i^ 8CI ENTIFIC AND POPULAR. 326 



a, R. offlcindlis L. Mediterranean region, cult, in gardens. 

 Rosemary, Garden Rosemary, Old-man; Ger. Kosmarin, Meer- 

 thau; Fr. Romarin (Codex); Sp. Romero. Leaves; i osmari- 

 nus, U. S P., Folia rosmarini, Fol. roris mariui, Fol. anthos; 

 diaphoretic, carminative, emraenagogue. Sourceof oil of Rose- 

 mary. 



1745. ROTALA, L. - Rotala. - Lythraceae. 



From Latin, "wheel", alluding to whorled leaves of some 

 species. Syn. Ammannia, Boykinia, in part. Low annuals. 

 About 30 species, warmer regions; 1 in U. S. 



1746. ROTHRdCKIA, Gray. Rothrockia. Asclepiadaceae 



One species in western U. S. • 



1747. ROUBIE VA, Moq. Cut-leaved Goose-foot. Cheiiopodiac«ae. 



Named for G. J. Robieu, French botanist. Syn. Chenopo- 

 dium, in part. A strong-scented herb. One species, tropical 

 America, adv. in U. S. 



1748. ROULINIA, Decne.,not Brogn. Roulinia. AsclepiadatM'ae. 



Twining herbs. About 12 species, tropical America; 1 in 

 U. S. 



1749. RIjBIA, L. Madder plant. Rubiaceae. 

 The Latin name, from ruber, "red". Perennial herbs from 



thickened roots. About 40 species, temperate and warm regions, 

 both hemispheres. 



A, R. tiuctorum L. Mediterranean region. Madder plant, War- 

 ence; Ger. Krapp, Farberrothe; Fr. Garance (Codex); Sp. 

 Granza. Root, Dyer's Madder, yields a red dye, as does that 

 of(b) R. cordifoiia L. (R. Mungista Roxb. ), of eastern Asia 

 and Japan, Munjeet. 



1750. RUBUS, L. Blackberry, etc. Rosaceae. 

 The ancient Latin name, from 7t/6cr, "red". Herbs, shrubs 



or trailing vines, generally prickly. About 250 species, widely 

 distributed; 31 in U. S. 



a. R. Amcricdnus (Pers. ) Brit. (R. saxatilis var. Canadensis 



Michx., R. triflorujj Rich. ) . Canada and northeastern U. S. 

 Dwarf Raspberry, Dewberry, Mulberry*, Pigeon-berry, Run- 

 ning Raspberry, Swamp-berry. 



b. R. Canadensis L. Canada to Virginia, Louisiana and Indian 



Territory. Low Running Blackberry, Dewberry (of eastern 

 U. S. ), Creeping Blackberry. See (p). The Dewberry of the 

 southern U. S. is (c) R. trlvialis Michx., called also Low- 

 bush Blackberry. Similar to these is (d) R. cuniefolius 

 Pursh, Southeastern U. S., Sand Blackberry, Low or Knee- 

 high Blackberry. The Dewberry of Europe is (e) R. ca^siiis 

 L., called also Blackberry-token and Blue Bramble. 



f. R. Chamaemoriis L. Northern Europe, Asia and N. America, 



south to New Hampshire, Cloud-berry, Averin, Knot-berry, 

 Knout-berry, Dwarf Mulberry, Mountain Bramble, Mountain 

 Raspberry, Baked-apple-berry, 



