300 AMARANTHACEAE 



i. D. linearis (Ell.) Heller (D. americana (Pers.) Britton). On 

 salt marshes, and along salt water ditches: N. S. to N. J. 

 and Tex. 



Throughout the coastal marshes within the influence of the tides. 



2. D. maritima (L.) Druce. On sea beaches, stony and muddy 

 shores, and in salt marshes: Me. to S. N. Y. and southward. 

 Also on the coasts of Europe. 



Common throughout the coastal marshes of our range. Less 

 frequent in N. J. and apparently more frequent on L. I. than else- 

 where. 



8. Salsola L. 



Calyx coriaceous, not conspicuously veined; plant maritime. I. 5. Kali. 



Calyx membranous, very strongly veined; an inland weed. 2. 5. pestifer. 



1. S. Kali L. On sea beaches : Cape Breton Island to Fla. Also 



in Europe and Asia. 



Common on sands of the sea-shore. 



2. S. pestifer A. Nelson. In cultivated and waste places: N. J. 



to Ont., N. W. Terr, and Kan. Native of the Old World. 



Sometimes confused with S. Tragus L. 



Occasional as a weed. 



Among the waifs and adventive= reported from the range the following deserve note: 

 Cycloloma atriplicifolium (Spreng.) Coult., reported from southern coastal N. J.; Beta 

 maritima L., in ballast about the metropolis; Spinacia oleracea L., not infrequent about 

 truck gardens and in ballast; Kockia Scoparia (L.) Roth has been collected at Hartford, 

 Conn., and Orient, L. I. 



AMARANTHACEAE 



Calyx 2-5 parted or of 2-5 sepals. 1. Amaranthus. 



Calyx of the pistillate flowers wanting. 2. Acnida. 



i. Amaranthus [Tourn.] L. 



Utricle circumscissile, the top falling away as a lid. 



Flowers, at least the upper, in dense terminal spikes. 

 Axils not spine-bearing. 



Spikes stout, 8-14 mm. thick. I. A. retroflexus. 



Spikes slender, 4-6 mm. thick. 2. A. hybridus. 



Axils bearing a pair of stout spines. 3. A. spinosus. 



Flowers all in small axillary clusters, mostly shorter than the 

 leaves. 

 Plant prostrate; sepals 4 or 5. 4. A. blitoides. 



Erect, bushy-branehed; sepals 3. 5. A. graecizans. 



Utricle indehiscent, membranous, coriaceous or fleshy. 



Upper flowers in terminal, more or less elongated spikes. 6. A. deflexus. 



