136 FLOBA OF PHILADELPHIA. 



Utricle indehiscent, membranous, coriaceoiia or fleshy. 



Upper flowers in terminal, more or less elongated spikes. 



6. A. Uvidus. 

 Flowers in small axillary clusters, shorter than the leaves. 



7. A. pvmiltis. 



1. Amakanthus RETR0F1.EXUS L. M. p. 378. Cultivated grounds. Autumn. 



2. Amabanthus hybridus L. M. p. 378. Waste grounds. Autumn. 



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

 Waste grounds. Autumn. 



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



4. Amaranthus blitoides S. Wats. M. p. 378. Waste places. Summer 



and fall. 

 Philadelphia— Ballast (P.). ^ucfcs— Quaker town (Fr.). 

 Camden— Ka,ighn 'a Point (He.) (Wn.). Middlesex— New Brunswick 



(He.). 

 New Castle— Fourth street below Clayton, Dupont. 



5. Amaranthus graecizans L. Twnhle-weed. M. p. 378. Waste grounds. 



Summer. 



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



Philadelphia— BaMa^&t (P.). 



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



Philadelphia— BaXiaEt (P.). 

 Atlantic— Ktlautic City (Pr.). 



2. ACNIDA L. 

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

 marshes. Summer. 



Family 3. PHYTOLACCACEAE Lindl. Poke-weed FamUy. 



1. PHYTOLACCA L. 

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

 and meadows. Summer. 



Family 4. NYCT AGIN ACE AE 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. & R. Railroad. 

 Mercer — Near Lawrence Station (Br.). 



2. ABRONIA Jusa. 

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

 Cape May— AYslon (Ke.) (Le.). 



