294 



Ericaceae. 



Gaylussacia. Huckleberry. 

 (Family Ericaceae). 



Shrubs: deciduous, or evergreen 

 occasionally or in the South. 

 Twigs slender, roundish: pith 

 small, 3-sided or rounded, continu- 

 ous. Buds solitary, sessile, ovoid, 

 small, with 2 or some 4 or 5 ex- 

 posed scales, the end-bud lacking. 

 Leaf-scars alternate, low, crescent- 

 shaped or 3-sided: bundle-trace 1: 

 stipule scars lacking. 

 Winter-characters of Gaylus- 

 dumasa are pictured by 

 Schneider, f. 126. 



The deciduous species of Gay- 

 lussacia and Vacciriium are not 

 readily placed in the proper 

 genus in winter, even though they 

 may be told apart with some as- 

 surance. In this respect the 

 genera resemble the group re- 

 ferred to under ZenoMa. Because 

 of their inferior ovary, these two genera and Chiogenes are 

 believed by some botanists to constitute a family Vacciniaceae, 

 distinct from the Ericaceae. 



1. Evergreen: leaves serrulate. (1). G. brachycera. 

 Deciduous, or the leaves entire and glandular- 

 dotted if present. 2. 



2. Glabrous: shoots glaucous. (Dangleberry), 

 Twigs more or less pubescent. 3. 



3. Buds with 2 or 3 exposed scales. (Black h.). 

 Buds with 4 or 5 exposed scales. 4. 



4. Twigs puberulent but not villous. (Dwarf h.) . 

 Twigs also with long glandular hairs. 



(2).G. frondosa. 



(3). G. baccata. 



, (4). G. dumosa. 

 (5). G. hirtella. 



