APPENDIX. 563 



often 5-nate. Lts. yellowish, very softly hairy beneath. Pan. 

 lax, pyramidal. Sep. rising early and clasping poor fr. 



Subsp. Purchasianus Rogers/ St. roundish, densely hairy. 

 Prk. crowded, stout-based. L. mostly 5-nate-pedate. Lts. 

 narrow, strigose on both sides. Pan. nearly cylindrical. Sep. 

 shaggy, erect in fr. 



Subsp. adornatus P. J. Muell. St. bluntly angled, pubescent, 

 glaucous. Prk. very strongly declining. L. chiefly 4-5-nate. 

 Term. It. narrowed very evenly to long point. Pan. very 

 narrow, wavy below. Sep. soon erect. 



Subsp. Powellii Rogers. Slender. L. small. Lts. very 

 narrow, with long attenuate point and compound incised teeth. 

 Stkd. gl. very unequal ; other glandtipped organs usually 

 absent. Pan. very compound; lax, corymbose. Sep. strongly 

 reflexed in fl. and fr. 



R. hostilis Muell. & Wirtg. St. bluntly angled. L. chiefly 

 5-nate, often large. Lts. narrow, with irregular partially com- 

 pound teeth and very long point. Pan. mostly short and 

 racemose above. Fr.-sep. attenuate, claspiug. 



b. Prk. extremely unequal, some very long. Stkd. gl. on 

 racli. passing into glandtipped acic. 



R. fusco-ater Weihe. Stout and very hairy. L. moderate. 

 Lts. typically roundish-ovate with sharp point, not deeply in- 

 cised. Armature very strong. Fr.-sep. erect or patent. 



2. Prk. acic. bristles and intermediate organs of all kinds 

 very numerous, very unequal, indiscriminately scattered and 

 not unfrequently glandtipped. 



a. Pet. white. 



R. Koehleri Wh. & N. Armature remarkably unequal, 

 mostly slender, often glandtipped. Lt.-toothing rather coarse. 

 Pan. open, slightly narrowed above. Fr.-sep. reflexed. 



Var. coynatus (N. E. Brown). Intermediate arms often less 

 numerous. Leaf-toothing almost lobate-sinuate. Pan. broad 

 and much branched. Fr.-sep. at first subpatent. 



b. Pet. pink. 



Subsp. dasyphyllus Rogers. Intermediate arms present in 

 very varying quantity. Lts. thick; teeth compound, partly 

 recurved. Pan. very narrow, interrupted. Fr.-sep. reflexed. 



R. plinthostylus Genev. Armature rather sub-Koehlerian. 

 Lts. long, narrowed at both ends, very pale beneath. Pan. 

 large. Fr. small. Fr.-sep. loosely reflexed or subpatent. 



R. Marshalli Focke <te Rogers. Hairy. Armature ex- 

 ceedingly dense and unequal, almost wholly patent. L. small. 

 Pan. very elongate, with very long lower branches. Sep. 

 subpatent in younglfr. 



