron-wood. May. 6. 20—40 ft. Woods. 
Oxauts acetosella, Linn. Wood Sorrel. w-r. June. 2f. 3—4 in. 
Flowers large. Formerly grew on a dry hill, in open woods, a 
little east of Troy, but we have not seen it of late. 
O. violacea, Linn. June. 2. 4—6in. Shady places. Flowers 
violet. 
O. stricta, Linn. y. May—Aug. 4—10 in. Fields, roadsides, and 
open woods. Leaves of the several species acid. 
Oxycoccus macrocarpus, Pursh. Cranberry. r. June. 6. Creep- 
ing. Sphagnous swamps. Berries scarlet, edible. 
O. vulgaris, Pursh. r. June. 5. Creeping. Smaller than the pre- 
ceding. Sphagnous swamps. Berries scarlet, edible. 
Panax trifolia, Linn. w. May. 2. 4—6 in. Shady woods. 
P. quinquefolia, Linn. g-w. June. 2. 12—18 in. Rare. Root 
aromatic and demulcent. 
Panicum crus-galli, Linn. Cocksfoot-grass. Aug. *%. 2—4 ft, 
Roadsides and in the vicinity of cultivated fields. 
