694 SUMMARY OF CURRENT RESEARCHES RELATING TO 



Saccardo, P. A. — Le relique dell' Erbario micologico di P. A. Micheli. 

 [A list of the funsji of Micheli's herbarium.] 



Bull. Soc. Bot. Ital.,\. (1904) pp. 221-32. 

 Saito, K. — Tieghemella japonica sp. n. 



[Morphological account of a new mucor obtained from the floating spores in 

 a brewing cellar.] 



Journ. Coll. Set. Imp. Univ. Tokyo, xix. (1904) 8 pp. (1 pi.). 



Shear, C. L. — The black Fungi. 



[Popular account of some Pyrenomycetes in America.] 



Plant World, vii. (1904) pp. 172-4. 



Spaulding, Perley — Two fungi growing in holes made by wood-boring insects. 



[The fungi were Flammula mpineus and Claudopus nidulans. They grew on 



logs of Pine.] Beport Miss. Bot. Garden, xv. C1904) pp. 73-7. See 



also Bot. Centralbl, xcvi. (1904) pp. 119-20. 



Starback, Karl — Ascomyceten der ersten Regnellschen Expedition, iii. 



[The list of Discomycetes and Pyrenomycetes includes several new species.] 



Arkivfiir Botanik, ii. No. 5, 20 pp. (2 pis.). 



Young, A., & W. J. Young — Garversuche mit Presssaft aus obergariger Hefe. 

 [Research on fermentation processes.] 



Ber. Deutsch. Cliem. Ges., xxxvii. (19041 p. 1052. See 

 also Aim. Mycol., ii. (1904) p. 36. 



Lichens. 



Alvthin, Nils — Bidrag tell kannedom om Skanes lafflora. 

 [A list of Lichens from Scandinavia.] 



Arkivfiir Botanik, ii. No. 6 (1904) 30 pp. 



Britzelmayr, M. — Tiber Cladonien-Abbildungen. 



[An account of the published drawings, photographs, etc., of the different 

 species of CladoniaJ] Hedicigia, xliii. (1904) pp. 401-13. 



Steiner, J. — -Flechten, auf Madeira und den Eanaren gesammelt von J. Born- 

 rnuller in den Jahren 1900 und 1901. 



[A list of species with their habitats, with descriptions of Pyrenopsis Palmana 

 and Us7iea submollis, sp. n.] 



Oesterr. Bot. Zeitschr., liv. (1904) pp. 333-6. 



Mycetozoa. 



Nuclear Changes in the Plasmodium of Myxomycetes.* — J, 

 Proweizek finds in the plasmodium of Physarum a nucleus rich in 

 chromatin with a dark-staining body. At certain stages this body 

 moves to the periphery of the nucleus, and passes out into the sur- 

 rounding protoplasm, leaving a clear, somewhat empty nucleus behind. 

 He discusses the nature of these inner dark bodies, and compares the 

 structure of this nucleus with that of other organisms. He gives an 

 account of nuclear fusion in the plasmodium. Such fusion may or may 

 not have a sexual signification, but he thinks that sexual fusion does 

 take place, as in Plasmodiophora, before spore-formation. 



Schizophyta. 

 Schizomycetes. 



Etiology of Rat-Plague and other Infectious Rat Diseases .t — 

 E. Klein, in a report on this subject, suggests that there are at least two 

 definite types of B. pestis — viz. (1) a virulent type, bred in the human 



* Oesterr. Bot. Zeitschr., liv. (1904) pp. 278-81. 



t Bep. Med. Off. Local Government Board, 1902-3, pp. 399-420. 



