EBICACEAE. 247 



2. RHODODENDRON L, 

 1. Rhododendron maximum L. Great Laurel. M. p. 699. Woods and 

 along streams. Early summer. 

 Bucks— Point Pleasant (Fr.), Center Bridge and northward (Ws.). 

 Montgomery— Above Norristown on the west bank of the Schuylkill ( Wn.) . 

 Chester— Yalley Forge (Je.). Lancaster— 'Banks of Susquehanna (W. 

 Tr.). JBerfcs— Hamburg. Lehigh— Blue and Lehigh Mountains (Kr.). 



Burlington— Florence, Kinkora (C), Bordentown (Wn.). Camden— 

 Sicklersville (Cr.) (Ke.). (Sowerset— Mountainville (C). Hunterdon — 

 High Bridge (C). 



3. DENDRIUM Desv. 

 1. Dendrium buxifolium (Berg.) Desv. Sand Myrtle. M. p. 700. Sandy 

 pine-barrens. Spring. 

 New Jersey — Frequent. 



4. KALMIA L. 



Leaves oblong, mostly obtuse; flowers 6-10 mm. broad. 1. K. angustifolia. 

 Leaves elliptic or oval, acute; flowers 16-25 mm. broad. 2. K. latifolia. 



1. Kalmia angustifolia L. Sheep Laurel, Lambkill. M. p. 701. Moist 



soil. Early summer. 



2. Kalmia latifolia L. Calico-bush, Mountain Laurel. M. p. 701. Woods. 



Spring. 



5. LEUCOTHOE D. Don. 



1, Leucothoe raoemosa (L.) a. Gray. M. p. 703. Moist thickets. Spring. 



Philadelphia— Byherry, Mart. (B. C). Bucks— Hidge Road, Bristol 



(Fr.). Montgomery — Shannonville (Cr.). Delaware — Tinicum, Cobb 's 



Creek near Sellers' Mills (Te.), Kellyville (Wn.). Lancaster— Smith- 



ville (Ca.). 



New Jersey — Common. 

 New Castle — Frequent. 



6. PIERIS D. Don. 



1. PiERis Mariana (L.) Benth. & Hook. Stagger-bush. M. p. 704. Sandy 

 soil. Spring. 

 Philadelphia — Byberry, Mart. (B. C), Wissahickon (Me.), Shawmont 

 (Sa.), Angora (W. Tr.). Bucks — Bristol (P.), Buckingham Valley 

 (Ws.). Montgomery— B.oslyn (Pr.), Edge Hill (Re.), Willow Grove (U. 

 C. S.). Peioware— Tinicum (Fu.) (B. Sm.), Lansdowne (Pe.), Kelly- 

 ville (Te.), Folsom (Ws.). Chester— {P.). Lancaster— (P.). 

 New Jersey — Common. 

 New Castle — General and frequent. 



7. XOLISMA Raf. 



1. XOLiSMA ligustrina (L.) Britton. M. p. 704. Wet grounds. Early 

 summer. 



8. CHAMAEDAPHNE Moench. 

 1. Chamaedaphne calyculata (L.) Moench. Leather-leaf. M. p. 705. 

 Bogs. Spring. 



