330 
SUMMARY OF CURRENT RESEARCHES RELATING TO 
Mineral Food-Material of Fungi.* * * § — M. E. Guntlier confirms tlie 
conclusions of Molisch and Benecke. With a high concentration of the 
mineral salts, the rapidity of growth is retarded. For a favourable 
nutrient solution for Fungi, a potassium salt, a magnesium salt, a sul- 
phate, and a phosphate are essential. Neither the potassium nor the 
magnesium can be replaced by other elements. Salts of copper, while 
poisonous when present in large quantities, promote growth when very 
dilute. 
New Species of Mucor.f — In addition to the species previously 
enumerated, Herr W. Schostakowitsch describes the following new 
species of Mucor from Siberia : — M. irkutensis, M. heterosporus sibiricus, 
M. de Baryanus, and M. angarensis. 
New Genera of Fungi. — Together with a very large number of 
new species of ascomycetous Fungi, mostly parasitic or saprophytic, 
from Java, Prof. O. Penzig and Sig. P. A. Saccardo + describe the 
following new genera : — 
Bteridiospora g. n. Perithecia subsuperficialia, globoso-conica, car- 
bonacea, nigrantia, ostiolo papillato; asci paraphysati, octospori ; sporidia 
oblonga, bilocularia, hyalina ; membrana hyalina, mucosa, deorsum in 
alam spathulatam producta, obvoluta. Among Hyalodidymae. 
3Ielchioria g. n. Perithecia in caespitulos superficiales botryose 
aggregata, sed discreta, globulosa, papillata, nigra carbonacea, stromate 
albo molliusculo interposito ; asci oblongo-fusoidei, octospori, obsolete 
paraphysati ; sporidia fusoidea, 1-septata, hyalina. As the last. 
Hormosperma g. n. Perithecia superficialia, atra, globulosa, papillata, 
exigua, setulosa ; asci cylindracei, aparaphysati, suboctospori ; sporidia 
cylindricea, moniliformia, typice 8-locularia, subhyalina, loculis globoso- 
cuboideis, facile secedentibus. Among Hyalophragmias. 
Boerlagella g. n. Perithecia superficialia, globulosa, setosa, nigra, 
typice byssiseda ; asci elongati, octospori, paraphysati ; sporidia elongata, 
majuscula, pluriseptato-muriformia, hyalina. Among Hyalodictyae. 
Leptosporella g. n. Perithecia superficialia, carbonacea, globosa, 
papillata, atra, glabra ; asci elongati, 8-spori, sporidia cylin<irico-vermi- 
cularia, genuine v. spurie pluri-septata, hyalina. Among Scolecospone. 
Bactrosphseria g. n. Perithecia superficialia, verticaliter elongato- 
cylindracea, sursum angulosa verruculosa, membranaceo-carbonacea, 
nigra, ostiolo sulcato-radiato ; asci cylindracei, aparaphysati, 8-spori ; 
sporidia bacillaria, pluriseptata, subhyalina, ascum subsequantia. As 
the last. 
Prof. O. Penzig § found also in Java the type of a new genus of 
Tuberculariese, which he defines as follows : — 
Amallospora g. n. Sporodochia verruciformia v. tuberculata, sessilia, 
mucilaginosa, hyphis radiantibus subsimplicibus tenuibus, muco ob- 
volutis ; conidia in hypharum apice solitaria, primum simplicia, dein 
transverse pluriseptata, ac proliferatione laterali aucta ; maturitate in 
manipulos quosdam conjuncta, incoloria. 
* Beitr. z. mineral. Nahrung d. Pilze, Erlangen, 1897. See Bot. Ztg., lv. (1897) 
2 te Abth., p. 379. Cf. this Journal, 1895, p. 545. 
t Ber. Deutsch. Bot. Gesell., xv. (1897) pp. 471-4 (1 pi.). Cf. this Journal, 
1897, p. 419. % Malpighia, xi. (1897) pp. 387-413. 
§ Tom. cit. pp. 461-4 (1 pi.). 
