IOWA ACADEMY OF SCIENCES. 101 



Cakile Maritima, Scop. Sanibel, Punta Rassa. Sandy 

 seashore. Infrequent. A bushy branched herb, the 

 divergent branches decumbent. 



PoiANisiA Tenuifolia, T. and (1. Marco. 



Cappaeis Cynophallophora, L. Marco, Everglade. Near 

 a mangrove swamp. InfreGjuent. 



Helianthemum Corymbosum, Michx-. Marco, Myers (3). 

 Flatwoods, especially in open places. 



Lechea Tenuifolia, Michx. Marco, Myers (4). Flatwoods. 

 Common. 



Lechea Ma.jor, Michx. var. Diraricata. Myers. Flat- 

 woods. 



Stipulicida Filiformis, Nash. Myers (5). In a cultivated 

 field. Uncommon, 



MoLLOGO Verticellata, L. Myers (10). A weed in culti- 

 vated soil. 



Trianthema Portulacastrum, L. Marco (9). Flat shell 

 land near water on seacoast. Most abundant in muddy 

 depressions w^iere it forms a carpet. 



Sesuvium Portulacastrum, L. Myers and Sanibel (11). 

 Salt marshes especi illy among the mangroves. 



PoRTULACA Oleracea, L. Puuta Rassa, Myers (8). Cul- 

 tivated fields. Apparently indigenous on the shell 

 mounds at Marco and also in other localities. Plant 

 usually lacks the red or purple color common in the 

 north. 



Portulaca Halimoides, L. Marco (5). On shell mounds 

 among cactuses in an exposed situation. Observed in 

 but one locality, w^here it was in considerable quantity. 



Portulaca Pilosa, L. Myers (7). Flatwoods and also cul- 

 tivated fields. Common. 



AscYRUM Hypericoides, L. Myers (17). Flatwood ponds, 

 along the border among the palmettos. A shrub two 

 to four feet high. 



AscYRUM Stans, Michx. Myers (16). Along the border of 

 flatwood ponds. Frequent. 



AscYRUM Amplexicaule, Michx. Myers (15). Flatwoods, 

 common. A low shrub. 



