161 



too much infested with the larvae of insects. When this 

 latter is the case, some oil of turpentine poured over them 

 will either drive them rapidly from their holes, or destroy 

 them. Species with a clammy viscid pileus it is better to ex- 

 pose to a dry air, or the heat of a fire, before being placed in 

 the papers. 



The separate parts of the Genera Phallus and Clathrus I fill 

 with cotton : I keep them for a time exposed to a dry atmos- 

 phere, and then, after removing the cotton, subject them to 

 pressure. The same may be done with the large tremelloid 

 Pezizce. 



F. J. Klotzsch. 



Tab. LXXXIII. Fig. A. represents a Boletus cut through 

 according to the above method : a. a. the central portion 

 or section : b. b. b. the two lateral portions or sections. 

 B. an Agaric : a. a. the central section : b. b. b. the two 

 lateral sections. 



I have witnessed, with great satisfaction, the whole of the 

 above process for drying the fleshy Fungi, and have now- 

 many species preserved in my Herbarium according to this 

 method. Not only is the outline of the Fungus thus retained, 

 and, in most instances, the essential distinguishing character; 

 but there is this further advantage, that, from the specimens 

 containing a smaller quantity of fleshy matter, they are infinitely 

 less liable to the depredations of insects, than if the whole 

 Fungus were submitted to pressure. In order to protect my 

 Herbarium in general, as much as possible, from these 

 troublesome visitors, I wash (with a camel-hair pencil) or 

 sprinkle such specimens as are most subject to them, with oil of 

 turpentine, in which I put a small quantity of finely pounded 

 corrosive sublimate. It is true that this substance is not 

 dissolved in the oil, but by shaking the bottle before using 

 it, it is diffused throughout: and by the penetrating and subtle 

 nature of the fluid, it is widely spread over the specimen so 

 treated, and remains to protect the plant after the oil has 



VOL. II. M 



