136 REPORT OF THE LONDON BOTANICAL EXCHANGE CLUB. 
ing tour. Our stay in most places, as I have stated in the beginning of this 
nt 
dition, I have no hesitation in saying, the largest collection of choice and 
beautiful plants ever yet collected in the islands of the South Pacific. 
REPORT OF THE LONDON BOTANICAL EXCHANGE 
CLUB 
By J. Boswe.u-Syme, F.L.S., Curator. 
In the following Report, I have confined myself to remarks on the 
plants sent for distribution by the members of the Botanical Exchange 
Club, or those which have come under my own observation. 
Thalictrum sazatile, Schleich. Little Trees Hill, Gogmagogs, Cam- 
bridge; Mr. F. A. Hanbury. In the third edition of ‘ English 
Botany’ I expressed a suspicion that the flowers of this plant were not 
erect, and that it might be the T. collinum of Wallroth. I am now able 
to say that this is the case; the flowers are drooping. In 1863 I 
brought a root, gathered before it flowered under the guidance of Pro- 
fessor Babington, in the station mentioned above. This root I culti- 
vated until I came to Scotland last year, so that I was able to observe 
its flowers for several seasons. The pedicels are thicker and less 
flexible than in T. minus and T. Kochii, but the flowers always droop 
when expanded. The Cambridge pun cultivated beside 7. Kochii, 
Fries (received from Mr. H. C. Watson, who brought it from the 
Lake district), produced far fewer and much shorter stolons than the 
latter, which increased rapidly, new plants appearing on its subterra- 
nean stolons one or even two feet from the parent. The fruit of these 
two plants is very similar, and strikingly different from that of T. 
minus. 
Ranunculus aquatilis, Linn. Several of the forms, including var. 
Psendo-fluitans, near Warwick; Mr. H. Bromwich. In the third 
edition of ‘English Botany’ I arranged four subspecies under Z. 
aquatilis. I now believe these ought to be reduced to two; the first, 
R. peltatus, with its varieties vulgaris, floribundus, and Pseudo-flui- 
tans; the second, to which I propose to give the name R. stenopeta- 
lus, under which R. heterophyllus, Bab.; R. Drouettii, Schultz; and 
