Dk. Arnott' S Sotankal Excursion to the Rhinns of Galloway. 57 



between S. sylvatka and j}alus(7is; by others to be a slightly nan'ow- 

 leavedform of S. sylvatica; that whicli we found differed only from /S'.^aZiisim 

 by the leaves decidedly, although shortly stalked, and more cordate at 

 the base: that ours was the true plant, I have no doubt, since Mr. 

 Bentham, the best authority in the world for the species of Labiatae, has 

 reduced it as a mere YVLxmiy to S. palustHs; a variety which, although 

 he has called it /3 hyhrlda, appears to me to differ in no j)ermanent degree, 

 as every legitimate variety ought to do, from the type of the species. We 

 also found the common state of S. palustris in the neighbourhood, but I 

 did not observe any of the S. sylvatica, although very probably it is to be 

 met with there likewise. 



We returned to Drumore about seven o'clock, and thus concluded our 

 first day's excursion. 



Having seen our packages dejjosited in the Port Logan coach 'for 

 Stranraer, which left Drumore at half-past seven next morning, we took the 

 direction of Port Logan across the peninsula. The road, made chiefly 

 for the use of the farm-houses, is extremely zig-zag. The distance was 

 stated first to be three miles, then about three miles ; as we got at least a 

 mile on the way. Port Logan seemed to be farther oft" than when we started, 

 and it was now about four miles. The true distance can scarcely be less 

 than five or six miles ; so that, although we did not loiter much by the 

 way, we did not reach our destination till half-past nine. We found here 

 Pejjlis Portula, and at Cowans, the willows alluded to by Dr. Balfour : 

 they were Salix aquatica, caprea, alba, and fusca; the three first certainly 

 cultivated : Euonymus Europceus may also gi"Ow here, but, like ruany 

 others observed in the hedges, had obviously been planted. The neces- 

 sary interlude of breakfast being performed, we directed our steps to 

 the beach, where we observed Calystegia Soldanella, Eryngivm maritimum. 

 Polygonum Poberli, (Enanthe Lachenalii, Atriplex laciniata, and perhaps 

 A. rosea, Scirpus maritimus, and a single plant of Beta maritima. It was 

 my wish to examine iSclrpua maritimus with attention, as in North 

 America there are undei'stood to be two very distinct varieties, or perhaps 

 species, confounded under that name or its synonyme S. macrostachyos 

 of Muhlenberg ; and it is as yet doubtful which is our British one — if, 

 indeed, we do not possess both. The one, the true S. ')naritimus, has the 

 nut broadly obovate, lenticular, shining, and much longer than the hypo- 

 gynous bristles, which are slender ; the other, which more properly merits 

 the name of >S'. macroslachyon, the fijlumatilis of Dr. Torrey, has the nut 

 triangular, narrowed downward, dull, acuminated, and only as long as the 

 hypogynous bristles, which are rigid : the first is found in salt marshes, 

 or not far from the sea shore ; the other, along the borders of lakes and 

 rivers, always in fresh or only slightly brackish water. Those we found 

 on the coast of Galloway I presume to be the true S. maritimus from the 

 locality, but the fruit was so extremely young as to throw no certain 

 light on the subject, or if in Europe the same differences of structure were 

 connected with the difference of locality. I i-ecommend it to the attention 



