74 ERICACE^. 



10. RHODODENDRON, Linnaeus. 



Deciduous: flowers from lateral buds, nodding; corolla nearly rotate 1 



flowers from terminal buds; tube funnel-form; limb spreading „. 2 



Evergreen: many-flowered corymbs terminal: corolla campanulate, lobes broad 3 



1. Br. albiflorum, Hooker. Low: corolla white, 5-cleft: ^amens included. 



2. R. occidentale, Gr. Taller: corolla white, viscid; stamens exserted. 



3. R. Califoruicum, Hooker. Leaves 3 to 6 inches long: corolla rose-purple. 



11. LEDUM, Linnaeus. 



1. li. latifolium, Ait. Leaves rusty-tomentose below, margins strongly revolute. 



2. Xi. glandulosum, Nutt. Leaves whitish beneath, resinous, scarcely revolute. 



12. CLADOTHAMNUS, Bongard. 



1. 0. pyrolseflorus. Bong. Tall, slend^, smooth: sepals equaling the petals. 



13. CHIMAPHILA, Pursh. 

 L C. Menziesii, Spreng. Leaves often mottled above: peduncle 1-3-flowered. 



2. 0. \uiibellata, Nutt. Taller (1 or 2 ft. high) leaves not spotted: flowers 4 to 8. 



14. MONESES, Salisbury. 



1. M. uniflora, Gr. Corolla white or rose-tinged, ^-f in. broad. Cold bogs. 



15. PYROLA, Tournefort. 



Stamens connivent about the straight style, not declined: stigma peltate 1, 2 



Stamens and style bending downward then upward: style exserted. 



Corolla greenish white: calyx-lobes short 3, 4, 6 



Corolla rose-purple or purplish: scaly bracts large 5 



Leaves sometimes veined or splotched with white 5, 6 



Leaves wanting: scapes reddish: petals obovate, white 7 



1. P. minor, L, Leaves orbicular, an inch long or less: style short, 



2. P. sectmda, L. Leaves ovate, 1 to 2 inches long: petals oblong: style long. 



3. P. chlorantha, Swartz. Leaves orbicular, 5 to 8 lines long: sepals obtuse. 



4. P. elllptica, Nutt. Leaves 1 J to 2J inches long, longer than the petioles. 



5. P. rotundifolia, L. Leaves orbicular or nearly so, shining above. Only the 

 var. bracteata, Gr,, found on this coast, which often has large white-banded leaves. 



6. P. picta. Smith. Leaves broadly ovate to narrow or spatulate, coriaceous. 



7. P. aphylla. Smith, Scapes a span to a foot high: bracts subulate, 



16, ALLOTROPA, Torrey & Gray. 

 1. A. virgata, T. & G. Thick and densely bracteate at base, ending in a long s^ke. 



