The Sources of Nectar and Pollen 389 
Red bay, Persea borbonia. Southeastern United States, April- 
June. 
Redbud ; see Judas Tree. 
Red clover ; see White Clover. 
Red-root; see Morong. 
Rhamnacese ; see Buckthorn family. 
Rhododendron, Rhododendron spp. Valuable locally, Allegheny 
Mountains. 
Rock brush ; see Eysenhardtia. 
Rockrose, frostweed, Helianthemum spp. Pollen. 
Rockrose family, Cistaceae ; see Rockrose. 
Rocky Mountain bee-plant; see Cleome. 
Rosace® ; see Rose family. 
Rose apple, poma rosa, Caryophyllus jambos. Tropical, of value. 
Rose family, Rosaceae; see Meadow Sweet, Raspberry, Blackberry, 
Wild Raspberry, Greasewood, 
Strawberry, Roses, Plum and 
Peach. 
Roses, Rosa spp. Pollen only. 
Royal palm, Roystonea spp. Honey 
amber, West Indies. Secretes 
heavily. 
Rubiace® ; see Madder family. 
Rue family, Rutaceae; see Citrus 
Fruits. 
Rutaceae ; see Rue family. 
Sage brush, Artemisia californica. 
Valuable for pollen, southern 
California. 
Sages, Ramona spp. (Also classified 
as Audibertia spp. and Salvia 
spp.) Plants of California species 
vary in size up to 10 feet. 
April-July. Honey “ water- 
white,” granulating least quickly 
of any American honeys, flavor 
mild and delicious. The semi- 
arid regions of southern California Fig. 166. — Button sage, 
in canons to 5000 feet (Richter). 
The black, ball or button sage, R. stachyoides (Fig. 156), is 
perhaps the most important, although white sage, R. polysta- 
chya (Fig. 157), and purple sage, R. nivea, are valuable. 
These plants require about twenty inches of rainfall in late 
winter followed by warm spring, free from fogs, to produce 
