258 KEPOllT OP THE BOTANICAL EXCHANGE CLUB. 



of less than half an inch in length ; and as in the leaves, flowers, and 

 carpels they present no tangible nor constant dittcrence, it seems im- 

 possible to separate R. Sleveni, with a creeping rhizome (to which the 

 form R. v/df/atiis, Jord., must be referred), from R. BortEanm, Jord., 

 to which R. tomophylliis belongs. In R. acrls, therefore, we have the 

 very unusual feature of some forms possessing a distinctly creeping- 

 rhizome, while in others the rhizome does not creep, and dies rapidly 

 off towards the base. Both Mr. Preston and Mr. Duthie have been 

 good enough to send me living plants with creeping rhizomes, by ob- 

 serving which I hope to ascertain whether or no the direction and per- 

 sistent vitality of tiie rhizome continues permanent under cultivation, 

 or whether it be a feature depending on peculiarity of soil or on cer- 

 tain conditions of climate. All the specimens I have yet seen with a 

 creeping rhizome have come from the western counties of England, 

 while, strange to say, M. Lloyd states that all the R. acris of the west 

 of France is R. BortBanm with a premorse rootstock. A few days ago 

 Mr. Preston sent me specimens of R. vulgntus with an elongate rhizome, 

 but with the stems either perfectly glabrous or furnished with a few 

 adpressed hairs. 



Raumwulus parvidiis, L. "From wet ground adjacent to a pond 

 on a heath in the parish of Worplesdon, Surrey. This state of R. 

 Philonotis ought to have been entered in the ' London Catalogue of 

 British Plants' as a subvariety under R. hinutiis. It differs more 

 from the type, whether called R. Philonotis or R. kinut/is, than do many 

 other varieties which have been admitted into the ' Catalogue.' In- 

 deed, the first-sight appearance of this dwarf or depressed form is so 

 unlike the tall and upright state usually seen in cornfields, that a 

 young botanist might well overlook their specific sameness." — H. C 

 Watson. 



Papaver dnbiam, L. I have contributed a few examples of a plant 

 which seems intermediate between P. Lamottei and P. Lecoqii, hav- 

 ing the much-divided leaves and bright scarlet flowei"S of the latter, 

 and the permanently white sap of the former. Unfortunately, I was 

 unable to procure the capsules, from the grain being cut when I went 

 to look for them. This form occurred both near Burntisland and 

 Kirkcaldy. In the latter station it was associated with normal P. 

 Lamottei, which there was much more abundant than the supposed in- 

 termediate form. 



CocJtlearia danica, L. " King's Quay, Isle of Wight. There are 

 only two previously recorded stations in the Isle of Wight, viz. Fresh- 

 water and Bembridge." — Frud. Stratton. 



Nastartinm si/loedre, E. Br. var. In September, 1869, I gathered 

 some specimens of Nasturtium sylvestre on the banks of the Tay below 

 Perth which were remarkable for their very short silicules ; perhaps, 

 however, this was owing to arrested development of the later flowers, 

 and certainly in many of the silicules the seeds were abortive, though 



