358 REPORT OF NEW JERSEY STATE .MUSEUM. 



Dioscorea villosa L. Wild Yam. 



Dioscorca villosa Linnaeus, Sp. PI. 1033. 1753 [Virginia and Florida]. — 

 Knieskern 31. — Willis 63. — Britton 238. 



Thickets, usually in damp ground, throughout the State, ex- 

 cept in the Pine Barren and coast districts, frequent. 



Only one of Linnaeus' references is based upon an identifiable 

 plant, and as that is our species, I prefer to retain his name. 



Fl. — Mid-June to mid-July. Fr. — Early autumn. 



Middle District— ]<i&\\ Egypt, Birmingham, Hartford, Medford (S), 

 Chairville (S), Washington Park, Dividing Creek. 

 Pine Barretts. — Landisville (T), Twelfth St., Albion, Weekstown. 

 Coast Strip. — Manahawkin, Barnegat, Coxe's, Five-Mile Beach (T). 

 Cape .¥a3'.— Goshen (S), Dias Creek (S), Cold Spring (S). 



Dioscorea villosa glabrifolia (Bartlett). Smooth Wild Yam. 



Dioscorea paniciilata glabrifolia Bartlett, Bull. 189, U. S. Dept. Agr., Bureau 

 PI. Indust., 1910. 15 [Cherokee Co., Kas.]. 



Less common than the preceding and collected only in the 

 Middle district. 



FL and Fr. — Similar to that of the preceding. 



Middle District. — Farmingdale, Pt. Pleasant, Hartford, Yorktown. 



Family IRIDACE^. Flags, etc. 



Stamens, three opposite the outer segments of the perianth, 

 style sometimes with large petal-like divisions. Comprises our 

 Flags and Blue-eyed Grasses. 



Key to- the Species. 



a. Flowers blue. 



b. Style branches broad and petal-like, flowers large. 



c. Leaves 12-25 mm. wide. /. versicolor, p. 359 



cc. Leaves 3-5 mm. wide. /. prismatica, p. 359 



hh. Style branches filiform or obsolete, flowers small. 



c. Stem usually simple with a sessile terminal spathe. 



d. Capsules dark, 4-6 mm. high, pedicels about as long as the 

 inner bract, stems 1.5-3 mm. broad, spathes usually green. 



Sisyrhinchium angiistifolium, p. 360 

 dd. Capsules pale, 2-4 mm. high, pedicel longer than the inner 

 bract, stems 5-1.5 mm. broad, spathes usually purplish. 



S. niucronatum, p. 360 

 cc. Stem branched above, bearing two or more spathes. 



