240 VACCINIACEAE 



9. PIERIS D. Don. 



1. Pieris mariana (L.) Benth. & Hook. STAGGER- bush. (Man. p. 



704 ; I. F. y^ 2JJO.) In sandy soil, R. I. to Fla., Tenn. and Ark. — Penn- 

 sylvania : Bucks, Bristol ; Montgomery ; Delaware ; Chester ; Lan- 

 caster. 



10. XOLISMA Raf. 



1. Xolisma ligustiina (L.) Britton. Prtv^et Andromeda. (Man. 

 p. 704 ; I. F. y; ^■/ji.) In swamps and wet soil, Canada (?), Me. to N. 

 Y., Fla., Tenn. and Ark. — Pennsylvania : Pike ; Monroe ; Luzerne ; 

 Northampton ; Bucks ; Delaware ; Chester ; Montgomery ; Lan- 

 caster ; Franklin ; Huntingdon ; Fayette ; Allegheny. 



11. CHAMAEDAPHNE Moench. 

 1. Chamaedaphne calyculata ( L. ) Moench. Le.\ther-leaf. (Man. 

 p. 705 ; I. V.f. 2JJ2.) In bogs and swamps, Newf. to Alaska, N. J., Ga., 

 Ills., Mich, and B. C. Also in Eu. and Asia. — Pennsylvania : Pike ; 

 Monroe ; Lackawanna ; Centre ; Luzerne ; Tioga. 



12. OXYDENDRUM DC. 

 1. Oxydendrum arboreum (L. ) DC. Sour-wood. Sorrel-Tree. 

 (Man. p. 705 ; I. F. /. 2//j.) In woods, Ohio and Pa. to Va., Fla. and 

 Miss. — Pennsylvania : Fayette, Mt. Pleasant. 



13. EPIGAEA L. 

 1. Epigaea repens L. Trailing Arbutus. Mayflower. Ground 

 Laurel. (Man. p. 705; I. F. y. 2JJ4.) In sandy or rocky woods, 

 Newf. to the N. W. Terr., Fla., Ky. and Mich. — Pennsylvania: MON- 

 ROE ; Pike ; Northampton ; Bucks ; Delaware ; Chester ; Lan- 

 caster ; York ; Dauphin ; Franklin ; Bedford ; Huntingdon ; 

 Lebanon; Somerset; Allegheny. 



14. GAULTHERIA L. 

 I. Gaultheiia procumbens L. Creeping Wintergreen. (Man. p. 



705 ; I. F./. 2JJ5.) In woods, Newf. to Man., Ga. and Mich. — Pennsyl- 

 vania : Lackawanna ; Pike ; Monroe ; Northampton ; Bucks ; 

 Delaware ; Chester ; Lancaster ; Philadelphia ; Schuylkill ; 

 Columbia ; Luzerne ; Centre ; Franklin ; Huntingdon ; Erie ; 

 Allegheny. 



15. ARCTOSTAPHYLOS Adans. 

 1. Arctostaphylos Uva-Ursi (L. ) Spreng. Red Bearberry. Kinni- 

 KiNic. (Man. p. 706; I. F. /. 2jj6.') In dry, sandy or rocky soil, 

 Lab. to Alaska, N. J., Pa., 111., Neb., Colo, and Calif. Also in Eu. and 

 Asia. — Pennsylvania : Bucks ; Erie, Presque Isle ; Clinton. 



Family 5. VACCINIACEAE Lindl. Huckleberry Family. 



Ovary lo-celled : fruit a berry-like drupe with 10 nutlets. i. Gaylussacia. 

 Ovary 4-5-celled : fruit a many-seeded berry. 

 A. Petals more or less united. 

 Upright shrubs or trees : ovary wholly inferior : berries variously colored. 



