74C SUMMARY OFCURRENT RESEARCHES RELATING TO 



repeatedly branching to form multinucleate bits of protoplasm sur- 

 rounded by plasma membranes and separated by spaces filled with cell- 

 sap only. Later follows the formation of walls about the spores and 

 columella. There are slight differences in the process between the two 

 fungi examined. 



Zygospores of Mucorini.*— Paul Vuillemin insists on the taxonomic 

 importance of these spores in reference to the formation of their 

 appendages. He describes the various members of the family, and 

 draws up a table based on his theories. He has made two new genera, 

 Proabsidia and Zygorhyncus, the latter distinguished by the peculiar 

 form of the zygospores. 



In another paper the same author f discusses Tieyhemella and the 

 series of Absidise, all of which are distinguished by the formation of stolons. 

 He includes the genera Proabsidia, Lichtheimia, Mycocladus, Tieyhemella, 

 and Absidia. Lechtheimia is a new genus with 3 species, formerly 

 classified under Mucor, 31. corymb if era, 31. Reynieri, and 31. ramosa. 



Systematic Position of Monascus purpureus.J — S. Ikeno reviews the 

 work done on Monascus by Went, and more recently by Barker. The 

 latter received it as the " Samsu " fungus from the Malay Peninsula, 

 described its development, and as a result of his observations placed it 

 among the Ascomycetes, therein disagreeing with Went, who had classified 

 it among the Hemiasci. 



Ikeno has studied Monascus anew. He did not find any asci, but 

 followed the development of the spores by free cell-formation within a 

 sporangium. Barker's " Samsu " fungus does not agree with this 

 description and, according to Ikeno, should be removed from the genus 

 Monascus. 



Boletus subtomentosus.§— Ch. Ed. Martin writes a complete mono- 

 graph of this variable species as found in the neighbourhood of Geneva. 

 He describes 11 sub-species and includes among them B. chrysenteron. 

 He finds that the fungus varies according to habitat and that there is 

 no type form common to all regions. 



Infection Experiments with Claviceps.||— Rob. Stager experimented 

 with two species of this fungus : the well-known ergot of rye, C. 

 purpurea, which grows on a large number of grasses, and G. microcephaly 

 which is parasitic on Phraymites communis, Molinia cairidea, and Arundo 

 Galamayrostis. The latter differs anatomically from G. purpurea, and 

 the distinction was borne out by the infection experiments. As regards 

 Glaviceps purpurea, it was found that Anthoxanthum odoratum was easily 

 infected and made to produce the Sphacelia stage, the conidia of which 

 were used for infecting other grasses. Sclerotia were however rarely 

 developed. A large number of grasses were successfully infected by the 

 parasite from the rye, but Poa fertilis and P. annua were immune, as 

 also Lolium perenne, L. italicum, Glyceric/, fluitans, G. distans and 

 Bromus erectus. It was found that Bromus sterilis grew the funo-us 



* Bull. Soc. Mycol. France, xix. (1903) pp. 106-26. 

 t Tom. cit.. pp. 119-27 (1 pi.). 



% Ber. Deutsek. Bot. Ges., xxi. (1908) pp. 259-69 (1 pi). 



§ Mate'riaux pour la Flore Cryptogamique Suisse, II. fasc. 1 (1903) 39 i p (18 

 coloured pis.). || Bot. Zeit., lxi. (1903) pp. 111-5S. 



