KEY, 183 



433. A tree, shrubs, or shrublets 424 



Leafless scaly-bracted herbs 433 



434. Corolla saucer-foiin, holdiDg the anthers in 10 

 pouches. Leaves alternate, opposite, or in threes, oblong to 

 lanceolate. Shrubs, 1-8 feet high. Flowers scattered, or in 

 simple, or clustered umbel-like corymbs, rose-color, crimson, 

 or lilac purple, often very showy. Kalmia. 



Corolla without pouches 425 



43^. Corolla salver-forra, hairy inside. Calyx with 3 

 bractlets at the base. Anthers opening lengthwise. Trail- 

 ing shrublet, bristly with rusty hairs. Leaves rounded, or 

 heart-shaped, reticulated, alternate, long-petioled. Flowers 

 rose-color, in small, axillary clusters, fragrant. 



Epigsea repens, L. 



Corolla of another shape. Anthers opening by 



terminal pores or chinks 426 



436. Corolla bell-shaped, slightly unequal, or regular; 

 its lobes large and spreading. Calyx minute. Stamens ex- 

 serted, commonly declined. Pod 5-celled, 5-valved. Flowers 

 large, sliowy, rose-color, or lilac-purple, in dense, terminal, 

 umbel-like corymbs, from scaly buds. Low trees, shrubs, or 

 dwai-fish shrublets. (Pods opening septicidally.) 



Rhododendron. 



Flowers smaller. Corolla urn-shaped (ovoid, cylin- 



dric, or globular) ; lobes small, equal 427 



437. Pod opening loculicidally— that is, into the cells, so 

 that the valves, after dehiscence, bear the partition on their 

 middle 428 



Pod opening septicidally— that is, between the cells, 

 so that the valves bear half the thickness of the partition on 

 their margins. Flowers purple 432 



438. Leaves needle-shaped, imbricated. A moss-like, 

 procumbent shrublet. Stems filiform, 1-4 inches long. 

 Corolla globular. Anthers with 2 recurved awns. Flowers 

 wdiite or rose-color, solitary, on slender erect peduncles. 



Cassiope hypnoides, Don. 

 Leaves ample 429 



439. A fine tree, 40-50 feet high. Leaves deciduous, 



