I'^i3 , Bulletin 145 



mayflower hunter, while others look more like the winterg-reen. 

 Very similar to the heath and closely related thereunto is the little 

 diapensia, whose dainty dark green cushions dotted with large 

 white blossoms is reward enough for any flower lover who may 

 venture to visit the alpine peak of Mt. Mansfield during the last 

 of May. 



KEY TO THE GENERA OE SHRUBBY HEATHS. 



1. Fruit a berry or berry-like 2. 



1. Fruit a dry capsule 5. 



2. Calyx below the ovary, leaves evergreen Bearberry 



2. Calyx borne upon or inclosing the ovary and appearing as teeth 



crowning the edible berry 3. 



3. Berries white; leaves evergreen Snowberry. 



3. Berries blue or black; leaves deciduous. 



Blueberries and huckleberries. 



3. Berries red ; leaves evergreen 4. 



4. Berries tart, 4-celled, crowned by 4 small calyx teeth, leaves less 



than % inch long Cranberries 



4. Berries spicy-aromatic, 5-celled and surrounded by 5 conspicuous 



calyx lobes, leaves 1 inch or more in length. .. .Wintergreen. 



5. Flowers small, less than ^4 inch wide, petals united into an urn- 



shaped or cylindrical tube with contracted mouth 6. 



5. Flower larger, % to 2 inches wide, open and spreading above. . . .8. 



6. Flowers % inch in diameter nearly globular Male berry. 



6. Flowers larger and more elongated 7. 



7. Leaves white beneath with margins rolled back.... Wild rosemary. 



7. Leaves scurfy both sides, not white beneath, tlat. .. .Leather leaf. 



8. Flowers without tube and much broader than long (saucer or 



wheel-shaped ) 9. 



8. Flowers tubular or contracted below, spreading above, (salver, 



funnel or bell-shaped) 10- 



9. Petals nearly or quite distinct, leaves coated underneath with 



woolly hairs Labrador tea. 



9. Petals united, leaves smooth Laurels. 



10. Small trailing plant Trailing arbutus. 



10. Erect shrubs The rhododendrons. 



