MIDDLESEX FLOKA. 85 



SU^EDA, Forsk. 



S. linearis, Torr., var. ramosa, Wats. (S. maritima, Dumort., 

 Man.) 

 Salt marshes, very common. Aug. 



SALSOLA, L. 



S. Kali, L. SALTWORT. 

 Not uncommon in sandy soil near tide-water. Aug. 



AMARANTACE/E. AMARANTH FAMILY. 



AMARANTHS, Tourn. 



A. paniculatus, L. 



Wakefield, Woburn and Cambridge (F. S. Collins). July-Sept. 

 Adv. from Trop. Am. 



A. RETROFLEXUS, L. PIGWEED. 



Very common. July-Sept. Nat. from the South and West. 



A. CHLOROSTACHYS, Willd. (A. retroflexus, L., var. chlorostachys, 

 Man.) 

 Not uncommon. July-Sept. Nat. from the South and West. 



A. ALBUS, L. 

 Common. July-Sept. Nat. from the South and West. 



A. BLITUM, L. 



Maiden, Medford and Concord (F. S. Collins). Probably not un- 

 common, but generally confounded with the preceding species. 

 July-Sept. Nat. from Eu. 



" Flowers 3-parted, the axillary clusters roundish, the terminal dis- 

 posed in naked spikes; stems diffuse, ascending, smooth; leaves 

 ovate, subrhomboidal, very obtuse, retuse ; bracts shorter than the 

 flowers; capsule roundish ovate." Koch, Syn. Fl. Germ. 



A. grcecizans, L. 



Lowell, "dump" (Dr. C. W. Swan). Aug. Adv. from S. Am. 

 "Like A. Blitum, but more slender, with lanceolate, obtuse leaves." 

 DC. Prodr. XIII. 2. 263. 

 A. SPINOSUS, L. THORNY AMARANTH. 



Lowell, waste-grounds (Dr. C. W. Swan) ; Maiden, introduced in 

 cotton-waste (F. S. Collins). Aug.-Sept. Nat. from Trop. Am. 



A. Palmeri, Wats. 



Maiden, abundant in cotton-waste, 1886; appearing more spar- 

 ingly in 1887 (F. S. Collins). Sept. Adv. from the Southwest. 

 "Dioecious, rather stout, erect, 2 or 3 feet high, branching, some- 

 what pubescent above or glabrate ; leaves oblong-rhomboid, an 

 inch or two long and about equalling the petiole, the upper linear 



