148 f^ungi, Bacteria und Pathologie. 



branches arise from a single hypha one on each side of a septum. The 

 two branches grow upwards at right angles to the hypha which bears- 

 them, and twist round each other once or twice, the free ends swell up- 

 into club-shaped heads each of which now becomes cut off by a trans- 

 verse wall as a separate cell. The cells become very closely applied to- 

 one another, and soon the wall between them brcaks down and the two- 

 cells fuse The „sterile cell" of Baranetsky is larger and almost 

 straight, and the „ascogone" is longer and small, and coiled round the 

 sterile cell. After fertilization the ascogone puts out a Prolongation which 

 coils round the free apex of the sterile cell (or in some cases round 

 both the conjugating cells). This Prolongation becomes segmented and 

 from its segments short thick branches grow out, which form a dense 

 mass of ascogenous hyphae. The ends of these hyphae swell up into- 

 small rounded asci. 



The conjugating cells are uninucleate when quite young but both 

 are multinucleate at the time of conjugation. When fusion takes place a 

 considerable portion of the wall between the two cells breaks down, and 

 the nuclei and protoplasm become mingled. Doubtless a nuclear fusion 

 now takes place, but this was not determined with certainty. The nuclei 

 pass over from the „sterile cell" into the ascogone and later into the 

 Prolongation of the ascogone. Slender vegetative hyphae with numerous- 

 small nuclei are mixed with the ascogenous hyphae. 



In G. candidiis the process is somewhat different. Here the „sterile, 

 cell" consists of a central club-shaped hypha, round which the ascogone 

 coils in a close symmetrical Spiral. The two cells moreover do not 

 usually arise from the same hypha. After fusion the ascogone itselt 

 becomes segmented and sends out branches, the ascogenous hyphae. 



A third species G. setosiis was also studied, but this, though kept 

 in cultivation for eighteen mouths, only produced conidial fructifications. 



In conclusion the affinities of Gymnoascus are discussed ; and the 

 following series of forms is traced showing gradual increased complexity 

 in the structure of the fructification : 1. Endomyces decipiens, asci naked 

 and solitary; 2. Gymnoascus candidus, asci naked but aggregated in 

 dense masses; 3. Cteiiomyces, Eidamella, and other species of Gymno- 

 ascus, groups of asci enclosed in a loose Investment; 4. Aspergillus and 

 Penicillium, groups of asci enclosed in a wall of pseudoparenchyma, the 

 peridium : also Onygena in the Plectascineae. In Endomyces and Onygena 

 sexual Organs are unknown. A. D. Cotton. 



Hay, G. U.. New Brunswick Fungi. (Bull. Nat. Hist. Soc. 

 in B. XXI. 1903. p. 1 — 12.) 



Gives a list of 160 species additional to those recorded in Bulletin XIX> 

 Determinations were made by Farlow, Peck and Atkinson who' 

 append valuable notes. The value of fungi for food purposes is discussed,. 

 as also the Identification of edible and poisonous species. Two new 

 varieties of Cantharellus cibarius and one of Irpex fusco-violaceus are 

 recorded by Prof. Peck. D. P. Penhallow. 



Hennings, P., Einige neue japanische Uredineen. IV.. 



(Hedwigia. Bd. XLII. Beiblatt No. 3. p. 107—108.) 



Es werden folgende Arten beschrieben: Uromyces tosensis P. Henn. 

 auf Commelina communis, Urom. sakavensis P. Henn. auf Solidago' 

 virgaurea, Puccinia angelicicola P. Henn. auf Angelica Migueliana, Pucc. 

 Yokogurae P. Henn. auf Carex sp., Melampsora Yoshinagai P. Henn. auf 

 Wikstroemia japonica (nur Uredo), Uredo Dioscoreae quincpielobae P. Henn. 

 auf Dioscorea quinqueloba, Uredo Sojae P. Henn. auf Glycine Soja. — 

 Puccinia sphaeroidea P. Henn. auf jussiaea sp. aus Vorder-Cali- 

 iornien, deren Beschreibung gleichfalls hier gegeben ist, dürfte aus 

 Versehen unter die japanischen Arten gerathen sein. 



Dietel (Glauchau). 



