XXIII. 
JUNCACEZ. 
Luzula pilosa, Willd. ; quite rare; in Ham’s Ravine Woods and 
along Furnace Brook, above Silvernail Bridge.—L. campestris, 
DC. ; common. 
Juncus effusus, L.; very common in our swamps and marshes,—J. 
marginatus, Rostk.; not rare; below inlet of Thompson Pond, 
etc.—J. bufonius, L. ; not frequent; in meadow road, by She- 
komeko bridge, Milton Smith Place ; Hunting Hill.—J. tenuis, — 
Willd. ; very common. —J. pelocarpus. E. Meyer ; quite rare, 
N. shore of Thompson Pond; common along Mt. Riga Pond.— 
J. articulatus, L. ; along streams E. of Mt. Riga.—J. accumina- 
tus, Michx. ; along Poughkeepsie R. R., above Stevens's Grove; 
by Fowler Spring, Little Stissing Mt., etc.—J. nodosus L.. ; com- 
mon; Wm. Simmon’s Mountain Meadow; Stissing Pd., S. 
meadow, etc.—J. Canadensis. J. Gay ; common: Var. longicau- 
datus, Englm.; rather common; W. shore of Stissing Point ; 
Mt. Riga Pond, etc.: Var. brachycephalus, Englm. ; not rare; 
Drowned ‘Land marshes, with Valeriana sylvatica ;--also, more 
contracted, in. Bryant Hoysradt Marsh and W. of Stissing Point 
with preceding variety : Var. coarctatus, Englm. ; not found on 
the low lands of Pine Plains, but very abundant in moist 
ground on the mountains, particularly along shores of Mt. Riga 
Pond. 
Thanks are due to Dr. Geo. Engelmann, of St. Louis, for his 
revision of my determinations in this somewhat puzzling genus. 
PONTEDERIACE. 
Pontederia cordata, L. ; very abundant in most of the ponds: Var. 
angustifolia, ‘Torr.,in Drowned Lands and Bryant Hoysradt 
marshes. 
Schollera graminea, Willd.; rather common ; along E. shore of Stis- 
sing Point, Stissing Pond, etc. 
XYRIDACE&, : 
Xyris flexuosa, Muhl., Chapman; rare; Grass Pond, Mt. Riga: Var. 
pusilla, Gray, abundant along borders of Bingham Pond.—xX. 
Caroliniana, Walt, ; frequent ; Jno. Fingar Cranberry Marsh; 
Van Tassel Pond Marsh, and borders of Round Pond, Stanford. 
ERIOCAULONACEA. 
Eriocaulon septangulare, With.; common; Mud Pond ; along 
muddy shores of Mt. Riga Pond, its usual height is only one to 
two inches. 
| CyPERACEA. 
Cyperus diandrus, L.; quite common; with C. tflexus, Thomas 
Mill-pond, etc.—C. inflexus, Muhl.; quite abundant about 
Thomas’ Old Mill-pond, Shekomeko Ck., the only habitat of 
this fragrant little galingale I have discovered.—C. dentatus 
Torr. ; rarely found in some of our large sandy swamps.—C. 
phymatodes, Muhl.; along Roclif Jansens Kill.—C. strigosus, 
L.; common.—C. Michauxianus, Schultes, quite common ; 
Round Pond; Stissing Pond, etc.—C. filiculmis, Vahl.; grows 
quite plentiful in sandy fields near Mt. Riga. 
