20 



immense fortifications occupy a considerable space all round the 

 town, and beyond these, all the level spaces seem occupied by corn, 

 and the slopes by vineyards. Euphorbia esula, E. stricta, and 

 E. Gerardiana are abundant, and in some places Anchusa officinalis. 

 Iris spuria grows in some meadows on the right bank of the Rhine, 

 near Gisheim, but I sought for it without success. At Mannheim, I 

 had on a former occasion gathered Trapanatans, but I could not now 

 find it. I had also remarked a sandy tract of low hills, partially 

 covered with pine-woods, where I had met with Kochia arenaria and 

 Alyssum raontanum. I thought a further investigation, and at an ear- 

 lier season, could not fail to be productive. I was not disappointed, 

 since Pyrola umbellata grows there, but the flowers were not open. P. 

 chlorantha was in great abundance, and in good condition, but unfor- 

 tunately, at the time I supposed it to be, Pyrola minor. This and P. 

 secunda are also found in this tract ; and one or two specimens of P. 

 minor and uniflora are said to have been gathered here. The Mono- 

 tropa had just begun to exhibit above ground its curved stem. 

 Orchis militaris here grows on the sand ; and Crepis tectorum and 

 Phleum Boehmeri are plentiful. The other plants found in my walk, 

 were Diplotaxis viminea and Erucastrum Pollichii. I hunted the 

 meadows both on the Nahe and the Rhine, without finding anything 

 interesting. 



On the evening of the 4th I went to Diirkheim, and botanized 

 there on the 5th and 6th. The best stations are little bushy banks 

 here and there found among the vineyards, on a low range of hills on 

 the north-east of the town, which are partially calcareous. Here 

 grow Stipa pennata, Inula germanica not yet in flower, Globularia 

 vulgaris, Galium glaucum in fruit. Arenaria Jacquinii is very abundant. 

 I know not why Koch has rejected the names both of Jacquin and of 

 De Candolle, to give one of his own. Physalis Alkekengi grows in 

 one corner of a vineyard ; but these corners and bushy slopes have 

 been much abridged, and the plant is all but extirpated. Mr. Konig 

 had showed it me three years ago. Althaea hirsuta is said to be con- 

 fined to one spot, but I happened to light upon it. There are also 

 Linum tenuifolium, Sedum rupestre and Crepis tectorum, with 

 Sclera carissa and Dianthus prolifer. Anthericum ramosum, which 

 I had gathered in full flower on the 8th of July, three years ago, did 

 not yet show its flowering stems. A Potentilla, which I suppose to be 

 cinerea, but which I confess I cannot with any certainty distinguish 

 from P. verna, is also very abundant. 



(To be continued). 



