THF. GKNUS KOSA 289 



a very short while later, and note the changed scene. Gone 

 is the plentiful promise of fruit, and all that remains for our 

 inspection is a shrub abundantly endowed with leaves and a 

 site strewn with countless shrivelled, immature fruits— at least 

 this has been Barclay's experience as well as mine. Figs. 

 28-31, Plate XXII., will illustrate the stage at which the 

 shrubs most accessible to me cast their hips. 



Personally, I have only encountered two fertile wild hybrids, 

 one the lutetiana X cornfolia var. Lintoni already mentioned, 

 and a mollis)^ piinpineUifolia from Corbridge, Northumberland. 

 Fruits of the former are to be seen in Fig. 25, plate xxi., and 

 of the latter in Fig. 30, plate xxii., whilst those of their 

 putative parents appear in Figs. 8, pi. xvii. ; 16, 17, 19, 

 pi. xix. 



Mr. Barclay's experience of fertile hybrids is even more 

 limited than my own. Whilst, favoured by his more northerly 

 home, he has inspected many more hybrid bushes than I, he 

 has only fallen in with one fertile specimen, the parentage of 

 which he was able to ascertain with absolute precision to be 

 R. omissia X R. pimpinellifoUa. The shrub in question, classed 

 as an involuta form, grows near Auchterarder railway 

 station, Perthshire, and a fruiting twig plucked from it is 

 shown on Plate X., and fresh 1919 hips on Figs. 21 and 22, 

 whilst Fig 23 (plate xx.) depicts last season's fruit from the 

 actual parent o//iissa. With his Haddington pimpinellifoUa X 

 rubiginosa matters are apparently the same, and the plant 

 yields an enormous supply of perfectly ripened fruits. How- 

 ever, if one opens them another tale is told ; only in a few 

 cases do they contain more than a mass of chaffy scales. 

 Barclay, nevertheless, gives the facts concerning a pimpinelli- 

 foliaY<rubiginosa reared artificially by Wilson, of St. Andrews. 

 This undoubtedly fruited satisfactorily, and, moreover, its 

 seeds germinated so freely that an F2 generation has been 

 grown. One plant of this lot leant unmistakably towards 

 R. pimpinellifoUa. Many other garden hybrids of R. 

 ?nbiginosa, like Lucy Ashton, Anne of Geierstein, etc., which 



