PIjAiNTS OF SO-UTHERN NEW JERSEY. 145 



Isoetes echinospora braunii (Durien). Braun's Quillwort. 



Isoetes Braunii Diirien, Bull. Soc. Bot. France XI: loi. 1864 [Lake Wiiine- 

 pesaukee, N. H.]. — Britton 302. — Keller and Brown 17. 



Sparingly on the Delaware above Camden and at Toms River, 



also in ponds and lakes of the northern counties. 



Middle District. —Toms River (P). 



Isoetes canadensis (Engelm.). Dodge's Quillwort. 



Isoetes riparia var. Canadensis Engelmann, Trans. Acad. Sci., St. Louis, 



IV: 383. 1882 [Maine]. 

 Isoetes Dodgci Keller and Brown 17. — Stone, Proc. Acad. Nat. Sci. 1908, 457. 



Sparingly on the Delaware above Camden. 



Middle District. — Fish House. 



Isoetes saccharata Engelm. Canby's Quillwort. 



Isoetes saccharata Engelmann, Gray's ^lan. Ed. V : 676. 1867 [Wicomico 

 River, Md.]. 



Sparingly on the Delaware above Camden. Originally dis- 

 covered in Maryland by Wm. M. Canby. 



Isoetes riparia Engelm. Shore Quillwort. 



Isoetes riparia Engelmann, A. Br. Flora 29:178. 1846 [Shore of the Dela- 

 ware, near Philadelphia]. — Britton 302. — Keller and Brown 17. 



Plentiful along the shores of the Delaware above Camden. 



Middle District.— Camden (P). 



SPERMATOPHYTA. Seed-bearing Plants. 

 Class GYMNOSPERM>^. 



Order PINALES. 



A group of trees sharply seiDarated from all others by their 

 needle or scale-like (usually evergreen) leaves, resinous odor and 

 cone-like fruit, modified in some species into a berry-like struc- 

 ture. 



The Pitch Pine, Yellow Pine and White Cedar are the trees 

 that give character to the Pine Barren district, while the Jersey 

 Pine and Red Cedar are equally characteristic of the Middle 



10 MUS 



