ONAGBACEAE. 231 



Sm.). Lancaster— York Furnace (U. C. 8.). Berks— (P.). Northamp- 

 ton— (P.) . Dauphin— (P.) . 

 New Jersey— Common. 



3. LYTHRUM L. Loosestrife. 



Flowers axillary, solitary; stamens not more numerous than the petals. 



Leaves obtuse; stamens all included; annual. 1. L. Syssopifolia. 



Leaves acute; stamens of short-styled flowers exserted; perennial. 



2. L.alatum. 

 Flowers in panicled spikes, terminal; stamens twice as many as the petals, 



3. L. Salicaria. 



1. Ltthrum Hyssopifolia L. M. p. 649. Borders of salt marshes. 



Summer. 

 Bucks — Plumstead (Fr.). 



2. Ltthrum alatum Purih. M'. p. 650. Low grounds. Summer. 



Delaware— Hay Island (B. Sm.), Tinicum ("VP.). 



Gloucest er— Williamstown (He.). M ercer— Pennington (O.j. 



3. Ltthrum Salicaria L. M. p. 650. Wet meadows. Summer. 



Philadelphia — Cobb's Creek and Haverford Eoad (Mac). Bucks — 

 Narrowsville (Ja.). 



Chester— Near "West Chester (Fu.). Northampton— (P.). 



Camden— Camden (He.), Kaighn's Point (Te.) (Wn.). Gloucester— 

 Swedesboro (Li.). Atlantic— Egg Harbor (Sts.). Hunterdon— Tumble 

 Station and Bull Island (C). 



New Cast le— River shore, Canby. 



4. PAESONSIA P. Br. 

 1. Parsonsia petiolata (L.) Busby. Clammy Cuphea. M. p. 650. Dry 

 soil. Summer and fall. 



Family 2. MELASTOMAOEAE R. Br. Meadow-beauty Family. 



1. RHEXIA L. Meadow-beauty. 



Stem cylindrie, very pubescent. 1. B. Mariana. 



Stem square or angled. 



Stem more or less pubescent ; leaves ovate. 2. B. Virginioa. 



Stem glabrous. 3. B. aristosa. 



1. Rhexia Mariana L. M. p. 651. Swamps. Summer. 



Bucks— Bristol, Mart. (B. C), Penn Valley, (Wn,), 



New Jersey— Common. 



New Castle— Thompson's, Moore's, etc. Frequent. 



2. Rhexia Virginioa h'.' Deer Grass. M. p. 651. Sandy swamps. Sum- 



mer. 



3. Rhexia aristosa Britton. M. p. 651. Sandy swamps. Summer. 



'''■ Cape May— Woodbine (Br.), (Tape May (St.). Atlantic— Egg Harbor. 



Family 3. ONAGRACEAE Dumort. Evening-primrose Family. 



Floral whorls of 4 parts or more. 



Fruit a many-seeded capsule, opening- by valves or a pt>re. 

 Calyx-tube not prolonged beyond the ovary. 



