

V acciniaceae 299 
FF. Leaves obtuse at both ends. Ee 
_ A. obtusifolia Pip. 
EE.  Bracts shorter than the pedicels. U. 
A. manzanita Par. 
DD. Leaves whitish-green; pedicels glandular or pubescent; twigs not glandular, 
glabrous or short hairy. U. (A. parvifolia; A. pulchella. ) 
A. viscida Par. . 
CC. Ovary hairy at the top; leaves glabrous, whitish-green; twigs ashy-gray; pedi- 
cels minutely hairy, longer than the bracts. U. (A. oblongifolia.) 
A. cinerea How. 
CCC. Ovary densely pubescent or tomentose; leaves somewhat tomentose especially 
when young; pedicels glandular or hairy. W.C. (A. intricata; A. strigosa; A. 
bracteata.) A. tomentosa, Dougl. 
VACCINIACEAE Huckleberry Family 
Shrubs (ours) or small trees, erect or trailing. Leaves alternate, simple, evergreen 
or deciduous. Flowers small, white or pink, perfect, in clusters or solitary. Calyx. 4—25- 
lobed or -cleft or -divided. Corolla 4—5-lobed, or rarely of separate petals. Stamens 
twice as many as the calyx-lobes; epigynous or on the base of the corolla; anthers often 
awned, opening by pores. Ovary inferior, 2—10-celled, placentae central; style filiform; 
stigma simple or minutely 4—5-lobed. Fruit (in ours) a berry. Seeds 2 to many, flat- 
tish. ) 
A. Corolla-segments less than half as long as the tube; plants erect or trailing, usually not 
in peat bogs, deciduous or evergreen, berry red or black or blue. VACCINIUM (p. 299) 
AA.  Corolla-segments distinct nearly or quite to the base; plants trailing, in peat bogs 
only, evergreen, berry red. Oxycoccus (p. 300) 
VACCINIUM HUCKLEBERRY 
Leaves deciduous or evergreen. Flowers in racemes or clusters, rarely solitary in 
the leaf-axils. Calyx-persistent; tube globose to turbinate, not angled. Corolla urn- 
shaped to cylindric or campanulate. Ovary 4—5-celled or by false partitions 8—10- 
celled. Berry red or black. Seeds many. (L. vacca—a cow; perhaps because they 
are often pasture plants. ) 
A. Leaves deciduous; filaments glabrous: anthers 2-awned. 
B. Flowers solitary; corolla 5-lobed; calyx entire to 5-cleft; leaves often not entire; 
twigs often angled. ; 
‘€. Twigs terete; plants dwarf, caespitose, less than 5 dm. high; leaves mostly 
serrate. 
D. Leaves bright green on both sides, rather thin; corolla ovate or oblong. 
W.C.E. (V. arbuscula; V. caespitosum cuneifolium.) 
V. caespitosum Michx. (Dwarf Bilberry) 
DD. Leaves pale and glaucescent, thicker; corolla globose. W. C. 
V. deliciosum Pip. (Sweet Bilberry ) 
CC. Twigs slightly to sharply angled; plants 10—20 dm. high when twigs are 
only slightly angled. 
Leaves serrate or serrulate; plants |—15 dm. high. 
F. Leaves 4—8 mm. long; berries red; plant |—4.5 dm. high. C. E. (V. 
microphyllum.) V. scoparium Lethe 
FF. Leaves |2—16 mm. long; berries black; plant 1—3 dm. high. E. 
(V. myrtillus for our region.) 
V. oreophilum Rydb. 
