576 RUBUS 



berry, &c. are cult. ed. fr. The loganberry, a form which appeared 

 in 1 88 1 in the grounds of Judge Logan at Santa Cruz, Calif., is usu. 

 supposed to be a hybrid, but this is disputed. Seejourn. of Hered. 

 Nov. 1916, p. 504. 



Ruckeria DC. Compositae (8). 3 S. Afr. 

 Eudbeckia L. (incl. Lepachys Rafin.). Compositae (5). 35 N. Am. 



Cult. 



Ruderalis (Lat.), of waste places. 

 Rudgea Salisb. Rubiaceae (n. 5). 100 trop. Am., W.I. Some are 



heterostyled. 



Rudimentary organs, organs repres. by functionless rudiments. 

 Rudolphia Willd. Leguminosae (in. 10). 3 W.I., C. Am. 

 Rue, Ruta graveolens L. ; goat's-, Galega\ meadow-, Thalictrnm. 

 Ruellia Plum, ex L. Acanthaceae (iv A). 210 trop. and subtrop. 

 The capsule explodes. The seeds possess surface hairs which, when 

 wetted, swell and adhere to the soil. Cult. orn. fl. 

 Ruelliola Baill. Acanthaceae (iv. A), i Madag. 

 Ruelliopsis C. B. Clarke. Acanthaceae (iv. A). 2 S. trop. Afr. 

 Rufescens (Lat.), becoming reddish; rufous, reddish. 

 Rugose (dim. rugulose), wrinkled. 

 Ruizia Cav. Sterculiaceae. 3 Bourbon. 

 Rulac Adans. =Acer Tourn. (Acer.). 

 Rulingia R. Br. Sterculiaceae. 17 Austr., Madag. 

 Rumex L. Polygonaceae (I. 2). 100, esp. N. temp. (12 Brit., docks 

 and sorrels). Fls. of the type usual in the fam., wind-fert, with 

 large stigmas (see fam. for diagram, and cf. Rheum). Some have ' 

 adv. shoots upon the roots, e.g. R. acttosella L. R. Hydrolapathuni 

 Huds. is said to produce aerating roots like a mangrove. The roots 

 of R. hymenosepalus Torr. (N.W. Am.), the Canaigre, are used for 

 tanning. 



Rumfordia DC. Compositae (5). 3 Mexico. 



Ruminate (endosp.), marbled, or marked by wavy transv. lines. Anon. 

 Rumphia L. (Cordia p.p. EP.}. Boraginaceae (i), formerly Anacar- 



diaceae. i Malaya. 

 Runcina Allem. Inc. sed. Nomen. 



Runcinate (L), like dandelion, T"araxicitin offici/iale Weber. 

 Rungia Nees. Acanthaceae (iv. B). 24 trop. As. and Afr. 

 Runner, a creeping stem taking root at the nodes, Ajttga, Fragaria, 



ffydrocharis, holoma, Limosella, Nephrolepis, Ranunculus. 

 Rupestris, rupicolus (Lat.), growing on banks. 

 Rupicola Maiden et Betche. Epacridaceae (2). r Austr. 

 Ruppia L. Potamogetonaceae. i temp, and subtrop., R. maritima 

 L., in salt or brackish water. A slender swimming pi., with the 

 habit of a Potamogeton. The fls. are borne just at the surface of the 

 water, where fert. occurs by floating pollen. Each spike of 2 fls. not 

 enclosed in the spathe at the flowering time. The fl. has 2 sta. with 

 small outgrowths from the connectives, and 4 cpls. 

 Ruprechtia C. A. Mey. Polygonaceae (in. 2). 25 warm S. Am. 

 Rupture-wort, Hemiaria. 

 Ruralis (Lat.), of rustic places. 

 Rusa grass (and oil), geranium grass, Cymbopogon Martini Stapf. 



