RTJBUB. 117 



(4) Olanduhsi. Stems arcuate-prostrate or prostrate, root- 

 ing, hairy. Prickles abundant, very unequal, scattered, 

 passing gradually into abundant aciculi and setse. 



a. Koehleriani. Leaves quinate or rarely temate. Prickles 

 and setae thickened at their base. 



31. M. Koehl'eri (Weihe) ; st. arcuate-prostrate roundish or 

 angular pilose, prickles very unequal slightly declining from a 

 compressed base, aciculi and setse very unequal, Its. unequally 

 or rather doubly dentate even above pale green hairy on the veins 

 beneath, term. It. cordate-ovate, hasal Its. not imbricate stalked, 

 pan. open leafy its branches short patent corymbose or the 

 axiUary branches racemose its prickles many long slender de- 

 clining its aciculi setse and hairs many imequal, sep. ovate- 

 attenuate patent or refiexed from the fruit. Pale stam. ex- 

 ceeding pink styles. — a. JR. Koehleri (Weihe) ; st. with many 

 prickles aciculi and setse. Us. hairy only on the veins and rough 

 beneath, pan. open truncate often broad-topped its branches long 

 corymbose patent or the axillary branches racemose and as- 

 cending, term. ped. of pan. and branches shorter than the lateral 

 ones. M. 0. 25. E.B. S. 2605.— (3. infestus (Bab.) ; st. with many 

 strong prickles aciculi and setse, Its. hairy only on the veins and soft 

 beneath, pan. broad but compact rounded at the end its branches 

 moderate rather corymbose erect-patent, term. ped. of pan. and 

 branches shorter than the lateral ones, prickles of pan. strong de- 

 flexed, a. obliquus (Blox.) perhaps belongs here. — y. R. pallidus 

 (Weihe) ; st. with fewer but strong prickles aciculi and setae, Its. 

 often slightly felted hairy on the veins and soft beneath, pan. narrow 

 its branches short corymbose-racemose patent or the axillary 

 branches ascending, ten-m. ped. of branches often longer than the 

 lateral ones. H. Q. 29. — 8. iJ. cavatifolius (Miill.) ; st. subgla- 

 brous, aciculi and setae unequal inconspicuous, hairs very few, 

 Its. not felted but hairy on the veins beneath, term. It. cordate 

 cuspidate-attenuate, pan. abrupt with very short terminal pe- 

 duncles. — ^All are usually very prickly ; their very strong prickles 

 pass very gradually into aciculi, and those into setse ; st. often 

 quite covered by their broad bases. Pet. white.' — Hedges and 

 thickets. Sh. VII. VIII. E.S.I. 



32. R.fusco-dter (Weihe) ; st. arcuate-prostrate angular hairy, 

 prickles unequal slightly declining from a very large compressed 

 base, setse and strong unequal aciculi many. Its. irregularly or 

 rather doubly dentate even above green and hairy beneath, term. 

 It. broadly cordate-ovate acuminate or subcuspidate, basal Its. 

 stalked imbricate, pan. long subpyramidal leafy below its branches 

 patent corymbose or the axillary branches erect-patent racemose 



