VACCINIACEAE 241 



Corolla open campanulate. 2. Polycodium. 



Corolla globular, ovoid or urn-shaped to cylindric. 3. Vaccinium. 

 Creeping shrubby plants : ovary half inferior : berries white. 



4. Chiogenes. 

 B. Petals distinct. 5. OxYCOCCUS. 



1. GAYLUSSACIA H.B.K. 



Leaves deciduous ; blades relatively thin, entire. 

 Corolla conic : leaves sticky with a resinous secretion. i. G. resinosa. 

 Corolla campanulate to globose-campanulate : leaves not sticky. 



Drupe with a bloom : leaf-blades pale beneath. 2. G.frondosa. 



Drupe without a bloom : leaf-blades not pale beneath. 3. G. dumosa. 



Leaves persistent ; blades leathery, serrate. 4. G. brachycera. 



1. Gaylussacia resinosa (Ait.) T. & G. Black or High-bush 

 Huckleberry. (Man. p. 707 ; I. F. /. 2jSo.) In woods and thickets. 

 Newf. to Ga., Man., Wis. and Ky. — Pennsylvania: Monroe; Pike ; 

 Lebanon ; Bucks ; Northampton ; Montgomery ; Delaware ; 

 Chester ; Lancaster ; Franklin ; Huntingdon ; Somerset ; Alle- 

 gheny. 



la. G. resinosa leucocarpa Porter. Monroe ; Huntingdon. 



2. Gaylussacia frondosa (L- ) T. & G. BLUE Tangle. TanglE- 

 BERRY. (Man. p. 707; I. F. /. 2jjg.) In moist woods, N. H. to Fla., 

 Ohio and La. — Pemisylvania : Monroe ; Pike ; Lackawanna ; Carbon ; 

 Schuylkill ; Northampton ; Montgomery ; Delaware ; Lancas- 

 ter ; Chester ; Lebanon. 



3. Gaylussacia dumosa (Andr. ) T. & G. Dwarf or Bush Huckle- 

 berry. (Man. p. 70S ; I. F./. 2/81.) In sandy swamps, Newf. to N. 

 Y., Fla. and La. — Pennsylvania: Lancaster; Chester; Montgom- 

 ery. 



4. Gaylussacia brachycera (Michx. ) A. Gray. Box-Huckleberry. 

 (Man. p. 708 ; 1. F./. 2^82.) In dry woods, Pa. to Va. — Pennsylvania : 

 Perry, near Bloomfield. 



2. VACCINIUM L. 



Corolla cylindric or nearly so, twice or thrice longer than thick. 



I. V. cotymbosum. 

 Corolla urn-shaped, oblong or cylindric-oblong, once or twice as long as thick. 

 Leaf-blades not glaucous beneath. 

 Leaf-blades entire or essentially so, pubescent beneath. 



Drupe without bloom : leaf-blades of an oval type : shrub 10-50 dm. tall. 



2. V. atrococcum. 

 Drupe with bloom : leaf-blades of an oblong type : shrub 1.5-6 dm. tall. 



3. V. Canadense. 

 Leaf-blades manifestly serrulate, glabrous or nearly so. 



4. V. Pennsylvanicum. 

 Leaf-blades glaucous beneath. 



Drupe without bloom." 5. V. nigrum. 



Drupe with bloom. 6. V. vacillans. 



1. Vaccinium corymbosum L. High-bush or Tall Blueberry. 



(Man. p. 710; I. F. /. 2^88.) In swamps, thickets and low woods, 

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