93. Ericaceae 177 



1. Flowers several; plants pubescent, tawny or reddish; style longer 

 than the ovaiy, pubescent ; saprophytic on humus in woods, 

 rare; Coles, Cook, Cuniberland, Jackson, Kankakee, and Piatt 

 counties. June-Aug. [M. Iiypopitys sensu A.Gray, non L.]. 

 Pinesap M. lanuginosa Michx. 



4. Rhododendron L. 



{Azalea L.) 



R. roseum (Loisel.) Rehd. Rocky woods, rare; Alexander and 

 Union counties. May. [A. nudiflora sensu auth., non L.; R. canescens 

 sensu auth., non Sweet: A. prionophylla SniallJ. 



5. Andromeda L. 



A. glaucophylla Link. Bog-rosemary. Bogs, rare; Lake and Mc- 

 Ilenry counties. May-Jime. 



6. Chamaedaphne Moench — Leatherleaf 

 C. calyculata (L. ) Moench. Swamps and bogs; Cook and Lake 

 counties. May. 



7. Epigaea L. — Trailing Arbutus 

 E. re pens L. "Illinois," without definite locality, ]'asey. Now ex- 

 tinct in Illinois. 



8. Gaultheria L. — Creeping Wintergreen 

 G. procumbens L. Checkerberry. Woods, rare; Cook, Lake, La 

 Salle, and Ogle coimties. June-Aug. 



9. Arctostaphylos Adans. 

 A. uva-ursi (L.) Spreng. Kinnikinnick. Woods and dunes, local; 

 known from Cook, Lake, Ogle, Peoria, and Winnebago counties. May- 

 June. 



10. Gaylussacia HBK. 

 G. baccata (Wang.) K.Koch. Black Huckleberry. Rocky woods 

 and hillsides in northern 111. May-June. 



1 1 . Vacchiium L. 



1. Shrubs mostly 2-lU m tall. 



2. Leaves glossy above, coriaceous at maturity, the margins entire, 

 usually bearing a few small glands toward the base: anthers 

 2-awned; berries black, inedible; open woods in southern 111. 



May-June. Farkleberr^- L. arboreum Marsh. 



2. Leaves not glossy, entire or ciliolate-serrulate, acute; anthers 

 awnless; berries glaucous; swamps and bogs; known from 

 Cook, McHenry, and Winnebago counties. May-June. High- 

 bush Blueberry V . corymbosum L. 



1. Low shrubs usually less than 1 m tall. 



