HORTICULTURAL STATUS OF TJIK GENUS VACCINIUM. 137 



EE. Surface of the leaves hairy. 



F. Ovary and fruit glaucous. 



Canadenae 

 FF. Ovary aud fruit hirsute. 



hirsutnm 

 CC. Plaut taller (3—12 feet), spreading. 

 D. Flowers solitary in axils. 



E. Leaves sharply serrate . . myrtilloides 

 EE. Leaves entire or slightly serrulate 



ovalifolium 



DD. Flowers in racemes or corymbs. 



E. Racemes elongated on naked 



branches virgatmn 



EE. Racemes shorter corymbosum 



AA. Cultivated chiefly for ornament. 

 B. Plants low, 1 — 2 feet high. 



C. Stems creeping, with branches erect or as- 

 cending. 



D. Leaves small, shining crassijolivm 



DD. Leaves larger, pale or glaucescent. 



uliginosum 



CC. Stems erect ; twigs red erythrinum 



BB. Plants taller, 2-20 feet high. 



C. Foliage evergreen, rigid ovation 



CC. Foliage deciduous. 



D. Surface shining above, more or less 



pubescent beneath a.rboreum 



DD. Surface paler above, glaucous beneath. 



stamineum 

 DDD. Surface bright green both sides. 



erythrocaiyon 



THE MOST IMPORTANT SPECIES. 



V» Oxycoccus, L. (Small Cranberry) 



Linmeus, Sp. PI. 351, 1753. 



{Synonyms: Oxycoccus palustris, Pers., Syn. PL 1:419; 

 Oxycoccus vulgaris, Pursh. Fl. 1 : 263.) 



Slender creeping plants with short (4-10 inch) filiform stems, 

 leaves ovate, acute or acuminate. *4 inch long, with revolute 



