214 REPORT OF NEW JERSEY STATE MUSEUM. 



Flowering Data. — Time of year indicates the season during 

 \vhich well developed involucres and intact racemes are present. 



Cenchrus carolinianus Walt. Hedgehog Grass. Sand Bur. 



PI. XV., Fig. 6. 

 Cenchrus carolinianus Walter, Flor. Carolina, 79. 1788 [Carolina, probably]. 

 Cenchrus iribuloides Knieskern 40. — Britton 282 (in part). — Keller and Brown 



39- 

 Cenchrus echinatus Muhlenberg, Cat. 7. 1813. — Barton Flora Phila. I. 38. 

 1818.— Muhlenberg Gram. 51. 1817.— Torrey Fl. U. S. I. 68. 1824. 



Common in sandy soil throughout our region, extending into 

 the Northern district along the Delaware and in Bergen Co., 

 according to Britton. 



The character of the occurrence of this grass would seem to 

 indicate that it was not originally found in the Pine Barrens or 

 Coast region, but has entered from the surrounding areas. 



Fl. — Mid-July to late September. 



Middle District. — New Egypt, Delanco, Camden, Blackwood, Washington 

 Park (S). Swedesboro. 

 Pine Barrens. — Landisville, Twelfth St., Absecon (S). 

 Coast Strip. — Beach Haven (L). 

 Cape May. — Court House (S), Goshen (S), Dias Creek. 



Cenchrus tribuloides L. Coast Sand Bur. 



Cenchrus tribuloides Linna?us, Sp. PI. 1050. 1753 [Coast of Virginia]. — 

 Muhlenberg, Cat. 7. 1813. — Pursh Fl. Am. Sept. I. 60. 1814. — Muhlenberg 

 Gram. 52. 181 7.— Torrey Fl. U. S. I. 69. 1824. 



Cenchrus macrocephalus Keller and Brown 39. 



Common on sand dunes along the lower half of the coast. 

 Fl. — Mid-July to mid-September. 



Maritime.—Smi City (L), Tucker's (L), Beach Haven (L), Holgate's 

 (L), St. Albans (L), Spray Beach (L), Atlantic City, Longport (S), Ocean 

 City, Stone Harbor (S), Anglesea, Wildwood, Cape May (OHB). 



ZIZANIA L. 



Zizania palustris L. Wild Rice. 



Zizania palustris Linnaeus, Mantissa II. 295. 1771 [North America]. 

 Zizania aqiiatica Knieskern 2,7- — Barton Fl. Phila. H. 168. 1818. — Britton 283. 



Plentiful in water along the larger rivers and swamps of the 

 Middle and Cape May districts and the Coastal strip, running 

 well up into the Pine Barrens along the principal water courses, 

 but not strictly speaking, a member of the Pine Barren flora. 



