PLANTS OF SOUTHERN NEW JERSEY. 359 



d. Inner bract scarious obtuse, 10-15 mm. long, stems wiry, often 

 geniculate, plant pale and glaucous. S. atlanticum, p. 360 



dd. Inner bract acute, not scarious. 



e. Pedicels about as long as the inner bract. 



S. angiistifolium, p. 360 

 ee. Pedicels longer than bract. 



/. Stems .5-1.5 mm. broad, narrowly winged, not black 

 when dry. S. mucronatum, p. 360 



/■'/'. Stems 1.5-6 mm. broad, black when dried. 



g. Base of tufts covered with fibers, stem narrowly 



winged. S. arenicola, p. 360 



gg. Base of tufts without coarse fibers stem, broadly 



winged. S. grmninoides, p. 360 



aa. Flowers crimson and purple mottled. [Genimingia chinensisY'' 



IRIS L. 



Iris versicolor L. Large Blue Flag. 

 XXXVII., Fig. I. 

 Iris versicolor Linnseus, Sp. PI. 39. 1753 [Virginia, Maryland and Pennsyl- 

 vania]. — Knieskern 31. — Willis 63. — Britton 273. 



Swamps or meadows ; common throughout the State except 

 in the Pine Barrens. 



Fl. — Mid-May to mid-June. 



Middle District. — New Egypt, Dlelanco, Timber Creek, Camden, Medford 

 (S), Haddonfield, Lindenwold (S), Sewell (S), Swedesboro, Dividing Creek. 



Pine Barrens. — Landisville (introduced?). 



Coast Strip. — Cox's, Ship Bottom (L), Barnegat City Jnc. (,L), Piermont,. 

 Holly Beach (UP), Cold Spring (OHB). 



Iris prismatica Piirsh. Slender Blue Flag. 



Iris prismatica Pursh, Fl. Am. Sept. 30. 1814 [New Jersey near Egg Harbor]. 

 — Barton, Fl. Phila. I. 21. 1818. — Britton 273. — Keller and Brown loO. 

 Iris virginica Knieskern 31. — 'Wilis 63. 



Swamps ; occasional in the northern counties, common in the 



Middle and Pine Barren districts. 



Fl. — ^Late May tO' late June. 



Middle District. — New Egypt, Shark River, Pt. Pleasant, Pemberton Jnc. 

 (S), Burlington, Lindenwold. 



Pine Barrens. — Forked River, High Bridge (S), White Horse, Bear 

 Swamp, Landisville, Sicklerville (S), Williamstown Jnc, Winslow Jnc, 

 Hammonton, Egg Harbor City, Tuckahoe (S). 



Coast Strip. — Sherburn's (L), Holgate's (L). 



Cape May.— Cold Spring (OHB). 



* Blackberry Lily, an Iris-like plant, occasionally escaping from cultivation. 



