92 FLOBA OF PHILADELPHIA. 



2. Eriocaulon Parkeei Robinson. M. p. 1052 ; 2d ed. Tidal river shores. 



Late summer. 

 Philadelphia— Andalusia (Br.), Torresdale (Wn.); ; 

 Camden — Camden, above Cooper's Creek (Br.). 



3. Eriocaulon compressum Lam. M. p. 237. Pine-barren swamps. Sum- 



mer. ';' ^ .''.'' 



New Jersey— Frequent. 



4. ERIOCAULON DECANGULARE L. M. p. 237. 



', Burlington— Quaker Bridge (Fr.), Atsion (He.) (Le.) (Te.).f Camden 



Atco (Gi.), Cedar Brook (Mac), Berlin (Te.). Cape May— Beesleys 



Point. Atlantic — May's Landing (He.) (Li.), Baker's Pond (Li.). 



' Ocean— Forked River (Cr.), Tuekerton (Sts.) (Te.), Manchester (Te.). 



Family 3. COMMELINACEAE Keichenb. Spiderwort Family. 



Perfect stamens 3, rarely 2; petals unequal; bracts spathe-like. 



l.< Commelina. 

 Perfect stamens 6, rarely 5; petals all alike; bracts leaf -like. 



i .-.- .i 2, Tradescantia. 



1.. COMMELINA L. pAY-yLOWER. 



Spathea not united at the base. 



Bpathesi acuminate;, capsules ,3-celled, 5-seeded. 1. C. nudi flora. 



Spath'es acute; capsules 2-celled, 4-seeded. 2., C. communis. 

 Spathes with united bases. 



All three cavities of the, ovary with, 2 ovules. , .„•■ .;/.?' 



Capsules 2-valve4, dorsal cavity indehiscent. 3. C. Virginica. 



•"' Capsules 3-valvedj' all cavities dehiscent. 4.C. erecia. 



Ventral cavities of the- ovary with 2 ovules, dorsal cavity with 'one 



ovule. ■ ■' ! ■ 5; C. hirtella. 



1. Commelina, numflora L- M.; p. 239. -i Alluvial banks and waste places. 



Summer. 

 , Philadelphia— Wissahickon (Cr.), Fairmount Park (Gi.). Delaware 

 — Tinicum, 2". C. Palmer (Fu.), Valley of Darby Creek (B., Sm.). 

 ^C hester — (P.). Northampton — Easton, Porter (B. C). Dauphin — 

 Steerton (Wn.). 



Burlington— TtAooreatown, Beverly (C). Camden— Merchantville (C), 

 Kaighns Point (Wn,). , Gloucester— Woodbury (C), Center Square near 

 Miekleton (He.), Swedegbpro (Li.). Salem— Penns ,G,rove (C). At- 

 lantic— Atlantic' City '(C), Absecon, Egg Harbor (Wn.). 



2. i Commelina communis L. M. p. 240. Waste places. Summer and 



autumn. « 



Bucks.— Sellersville, Tullytown (Fr.). Lancaster — (P.). Northamp- 

 ton— '(P.). Dauphin— Harrisburg (P.). 

 3; CommelinX' Virginica L. : M. p. 240. Moist soil. Summer. 



4. Commelina erecta L. M. p. 240. Moist Soil. Summer. 



Lancaster— Fe^ch Bottom (Ca,.). 

 Camden— Kaighns Point (C). 



5. Commelina hirtella Vahl. M. p. 240. Moist soil. Summer and 



autumn. 

 Lancaster— On the Susquehanna (P.). 



