294 FUNGUS-FLOKA. 



whorled, quaternate, crowded; head of conidia globose, 

 white ; conidia 5-5 p long, conglutinate, oblong, surrounded 

 by a thick gelatinous stratum. 



Gliocladium penicillioides, Corda, Icon. Fung., iv. p. 31, 

 pi. vii. fig. 92 ; Grove, Journ. Bot., vol. xxiii. p. 10. 



On the hymenium of an old Stereum (probably hirsutum). 



The gelatinous heads of neighbouring stems unite, even 

 1520 being thus bound together into one large common 

 head. The resemblance of the Gliocladium to Penicillium is- 

 striking, but I could not ascertain that the spores were ever 

 in chains in my specimens, and the abundant gelatinous 

 secretion of the former is a marked feature, which Mr. 

 Plowright informs me that he did not notice iu the conidia 

 of the Hypomyces figured in "Grevillea." I could not 

 perceive in my spores the gelatinous coat which Corda 

 figures ; they measured 5 X 2 /A, and were extremely abun- 

 dant. The stems were thrice bi- tri-chotamous, the branchlets 

 being parallel and appressed. (Grove.) 



Considered to be the conidial stage of Hypomyces aureo- 

 nitens. 



Gliocladium lignicolum. Grove. 



Hyphae gregarious or fasciculate, erect, equal, 3-4 septate, 

 hyaline, apex penicillate di- tri-chotamous ; head of conidia 

 white, globose or obovate; conidia involved in. mucus, 

 oblong ovoid, 2-2 5 x 1 ' 5 //.. 



Gliocladium lignicolum, Grove, Jonrn. Bot., vol. xxiii. p. 11. 



On wood. 



Perhaps a variety of Gliocladium penicillioides, from which 

 it differs in the conidia being only half the length, and the 

 habitat different. (Grove.) 



TRICHODERMA. Pers. (emend.) (fig. 26, p. 313.) 



Mycelium or sterile hyphae in plane, compact tufts, 

 fertile branches ascending, typically 2-3 times forked, tips 

 not inflated, but bearing a head of minute colourless or 

 coloured conidia. 



Trichoderma, Persoon, Disp. Fung., p. 12 ; Sacc., Syll., iv. 

 p. 59. 



