240 VACCINIACEAE 



9. PIBRIS D. Don. 



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

 704 ; I. F. /. 2770.) In sandy soil, R. I. to Fla., Tenn. and Ark. — Penn- 

 sylvania : Bucks, Bristol ; Montgomerv ; Dei,aware ; Chester ; Lan- 

 caster. 



10. XOLISMA Raf. 



1. Xolisma ligustrina (L.) Britton. Privet Andromeda. (Man. 

 p. 704 ; I. P. y; 277^-) 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. CHAMAEDAFHNE Moench. 

 1. Chamaedaphneoalyculata (L.) Moench. LeaTHER-LEAF. (Man. 

 p. 705 ; I. F.y. 2772.) 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. /. 2773.') 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. 2774-) In sandy or rooky 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.y. 2775.) 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-tfrsi (L. ) Spreng. Red Bearberry. Kinni- 

 KlNic. (Man. p. 706; I. F. /. 277^.) 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. 



