APPENDIX. 551 



Lts. ovate or oval acuminate, softly hairy or felted beneath. 

 Pan. with prk. chiefly long, slender, declining. Stam. far 

 exceeding sty. 



Suhsp. Selmeri Lindeb. St. and 1. less hairy. Prk. falcate. 

 Lts. concave, roundish-ovate, with wavy edge. Stam. short, 

 often barely equalling sty. 



Group V. DISCOLORES. St. erect-arcuate or arcuate- 

 prostrate, thinly or densely pubescent or hairy or glabrous, 

 sometimes pruinose, rarely rooting. Lts. with whitish felt 

 beneath, which becomes greenish in autumn. Pan. hardly 

 narrowed above (except in R. arcjentatus). Usually quite 

 eglandular. 



1. St. erect-arcuate, rarely rooting, glabrous or very nearly 

 so, furrowed. 



R. ramosus Briggs. L. 3-5-nate-pedate. Lts. convex, 

 shining above, coarsely serrate ; term, oblong or obovate cus- 

 pidate. Pan. lax. with long branches. Fr. small; poor. 



R. thyrsoideus Wimm. L. 5-nate-digitate , Lts. flat or 

 concave, often incised-serrate ; term, oval or ovate, acuminate. 

 Pan. elongate, cylindrical above. Fr. fine. 



2. St. arcuate-prostrate or climbing, often rooting, hairy or 

 pubescent. 



a. St. somewhat pruinose. 



R. argentatus P. J. Muell. Prk. (st. and pan.) long, rather 

 unequal, straight or falcate. L. 5-nate-digitate or pedate. 

 Pan. lax, narrowed above, with showy long-pedicelled bright 

 pink fl. and thick villous hair on rachis. 



Var. robustus (P. J. Muell.). Very strong and prickly. L. 

 thick, irregularly and deeply cut. Pan. less narrowed above. 



Yar. clivicola A. Ley. Prk. weaker. Term. It. short, 

 roimdish-obovate, with long cuspidate or cuspidate-acuminate 

 point. Pan. with long corymbose-cylindrical ultra-axillary 

 part. Pet. faintly pink. 



R, rusticanus Merc. St. furrowed, pruinose. Lts. glabrous 

 above, usually cuspidate. Pan. and ped. with close-pressed felt 

 and very broad-based hooked prk. Sep. reflexed (fl. and fr.). 



b, St. epruinose, pubescent. 



R. pubescens Weihe. L. 5-nate-digitate. Lts. oval or 

 obovate- acuminate, thinly hairy above, irregularly serrate. 

 Pan. elongate, felted, hairy, with hooked prk. Sep. with 

 upcurved tip. 



Var. subinermis Rogers. L. 3-5-nate-pedate. Pan. quite 

 unarmed or with few declining prk. 



