340 FREAKS OF PLANT LIFE. 



pileus, Agaricns (clitocybe) dealbatus. The imitating 

 fungus had the same wavy cap, white colour, and 

 fungoid odour, but the spores were pink, and its 

 structural features were distinctly those of quite a 

 different species, Agaricus {clitopibis) orcclla. In 

 this instance both were quite innocuous. Two 

 wholly distinct, but very similar fungi commonly 

 grow together on wood ashes, or scorched places, 

 where charcoal has been burnt ; these are Cantharelliis 

 carbonarius and Agaricns {coUybid) atratus. Then, 

 again, another pair of fungi, in which sulphur colour 

 prevails, are found growing together on wood. These 

 are Agariais {hypholoma) fascial laj'is and Agaricus 

 {flanwitila) conissans, or, similarly Agaricus {hy- 

 pholoma) capnoides and Agaricns {Jiauiinnla) alnicola. 

 In all these four the coincidence of colour, form, 

 size, mode of growth, and even habitat, is com- 

 plete. With any one of these, again, may be com- 

 pared the recently discovered Agaricus {clitocybe) 

 Sadleri, which has white spores. Here we have five 

 yellow species found growing on wood, and so like 

 each other that an ordinary observer would consider 

 them all as the same species, not taking the colour of 

 the spores into account. There is, moreover, a small 

 agaric, which is known to the majority of mycologists 

 on account of its strong odour of stinking fish {Agari- 

 cus aicumis). It grows on the ground, and upon 

 fragments of wood, and has red-brown spores. Yet 



