262 DICOTYLEDONS. ROSACE.i:. GcUIU. 



■^-^ ViLLOS.i;. Root-shoots straight, prickles nearly so. Leaflets 

 ovate or oblong, with their serratures spreading. Lea/lets of the 

 calyx conuiveut, persistent; disk of the calyx thickened, closing 

 over the mouth. 



5. R. villosa, leaflets elliptical obtuse, fruit very large with nu- 

 merous rigid crowded bristles, segMicnts of the calyx viscid 

 hisjjid. p ir^S. — IFovds. 



6.R. tojnen/osa, Icii^cls ovate rather acute, fruit hispid or naked. 



a. vera, shoots bent, segments of the calyx compound. 



/3. mollis, shoots straight, segments of tlit' calyx subsirnple. 

 p. 156. — «. Seaside. /3. Bank.^ rf rivers. 



*;v* RuBiGiNOS^. Prickles unequal, sometimes setiform, rarely {if 

 ever) none. Leaflets ovate or oblong, glandular, with the serratures 

 divergent. Segments of the calyx persistent. Disk incrassatcd. 

 Shoots bent. 



7. R. ruhifrinosa, prickles hooked, leaflets rugose opaOjUC, calyces 

 and })edunclcs hispid. 



«. vi/loaris, prickles strong very unequal, styles hairy, fruit ovate 

 or oblorig. 



:&. inodoui, prickles very much hooked nearly equal, leaflets less 

 o-landuiar, segments of the calyx deciduous before maturity. 

 p. 157. — u. Hedges, d. Ediniurgli, 



**** Caxix^e. Prickles equal, hooked. Leajlets ovate, without glands; 

 serratures connivent. Segments <f the calyx deuduons. Disk in- 

 crassatcd, closing over the mouth of the tube. The larger shoots bent. 



8. R. cayiina, leaflets rigid ovate, ovaries 20 — 30. 



e, diimelorum, leaves hairy on both sides, segments of tlie cal. 



and peduncles smooth. 

 ^. cceud, leaflets ceesious hairy on both sides, tube of the cahs 



elliptical. /J. 157. — Hedges. '(^. Banks of rivers. 

 »*■«** JJYSTYL.^. Styles cohering in a lengthened column. Stipules 

 adnate. Habit much like that of the last division. 



9. R. arvensis, shoots flagelliform, prickles unequal falcate, leaf- 

 lets glaucous beneath, p. 158. — Hedges. 



10. R. systyla, shoots assurgent, prickles very stout hooked. 

 p. 159.— Hills. 



Sect. III. PotentillE-?.. Jhlienia superior, attached to an 

 usually fleshy exserted receptacle. Seeds suspended. Sta- 

 mens indefinite. 



1. GEUM. 



Co/. lO-cleft; alternate segments minute. Petals 5. Pericarps 

 with a long geniculated aiun. Receptacle oblong. 



1. G. Jc'/Z'crn?im, flowers erect, awns naked, cauline leaves ter- 

 nate, radical ones lyrate piiniale. p. 1(35. — JVoods and hulges. 



.2. G. rivale, flowers tlrooping, awns feathery, cauline loaves ter- 

 nate, radical ones intcrrnptcdly pinuuto-lyrate. p. 165, — 

 Mar.shcs. 



