Classification . 9 1 



Forming very delicate velvety patclies barely 

 visible to the naked eye. 



Mucor tenerrmius, Berk. 



Scattered, minute, wholly colourless and pellucid ; 

 stem flexuous upwards, apex clavate ; sporangium 

 globose, colourless ; spores elliptic-oblong, colourless, 

 6x7 fjb. 



Mucor tenerrimus, Berk. Outl. p. 7 ; Cke. Hdbk. 

 n. 1892 ; Sacc. Syll. vii. 638. 



Hydrophobia tenerrimaj Berk.. ; Hook. Journ. 1841, 

 vol. iii. p. 78. t. 1, f. B. 



On sticks in woods. Rare. 



'' Scarcely visible to the naked eye, and when 

 examined with a good pocket lens exhibiting nothing 

 more than a short, very slender, white thread, with 

 a watery, colourless globule seated on its apex. 

 Under a hio^h mao^nifier the stem is found to be a 

 little flexuous above, and to end in a clavate swelling, 

 beyond which is the globose columella, from the base 

 of which is deflected all round over the apex of the 

 stem a delicate frill, which at first formed a portion of 

 the pendulum, and by its rupture leaves a large 

 circular aperture at its base. I am not able to state 

 positively whether there is any organic connection 

 between the tip of the stem and the columella after the 

 rupture has taken place, or, whether they are kept in 

 apposition by means of the frill, though I suspect that 

 such an union does exist. Peridinm quite smooth, 

 consisting of two membranes, between which there is 

 often a considerable space, though they are sometimes 

 in close contact. At the place where it separates 

 from the portion which remains attached to the 



