KRICACEiE. 71 



4. HETEROCODON. Nuttall. 

 L S. rariflomm, Natt. Stems tiliform: leaves orbicular, toothed, muQ. 



EUICACE^. 



Suborder I. VACCINTE-ffl. 

 Shmbt (some low and herbaceous): ovary inferior becoming an edible berry, 



Suborder II. ERICINE-ffi. 



Shrubs or trees: calyx free, usually small: corolla gamopetalous (except 11, 12). 

 • Fruit berry -like or fleshy: fiowers drooping: corolla ovoid to campanulate with small lohts: 

 etamena S or 10 incltided: bark shedding from at least the branches: leaves evergreen^ 

 coriaceous. 



Tree: flowers in large panicles: orange-red berries many seeded 3 



Shrubs: flowers in small racemes: fleshy fruit, 1-10 seeded 3 



Shrubs, low or prostrate: flowers axillary: berries black or red ►. 4 



•• Fruit, a dry, many -seeded capsule: flowers nodding: anthers aum-tipped. 



Shrub, 3 or 4 ft. high: oblong leaves 1 to 3 inches long 6 



Shrub, a foot high or less: small scale-like leaves in 4 ranks 6 



• * • Fruit a dry capsule, splitting between the cells: anthers not owned, 

 + CoroUa gamopetalous. 

 Low Alpine evergreen; leaves revolute: flowers umbellate or corymbose: 



Leaves linear, crowded corolla not pouched ,. . . • 7 



Leaves oblong, opposite; corolla 10-ribbed, from 10 depressed pouches 8 



Not alpine: leaves crowded at the ends of branches, entire. 



Corolla usually 4-toothed. ovoid to cylindric«l, dull purple,^. ^ ,.. .._..... 9 



Corolla usually 5-lobed, limb spreading, white to rose ^^ 10 



1 1 Corolla polypetalous or nearly so. 



Flowers in corj^mbs or umbels, erect, white, cherry -like 11 



Flowers solitary, nodding, reddish ....•- ^-.,.,. 12 



Suborder III. PYROLEiE. 



Perennials, herbaceous or slightly woody with smooth evergreen leaves (except one species 

 in No. 15): flowers nodding, polypetalous; petals broad: ovary superior: stamens 10: 

 anthers in bud extrorae, at length by inversion introrse with 2-homed base above. 



Flowers umbellate or solitary on a leafy woody stem 13 



Flowers solitary on a short scape: petals spreading 14 



Flowers in a raceme on a scape; petals concave, incurved 15 



