ERICACEAE 223 



rocky woods and thickets from Massachusetts west to Illinois 

 and south to Florida and Texas. In Illinois, it is very limited 

 in distribution and grows only on rocky bluffs and hillsides 

 of the Ozarks in Union County, from Wolf Lake northward 

 to the Big ]\Iuddy River in the vicinity of Aldridge. 



ANDROMEDA Linnaeus 

 The Bog-Rosemaries 



The bog-rosemaries are glabrous, evergreen shrubs with 

 leathery, entire-margined, revolute leaves and with perfect 

 flowers borne in terminal umbels. The 5 sepals are persistent, 

 and the 5-toothed, globular corolla incloses the 10 stamens, 

 the filaments of which are bearded. The ovary is 5-celled and 

 is capped by a column-like style. The capsule is subglobose to 

 5-angled and opens by means of 5 valves to free the mam' 

 leathery, shining seeds. 



Two species of bog-rosemaries are recognized. One of them 

 grows naturally in the far northwest and the other occurs in 

 northeastern North America. 



ANDROMEDA GLAUCOPHYLLA Link 

 Downy Bog-Rosemary 



The Downy Bog-Rosemary, fig. 58, is a low shrub that sends 

 up ascending branches 4 to 10 inches long from a smooth, creep- 

 ing stem. The thick leaves are linear to lanceolate-oblong, ^ 

 to 21/ inches long by less than 1/ inch wide, sessile or with a 

 very short petiole, abruptly acute and tipped at the apex, and 

 long-tapered to the base. The margins are entire and revolute, 

 and the blades are smooth and dark green above, and whitened 

 with fine hair beneath. 



The white or pink, 5-petaled flowers, which appear from 

 early in May on through June, are borne, usually 5 to 10 

 together, in clusters at the end of branchlets, each on a re- 

 curving pedicel, which is as a rule about twice as long as the 

 flower or fruit. The fruit is a 5-celled capsule, which is much 

 flattened at the apex and opens by 5 valves to set loose the 

 many shining, light brown seeds. 



DiSTRiBUTiox. — The Downy Bog-Rosemary is a shrub which 

 grows in the peat and sphagnum of tamarack bogs, in which it 



