IIKATII FAMII.Y. 369 



ill a one-sided viiofine; petiils with two tubercles ut base inside. — 

 Northern Sierra Nevada. 



3. LEDUM L. 



Low shrubs with fragrant herbage. Leaves alternate, entire, with 

 revolute margins. Flowers white, small, in terminal umbel-like 

 clusters from large scaly buds. Pedicels slender. Calyx of 5 almost 

 distinct segments, very small. Corolla of 5 obovate and spreading 

 distinct petals. Stamens ;"> to 10; anthers opening by terminal pores. 

 Capsule 5-celled, dehiscing from the base upward, many-seeded; 

 plaoentiB borne on the summit of the axis of the fruit. (Greek Ledon, 

 ancient name of the Cistus.) 



1. L. glandulosum Nutt. Lahrador Tea. Evergreen shrub, 3 

 to 5 ft. high; leaves rather thickly clothing the stems, oblong, acute 

 at each end, mucronate at apex, 1 to 2}^ in. long, green and glabrous 

 on both sides, or ligh t colored beneath with a dense close glandular- 

 dotted felt; petals elliptic-ovate, 2J to 3 lines long; stamens 4 to 10; 

 filaments ciliate toward the base; capsule oval, nearly 2 lines long. 



Point Eeyes Peninsula, Brandegee, Dact/, the only recorded station 

 within our limits; Novo, Mendocino Co. and northward; Sierra 

 Nevada. June. 



4. RHODODENDRON L 



Ours shrubs with alternate entire leaves crowded on the flowering- 

 branches. Flowers in umbels or corymbs, from terminal buds with 

 thin deciduous scales. Calyx very small. Corolla funnel-form to 

 campanulate, cleft, often somewhat irregular. Stamens 5 or 10; 

 filaments filiform; anthers short, without awns or appendages, the 

 cells opening by a terminal pore. Style filiform; stigma capitate or 

 somewhat lobed. Fruit a septicidal capsule, the valve separating 

 from the columella. (Greek rhodos, rose, and dendron, a tree.) 



Deciduous; flowers commonly white ; stamens 5 . . . 1. J2. oceidentale. 



Evergreen; flowers rose-purple ; stamens 10 . . 2. R. Calif ornicum. 



1. R. oceidentale Gray. Western Azalea. Shrub, 3 to 8 ft. 

 high; leaves narrowly or broadly obovate, 1 to 4 in. long, ciliate, 

 otherwise nearly glabrous; flower buds terminal, surrounded at base 

 by leaf buds which give rise to the shoots of the season; calyx 

 5-parted, its lobes oblong or oval; corolla white, IJ to nearly 2 in. 

 long, or sometimes rose-tinged, 5-cleft, slightly irregular, the upper 

 lobe with a large yellow splotch; tube conspicuously funnel-form, 

 glandular-viscid outside; capsule oblong, f in. long. 



Deep canons of the seaward and middle Coast Ranges, by stream 

 banks: Santa Cruz fountains; Marin Co., etc. Also in the Sierra 

 Nevada. A handsome shrub in June when in full bloom, the coi-olla 

 promptly deciduous from the receptacle, but held pendant for a time 

 by the tangle of stamens and style. R. Sonomense Greene is a form 

 with rose-colored flowers occurring from Sonoma ^'alley to Mt. St. 

 Helena. 



2. R. Californicum Hook. California Rose Bay. Erect, 4. 

 to 8 ft. high; leaves coriaceous and evergreen, oblong or elliptic, 



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