Vot. II.] 



HUCKLEBERRY FAMILY. 



579 



10. Vaccinium nigrum (Wood) Britton. 

 Low Black Blueberry. (Fig. 2792. ) 



Vaccinium Pennsylvanicum var. nigrum Wood, 



Bot. & Flor. 199. 1873. 

 V. nigrum Britton, Mem. Torr. Club, 5: 252. 1894. 



Similar to V. Pennsylvanicum and often grow- 

 ing with it, 6 / -i2 / high, the twigs glabrous. 

 Leaves oblong, oblanceolate or obovate, acute 

 at the apex, narrowed or rounded at the base, 

 finely serrulate, very nearly sessile, X /-I/ l n g> 

 3 // -6 // wide, glabrous on both sides, green above, 

 pale and glaucous beneath; flowers few in the 

 clusters, longer than their pedicels; corolla glo- 

 bose-ovoid, very little constricted at the throat, 

 white or cream color, about 2 /x long, \y 2 /f thick; 

 berry black, without bloom, about 3" in diameter. 



In dry rocky soil, Massachusetts to New Jersey, 

 Pennsylvania and Michigan. Blooms earlier than 

 V. Pennsylvanicum. May. Fruit ripe in July. 



ii. Vaccinium vacillans Kalm. Low Blueberry. 



(Fig. 2793.) 



Blue Huckleberry. 



12. Vaccinium pallidum Ait. Pale 



V. pallidum Ait. Hort. Kew. 2: 10. 1789. 

 Vaccinium corymbosum var. pallidum A. Gray, 

 Man. Ed. 5, 292. 1867. 



A branching shrub, 2-8 high, with gla- 

 brous green warty twigs. Leaves oval, ovate 

 or oblong, rather thin when mature, acute 

 or acuminate, narrowed or rounded at the 

 base, short-petioled, glabrous and light green 

 above, pale and slightly glaucous or some- 

 times pubescent on the veins beneath, serru- 

 late, i '-3' long; flowers several or numerous 

 in the clusters, about equalling their slender 

 pedicels; corolla oblong-cylindric to urceo- 

 late, slightly constricted at the throat, green- 

 ish-pink, 2 // -aX // long, i #"-2" thick; 

 berry blue, 4 // -6" in diameter, delicious. 



In woods, mountains of Virginia to South 

 Carolina. Fruit superior to all other blue- 

 berries. May-June. Berries ripe July-Aug. 



V. vacillans Kalm; Torr. Fl. N. Y. i: 444. 1843. 

 A stiff branching shrub, 6'-4 high, with 

 glabrous yellowish-green warty branches 

 and twigs. Leaves obovate, oval, or broadly 

 oblong, acute or obtuse and usually mucron- 

 ulate, narrowed or rounded at the base, firm, 

 glabrous on both sides, entire, or sparingly 

 serrulate, pale, glaucous and finely reticu- 

 late-veined beneath, i'-2>' long, %'-!%' 

 wide; flowers several or few in the clusters 

 which are sometimes racemose on naked 

 branches, longer than or equalling their 

 pedicels; corolla oblong-cylindric, somewhat 

 constricted at the throat, pink, 2 // ~3 // long, 

 I #"-2" thick; berry blue with a bloom, 

 sweet, 2"-3^ // in diameter. 



In dry soil, Maine (?) and New Hampshire to 

 Ontario and Michigan, south to North Carolina 

 and Missouri. May-June. Fruit ripe July-Aug. 



or Mountain Blueberry. (Fig. 2794.) 



