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PRIMULACEAE (PRIMROSE FAMILY) 



V. pennsylvanicum, Low BLUEBERRY. Low shrubs, 2-6 dm. high, 

 the green warty stems and branches glabrous; leaves lanceolate or 

 oblong, serrulate with bristle-pointed teeth, bright green, smooth and 

 shining both sides; corolla cylindric bell-shaped; berries 

 usually bluish-black and glaucous. Dry ground. 



V. vacillans, BLUEBERRY. Low, 3-9 dm. high, glab- 

 rous, with yellowish branchlets; leaves obovate or oval, 

 very pale or dull, glaucous at least beneath, entire or 

 minutely serrulate ; calyx usually reddish ; corolla urn- 

 shaped, greenish-yellow, often tinged with red; berries 

 blue, with a bloom. Dry ground. 



V. corymbosum, SWAMP BLUEBERRY. Shrubs 1-4 m. 

 high ; leaves ovate to elliptic-lanceolate, entire, smooth 

 or somewhat pubescent beneath, half-grown at flower- 

 ing time; corolla urn-shaped, white or pinkish; berries 

 blue-black; with a bloom. Swamps and low woods. 



PKIMULACEAE (PRIMROSE FAMILY) 



Herbs, with simple leaves, regular flowers, stamens as many as 

 the lobes of the sympetalous corolla, and opposite them, and a 

 i-celled ovary with a central free placenta. 



LYSIMACHIA 



Leafy-stemmed perennials, with entire 

 and dotted leaves. Corolla wheel-shaped, 

 with entire divisions. Filaments mona- 

 delphous at base or distinct. 



L. thyrsiflora, TUFTED LOOSESTRIFE. 



Smooth, or pubescent above when young; 

 stem simple, becoming 8 dm. high; leaves 

 opposite, the lowest scale-like, the others 

 lanceolate; spike-like or head-like clusters 

 of small, light yellow flowers in the axils of 

 the middle leaves; corolla deeply 5-7 parted 

 into linear, purplish-dotted divisions; fila- 

 ments distinct. Swamps. May to July. 



Lysintachia thyrsiflora, 

 Tufted loosestrife. 



