HARDWICKE'S SCIENCE-GOSSIP. 



253 



were sometimes seen with white flowers. I here came 

 upon an extraordinary monstrosity of the Botrychium. 

 There were two fertile fronds, one barren one, and 

 one small one bearing fructification on one side, and 

 the other half with the usual moon-shaped pinnae. 

 We also found specimens with the fertile frond bifid, 

 and others with one or two sporangia on the barren 

 frond. 



I saw a butterfly I took to be Colias Hyale, but on 

 catching it in my scissors-net found it to be a different 

 species. I now find it is the Colias Palceno, the larva 

 of which feeds on Vaccinium uliginosum, and which 



Fig. 151. — Scailet Tiger (Callimorpha domimda). 



Fig. 152. — Bordered White (Fidonia piniaria). 



Fig. 153- — Transparent Burnet (Zygna?ta minos). 



is a rather uncommon butterfly. The only other 

 insects I found were Tortrix viridana, Thccla rubi, 

 Odezia cfuvrophyllata, and Scoria lineata. 



During our whole tour we saw no uncommon ferns. 

 Lastrea Filix-mas, Orcopteris and dilatata, Athyrium 

 Filix-fcemina, Asplenium septcntrionale, Trichomanes, 

 and Ruta-muraria, and Blechnum Spicant, were the 

 order of the day. 



From the Titisee we drove down to Schluchsee and 

 St. Blasien, thence down the Albthal. I fancy 

 entomologists would find this a good hunting-ground. 

 One passes through some of the wildest scenery in 

 the Black Forest, while, the vegetation consisting 

 mainly of small bushy oaks, a number of white 

 admirals, fritillaries and other butterflies may be 

 seen. We then returned to Triberg, where we found 

 the insects much more advanced than before, although 



we had only been away a few days. I observed an 

 immense number of flies of the genus Septis, and of 

 both sexes, swarming round the trunk of a tree. I 

 gave a specimen to an entomologist, but have not 

 heard what species it turns out to be. 



I found the extraordinary Ledra aurita, also Argyn- 

 nis Aglaia, one of the Deltoida; and a Tortrix 

 {Pentliina cynosbana), and when making an excursion 

 to Hornberg we observed a great quantity of Rhizo- 

 trogics sohtitialis flying about. One of our party also 

 saw a Callimorpha domimda. After leaving Triberg 

 we went up the Schapbach valley to near Rippoldsau. 

 All the streams on the way were a beautiful sight, 

 being fringed with the Mimulus luteus in full bloom. 



Fig. 154. 



-Bordered White (male), under side. 



Fig. 155.— Bordered White (female). 



According to Bentham, it occurs " in North- Western 

 America and Chili, long cultivated in our flower- 

 gardens, and now naturalised in boggy places in 

 many parts of Britain." It certainly is abundant 

 enough in this valley to lead one to suppose it to be 

 a native there ; also it is not a place where one would 

 suppose it to be introduced. Its occurrence there is 

 therefore well worth recording. I have not seen it 

 anywhere else, and our "French Flora" does not 

 mention it. 



Next morning we took a walk in the woods and 

 found Mouotropa ITypopitys, and also a fly of the 

 genus Laphria. We were caught in a thunderstorm, 

 but in the afternoon it cleared up enough for us to 

 drive to Freudenstadt. 



On the way we found a quantity of the Lycopodium 

 alpinum in full fructification. From the top of the 

 hill, called the Kniebis, we saw a panorama extending 

 as far as the Swiss Alps. 



The following day we drove down the Murgthal 

 to Gernsbach, and I had rather a bit of luck on the 

 way. As the coach was stopping at a little village, 

 I got out and walked about a hundred yards and 

 found an Odoncstis pruni asleep on a leaf. Accord- 

 ing to Berge, it is rather rare. From Gernsbach we 



