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MB. CUBBBT ON THE DEVELOPtfEKT OF SOLEBOTIUH BOS£UK« 147 



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probable that some similar chaDge may take place in (Edogonium. 

 The observation of the spores, therefore, in this genus, after their 

 formation or separation from their parent-cells, presents another 

 interesting subject of investigation. 



The species of Bulhoch<ste on which the microgonidia are figured 

 bj Mr. Broome, appear to be -B. setigera and B. crassa. The two 

 species at any rate are different, for while the spores of B. setigera 

 measure -003 in diameter, or ^y'", in the other species they mea- 



sure only 0015, or -rrlJ^K On the threads of the former a little 



parasitic species is also figured, which I believe to be undescribed, 

 and has been named by Messrs. Broome and Thwaites B. para^ 

 ^itica. Microgonidia have not been observed in this species ; but 

 the specimens are so entangled with the threads on which they 

 grow, that it is not possible to obtain a very clear view. The 

 sketches, it should be observed, are mere hasty sketches for the 

 Bake of illustration, and were made without the slightest notion of 

 being laid before the Society. 



On a New Species of Peziza, being the full Development of Scle- 



rosevm^ Kneiff 



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[Read June 17th, 1856.] 



The genus Sclerotium is one which, for a long time, has occupied 

 a doubtful position in the family of the Fungi. After having been 

 bandied about from one family to another, the opinion has for some 

 time been ctjiitiitkv <rivMi«/1 fTinf fliA Sfljimtia are not autonomous 



productions, but 

 l>emg arrested in 

 only a favourable 



Fungi 



The 



natural condition or by cultivation 



Fimgi 



belonging to widelv different families, but there is still 



dumber 

 and whi 



traced 



in the mean time are necessarily retained in the genus 



*rotivm. Under these circiunstances, any 

 fullde 



matter 



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while to bring 

 following instance. The Scle- 



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^ottum to which I allude is ScUrotium roseum^ Boieiff. 

 found in the interior of thfi Rtema of Bull-rushes and 





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