328 MESSRS. HANCOCK AND ATTHEY 



occasionally papillose, and frequently terminating in large sphe- 

 rical vesicles, and with smaller bulbous enlargements, sometimes 

 two or three in close succession, their diameter being three or 

 four times that of the branches, the terminal vesicles being much 

 larger. 



Several specimens of this species have occurred ; and we have 

 two or three of what we consider to be a variety of it with simi- 

 lar branches ; but neither have they bulbous enlargements nor 

 are they papillose. The peculiarities of this variety are probably 

 owing to its state of development. 



2. AeCHAGAKICON aLOBULIFEUUM. 



Tubes various in size, the larger about ^TjVoth of an inch in 

 diameter, smooth ; both stems and branches straight or very 

 little sinuous, with numerous globular enlargements five or six 

 times the diameter of the tubes, and with a few extremely large 

 spherical vesicles many times larger than the globular enlarge- 

 ments, some of them -gVth of an inch in diameter. 



This species is distinguished from A. hulhosum by the straight- 

 ness, smoothness, and minuteness of the branches, and also by 

 the more numerous globular enlargements, and particularly by 

 the great size of the terminal vesicles. Several specimens have 

 been obtained. 



3. Akchagaricon eadiatum. 



Tubes large, measuring -g^oth of an inch in diameter, short, 

 smooth, a little tortuous, and appearing as if radiating from cen- 

 tres, but not with much regularity; their margins are not always 

 exactly parallel, but usually somewhat irregularly sinuous. 



This is a very characteristic species, and cannot be confounded 

 with any other. We have two specimens exactly agreeing in 

 the above characters ; a third has, in addition to the radiating 

 tubes, large, irregular, rounded vesicles. The variation is pro- 

 bably owing to a different state of development. The fungus is 

 elongated and rather small. 



