124 KEY AND FLORA 



h. R. occidenta'le Gray. Azalea. Shrub with bright-green decid- 

 uous leaves. Flowers large, fragrant, appearing after the leaves, in 

 numerous umbels. Corolla viscid, white or rose-color, the upper 

 lobes blotched with yellow within. Stamens and styles very long. 

 This is found along streams in both the Coast and Sierra Nevada 

 Mountains. 



VI. LE'DUM, Labrador Tea 



Shrub ivith alternate, eiwrgreen leaves more or less covered 

 luith resinous dots. Flowers white, in corymbs or umbels. 

 Calyx 5-lobed, small. Corolla of 5 obovate, widely spread- 

 ing petals. Stamens 5-10, as long as the petals. Pod 

 5-celled, with 5 valves opening from the base upwards. 



a. L. glandulo'sum Nutt. Leaves smooth on both sides, but paler 

 and more glandular beneath. Flower clusters often crowded, terminal 

 or axillary. This is common at high elevations in the Sierra Nevada 

 and on the coast from northern California to British Columbia. 



b. L. latifolium Ait. Leaves densely white-woolly beneath, becoming 

 brownish, margins with the edges turned back, oblong, obtuse, 1-2 in. 

 long, ^ in. wide. Flower clusters all terminal. Northern Cali- 

 fornia to British Columbia. 



VII. CHIMAPH'ILA, Prince's Pine 



Herbs with low stems from slender rootstocks. Leaves 

 evergreen, alternate or sometimes opposite, toothed. Flowers 

 few, fragrant, waxy-looking, in terminal corymbs. Petals 5, 

 widely spreading, regular, orbicular, concave. Stamens 10, 

 on short filaments which are dilated and hairy in the middle. 

 Stigma rou7id-shield-shaped, concealing the short style, 5-rayed. 

 Pod splitting from the top doiumvards, not woolly on the edges 

 of the valves. 



a. C. umbella'ta Nutt. Stems about 6 in. to a foot high, with 

 the leaves often in whorls, not spotted. Peduncle 4-7-flowered, 

 with the bracts narrow and deciduous ; filaments hairy on the margins 

 only. California to British Columbia. 



b. C. Menzie'sii vSpreng. Stems about 6 in. high, with a few 

 branches from the base. Leaves sometimes mottled with white. 

 Peduncles 1-3-flowered. Filaments slender, with a woolly dilated cen- 

 tral part. California to British Columbia. 



