710 FLORA. 



4. Vaccinium ovalifolium J. E. Smith. Tall or Oval-leaved Bilberry. 

 (I. F. f. 2786.) A straggling shrub, 9-36 dm. high; twigs glabrous, sharply angled. 

 Leaves short-petioled, glabrous, green above, glaucous beneath, rounded at both 

 ends, or somewhat narrowed at the base, thin, sometimes mucronulate, 2.5-5 cm ° 

 long; flowers on rather short recurved pedicels; corolla glolx>se-ovoid; berry 8-10 

 mm. in diameter. Woods, Quebec to Mich., Ore. and Alaska. June-July. 



5. Vaccinium virgatum Ait. Southern Black Huckleberry. (I. F. f. 

 2787.) A shrub, 9-36 dm. high, the branches slender, the young twigs puberu- 

 lent. Leaves narrowly oval-oblong, broadest at the middle, mucronate, short- 

 petioled, entire, green and glabrous above, pale or glaucous beneath, thick when 

 old, 2.5-6.5 cm. long, 12-25 mm. wide, veins pubescent; flowers equalling 01 

 longer than their pedicels; calyx 5-lobed; corolla 6-8 mm. long, 2-3 mm. thick, 

 white or light pink; stamens 10; berry with or without bloom, 4-6 mm. in diam- 

 eter. In swamps, Va. to Fla. and La. April-May. 



Vaccinium virgatum tendllum (Ait.) A. Gray. Low, mostly less than 6 dm. high; 

 leaves smaller, narrower, 12-35 mm. long; flowers white, or nearly so, 4-6 mm. long. 

 Va. to Ark., Fla. and Ala. 



6. Vaccinium corymbosum L. High-bush or Tall Blueberry. (I. F. 

 f. 2788.) A shrub, 2-4.5 m * high; twigs terete, greenish brown. Leaves oval or 

 oblong, mostly acute at each end, usually entire, sometimes ciliate, glabrous above, 

 paler and often pubescent beneath, short-petioled, 2.5-7.5 cm. long, 12-35 mm - 

 wide; flowers equalling or longer than their pedicels; bracts deciduous; calyx 5- 

 lobed ; corolla white or faintly pink, 6-12 mm. long, 3-6 mm. thick, 5-toothed 

 (rarely 5-lobed); stamens 10; berry 6-8 mm. in diameter, pleasantly acid. In 

 swamps, thickets and woods, Newf. to Va., Minn, and La. May -June. 



7. Vaccinium atrococcum (A. Gray) Heller. Black Blueberry. (I. F. f. 

 2789.) Similar to the two preceding; branches minutely warty, young twigs 

 pubescent. Leaves dark green above, light green beneath, usually acute at both 

 ends, mucronate, thick, 3.5-7.5 cm. long, 12-35 mm - w i^ e ; flowers appearing with 

 the leaves, about the length of their pedicels; calyx 5-lobed; corolla short-cylindric 

 or ovoid, pink or red, 4-6 mm. long, about 3 mm. thick, 5-toothed, constricted at 

 throat; berry without bloom, sweet, 6-10 mm. in diameter. In swamps and wet 

 woods, N. B. and Ont. to N. J. and Penn. May-June. 



8. Vaccinium Canadense Richards. Canada Blueberry. (I. F. f. 2790.) 

 Pubescent. Leaves acute, narrowed at the base, 2.5-3.5 cm - l° n g» 8-12 mm wide; 

 flowers few in the clusters, which are sometimes numerous on naked branches, 

 appearing with the leaves; corolla oblong- campanulate, greenish white, about 4 mm. 

 long and 3 mm. thick; berry with a bloom (rarely white), sweet, 5-6 mm. in diam- 

 eter. In moist places, Lab. to the N. W. Terr., Va., 111. and Mich. May-June. 



9. Vaccinium Pennsylvanicum Lam. Dwarf, Sugar or Low-bush Blue- 

 berry. (I. F. f. 2791.) Similar to the preceding species, but with green warty 

 branches and nearly or quite glabrous throughout. Leaves oblong or oblong- 

 lanceolate, slightly pubescent on the veins beneath, acute at both ends, 1.8-3.6 cm. 

 long, 6-12 mm. wide; flowers few in the clusters, longer than the very short pedi- 

 eels; corolla oblong-campanulate, slightly constricted at the throat. 4-5 mm. long, 

 about 3 mm. thick, white or pinkish; berry with a bloom, very sweet, 6-10 mm. 

 in diameter. In dry, rocky or sandy soil, Newf. to the N. W. Terr., N. J., 111. and 

 Mich. May June. 



Vaccinium Pennsylvanicum angustif61ium (Ait.) A. Gray. Leaves narrower, 2-3 

 mm. wide. Mts. of Me., N. H.and Adirondacks; Quebec to Lake Superior and arctic Am. 



10. Vaccinium nigrum (Wood) Britton. Low Black Blueberry. (I. F. f. 

 2792.) Similar to V. IVmisv/raiiictwi and often growing with it, the twigs gla- 

 brous. Leaves acute, finely serrulate, very nearly sessile, 12 25 mm. long. 6 12 

 mm. wide green above; Bowers few in the clusters, longer than their pedicels; 

 Corolla globose-OVOid, little constricted ,tt the throat, white or cream color, about 4 

 mm. long, 3 mm. thick; berry without bloom, about 6 mm. in diameter. In dry 

 rocky soil. Me. to N. J.. Penn. and Mich. Blooms earlier than V. Pennsyha. 

 nicutn. May. 



11. Vaccinium vacillans K.ilm. Low BLUEBERRY. Blue HUCKLEBERRY. 

 (1. F. 1. 2793.) A stiff shrub, 1.5 [2 dm. high) With glabrous yellowish-green warty 



