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FUNGI : GENERAL 



irregular vacuoles ; minute oil-drops are also frequently abundant 

 in the protoplasm, but starch-grains are never present. 



Continuous growth goes on at the tip of each hypha and 

 a similar method of elongation is carried on by its branches. 

 Among the higher fungi the hyphse are always septate, that is, 

 divided into larger or shorter cells by transverse partitions or 



Fig. 22C).— a common ' mould,' Pemcillium crustacmm L. * hyphs fonning part of 

 Its mycelium : a erect hypha bearing conidia c in chains, b detached conidia, at t germ- 

 inatloo of a conidium has taken place, t germ-tube, the beginning of a new mycelium. 

 (Enlarged 500 diameters.) 



septa (Fig. 229), but in the lower forms the byphae are non- 

 septate or without transverse dividing-walls. 



4. The whole body or thallus of a fungus may be divided into 

 two parts, namely, (i) a vegetative portion termed its mycelium, 

 or spawn, chiefly concerned with the nutrition of the plant, 

 and (2) a more or less specialised portion, which bears the organs 

 of reproduction. 



