PUAiNTS OF SOUTHERN NEW JERSEY. 157 



a. Sepals blue, like the petals. 



IridacecB, p. 358 

 in. Flowers whitish or purple, odor 

 of garlic. Allium, p. 344 



hhh. Flowers in large open panicle or 

 branched spike. Melanthium, p. 342 

 or Zygadenus, p. 342 

 hhhh. Flowers in a moderate panicle ; 

 flowers white, woolly. 

 Lophiola and Gyrotheca, pp. 355, 354 

 ggg. Flowers with inconspicuous perianth, 

 green or brownish, in an open (or con- 

 gested) panicle; scattered singly or clus- 

 tered in heads. Leaves grass-like or awl- 

 shaped, and whole plant resembling a 

 sedge. 



Juncus and Scheuchzeria, pp. 328, 167 

 cc. Flowers irregular. 



d. Flowers slightly irregular, lateral petals larger than lower 

 one. Included in a folded leaf-like bract. Stamens three. 



Commelina, p. 326 



dd. Flowers markedly irregular, lower petal modified into a 



more or less elaborate lip, lateral petals much smaller, 



sepals slender and alike. Orchidacece, p. 361 



hbh. Vines (or upright herbs with tenrils), flowers greenish. 



c. Flowers in umbels, stems often woody and armed with spines, 



fruit a berry. Smilax, p. 351 



cc. Flowers in panicles or recemes, fruit winged. Dioscorea, p. 357 



Order PANDANALES. 



Comprises the Cat-tails and Bur-reeds. The former mainly 

 restricted to the coast and river marshes, the latter to inland or 

 coast swamps and streams. 



Family TYPHACE^: Cat-tails. 



Key to the Species. 



a. Leaves often nearly or quite an inch in width, staminate and pistillate 



portions of the spike contiguous, the former soon withering, but its stalk 



remaining at the end of the pistillate spike. Typha latifolia, p. 158 



aa. Leaves not over half an inch in width, staminate spike separated by a 



short intervals from the pistillate. T. angustifolia, p. 158 



