ON EUMEX hydrolapathum. 49 



The actual additions to my " Outline " are : — 



Ranunculus intermedins, Iliern. 



C. 

 Fumaria Borroi, Jordan. C. 

 muralis, So7ider. C. 

 ■^Mcconopsis cambrica, L. W.R. 



Viola hirta, Z. 

 ^Hypericum anglicum, Bert. 0. 

 montanum, L. W.R 

 *Malva borealis, Wallm. C. 

 Rubus macrophyllu3, Weihe. C 



^Campanula rapuuculoides, L. 



W.R. 

 *Lycium barbarum, L. Ar. 

 *Mimulu3 luteus, Willd. W.R. 



Mentha alopecuroides, Hull 

 W.R. 



Prunella vulgaris, L. 

 *Atriplex rosea, L. Ad. 



Carex riparia, L. 



Poa compressa, L. 



Finally, I have a few corrections to make, for most of which I am 

 indebted to my correspondents. 



Carex elongata should be struck off the list at page 6 of the 

 "Outline," as it occurs in the Adur district. Lathr(€a Squamaria, 

 Washington, is in the Arun district, as is also Colchicum autumnale, 

 Storrington. Twyford, under Paris qtiadrifolia, should be Treyford. 

 For Melica nutans, p. 32, read il/". xmiflora. Ruiuex pratensis, Mert. & 

 Koch, is the same as R. aciitus, L., according to Hooker, though I 

 have quoted them separately. R. acutus, Sm., is the same as R. con- 

 glomeratus. An asterisk should precede Hellehorus fcetidmy Fceniculum 

 vulgare, and Asparagtis officinalis. 



ON RUMEX HYDROLAPATHUM, Huds., AND R. MAXI- 



MUS, Schreb. 



Ex R. A. Prtor, F.L.S. 



Theke is one point in the character of Rumex maxinms, Schreb., 

 which seems to have been overlooked in the recent discussions on the 

 subject, although it is noticed by Prof. Babington in the latest (7th) 

 edition of his " Manual," and considerable stress has been laid upon 

 it by at least one of the Continental botanists. Koch (Synops. Fl. 

 Germ., p. 614, ed. i.) concludes his account of R. Hydrolapathum, Huds., 

 with the remark, '^ Forma petioli liunc {R. Hydrolapathum) et duos 

 sequentes {R. maximus, and R. aquaticus = R. Hippolapathum, Fr.), 

 prcBter alias notas egregie distinguit,''^ and in his description he con- 

 trasts the leaf-stalks of the two plants now in question in the follow- 

 ing terms : — R. Hydrolapathum, " petiolis supra planis " ; R. maximus, 

 '■'■ petiolis supra planis utrinque costa prominula marginatis.^' Meissner, 

 in DC. Prodr. xiv., p. 47, 48, uses almost precisely the same ex- 

 pressions, defining the petioles of R. Uydrolapathum as ^'- supra 

 planis,'''' of R. maximus, " supra 2'>la'nisnervoso-marginatis.'" Grenier and 

 Godron, and Boreau are also quite in accordance on this point, assign- 

 ing to them a petiole "tout a fait plan en dessus " (Fl. do France 

 iii., p. 39), "plan" (Fl. du Centre, od. iii., p. 554), and "plan, ou 



K 



