210 CRYPTOGAMIA FUNGI. 



114. TORULA. 



1. T. herbarum, filaments very short, densely crowded, so as to 

 form a broad black velvet-like crust GREV. .FL Edin. 469. 

 Bot. Gall ii. 931. 



Hob. On dead stems of herbaceous plants, near their base. 



The filaments are very distinctly jointed under the micros- 

 cope, rigid, straight, and simple. 



115. ACROSPORIUM. 



1. A. monilioides, filaments very short and tender, erect, simple, 

 loosely tufted, white or yellowish ; joints oval, pellucid GREV. 

 Crypt. Fl. t. 73. ; Fl. Edin. 469. Oidium monilioides, Bot. Gall. 

 ii. 932. 



Hob. On the living leaves of grasses, especially of Hokus 

 lanatus, in spring, frequent. 



Forms irregular pulverulent spots of a white or greyish 

 colour, and the microscope is necessary to discover the 

 filamentous structure. The joints in Dr GREVILLE'S 

 figure are represented more globular than they really are. 



116. MUCOR. 



1. M. caninusy filaments tufted, erect, simple, white, each tip- 

 ped with a minute amber coloured or brown globular head, 

 GREV. Crypt. Fl. t. 305. 



Hob. On swine's and dog's dung. Early spring. 



A beautiful kind of mould, covering the substances on which 

 it grows with a hoary beard. Filaments i inch high, pel- 

 lucid, unjointed, tubular; capsules when young of an am- 

 ber colour, but becoming darker or even brown when 

 mature. If wetted with a drop of water, they instantly 

 burst and discharge a cloud of pellucid ovate granules, so 

 numerous, and comparatively so large, that we wonder in 

 what manner they had been packed within so small a globe. 

 Some of the granules are likewise projected down the tube 

 of the stalk, as I once very distinctly witnessed. The im- 

 mature capsules are not affected by moisture. 



%. M. mucedoy filaments crowded, mould-like, simple, pellucid. 



