136 FLORA OF PHILADELPHIA. 



Utricle indehiscent, membranous, coriaceous or fleshy. 



Upper flowers in terminal, more or less elongated spikes. 



6. A. Hvidus. 

 Flowers in small axillary clusters, shorter than the leaves. 



• 7. A. putnilus. 



1. Amaranthus retroflexus L. M. p. 378. Cultivated grounds. Autumn. 

 T 2. Amaranthus hybridus L. M. p. 378. Waste grounds. Autumn. 

 y 2a. Amaranthus hybridus paniculatus (L.) Uline & Bray. M. p. 378. 



Waste grounds. Autumn. 

 •X 3. Amaranthus spinosus L. M. p. 378. Waste grounds. Summer. 



4. Amaranthus blitoides S. Wats. M. p. 37,8. Waste places. Summer 



and fall. i 



Philadelphia— Ballast (P.). Budks— Quakertown (Fr.). 

 Camden— Kaighn 's Point (He.) (Wn.). Middlesex — New Brunswick 

 (He.). 

 New Castle— Fourth street below Claytonj Dupont. 



5. Amaranthus graecizaNS L. Tvmble-weed. M. p. 378. Waste grounds. 



Summer. 



6. Amaranthus lividus L. M. p. 379. Waste places. Summer. 



Philadelphia — Ballast (P.) . 



7. Amaranthus pumilus Baf. M. p. 379. Sea-beaches. Summer. 



Philadelphia— Ballast (P.). 

 Atlantic— Atlantic City (Pr.). 



2. ACNIDA L. 

 1. Acnida oannabina L. Water-hemp. M. p, 380. Salt or brackish 

 marshes. Summer. 



Family 3. PHYTOLAOCACEAE Lindl. Poke-weed Family. 



1. PHYTOLACCA L. 

 1. Phytolacca decandra L. Poke-weed. M. p. 381. Waste places, woods 

 and meadows. Summer. 



Family 4. NYOTAGINACEAE Lindl. Four-o'clock Family. 



Involucre of united bracts; pair of leaves equal. 1. Allionia. 



Involucre of separate bracts; pair of leaves mostly unequal. 2. Abronia. 



1. ALLIONIA Loefl. 



1. Allionia nyctaginea Michx. Umbrella-wort. M. p. 382. Introduced. 

 Summer. 

 Philadelphia— Wayne Junction P. & B. Bailroad. 

 M ercer— Near Lawrence Station (Br.). 



2. ABBONIA Juss. 

 1. Abronia micrantha (Torr.) Chois. M. p. 383. Introduced. Summer. 

 Cape May— Avalon (Ke.) (Le.). 



