.38 



Transactions British MycoJogical Society. 



Grove* considers that Ccphalothecium roseum, Trichotheci- 

 urn roseum, T. candidum, T. obovalum, C. candidum are vary- 

 ing states of one's species, and I am of the same opinion, but 

 he further mentions Harz's suggestion that the genus 

 Arthrobotrys also is only a more highly developed form 

 of Trichothecium and that if so Arthrobotrys superba and A. 

 oligospora and A. rosea are also other states of the same 

 species : with the latter suggestion I do not agree since the 

 conidial chains formed by the above described basi-petal 

 mode of growth could hardly lead to the formation of the 

 nodal conidiophore of Arthrobotrys. 



* Grove : New or Noteworthy Fungi, part IV., Journal of Botany, 1912, p. 14. 



EXPLANATION OF FIGURES. 



1. a, Pendulous cluster of conidia, x 65. 



b, A head of conidia — the usual form, x 65. 



2. Part of pendulous cluster, showing attachment of 



conidia to one another, x 800. 



3. Conidiophores showing basipetal method of conidia 



formation, x 800. 



4. Young conidiophores with small clusters of conidia,. 



x 800. 



