NOTES ON THE ERYSIPHACEAE 99 
U. cLanpEstiNa (Biv. Bern.) Schroeb. (Monograph, p. 97) 
Syn. add: U. clandestina Bivon. form. n. Japonica P. Henn. 
Engler’s Bot. Jahrb. my 240! 1500 
Flosts, add: Ulmus parvifolia. 
The “ forma Japonica” of Hennings (/. c.) from Tokyo: Botan. 
Garten auf lebenden Blattern von Ulmus campestris Sm. var. vul- 
garis PI, (Kusano, no. 155, Oct. 11, 1899) is described as follows : 
“Die Form ist durch Grossenverhaltnisse von der typischen Art 
etwas unterschieden. Die Perithecien sind 75-85 4 gross mit meist 
20 an der Spitze hakenformig gekriimmten 60-80 ” langen An- 
hangseln. Die 2~3 Asken jedes Peritheciums sind eiformig 40- 
60 x 40~5 5 #4, mit 2-3 elliptischen 19-25 x 14-18 » grossen, gel- 
blichen, granulierten Sporen.”” There are no characters given here 
of sufficient importance to justify the separation in any way of the 
Japanese plant from the U. clandestina of Europe and Algeria. I 
have seen several specimens of U. clandestina from Japan, and 
have found them identical with European examples of the species. 
It may be noted that in Hennings’ description, the measurement of 
the spores is given as “19-25 x 14-18”; in a specimen (now in 
the Kew Herbarium) sent to me by Dr. Hennings ; however, the 
Spores measure up to 30 p long. 
U. necator (Schwein.) Burr. (Monograph, p. 99) 
Exsicc. add « Shear, New York Fungi, 141 (in herb. Jaczewski). 
Distrib. ada: Europe, Germany, N. America, U. S., Georgia 
(74). S. America, Chili (37). 
Hosts, add» Vitis cordifolia (84). 
The interesting discovery at Geisenheim in Germany of the 
©Ccurrence of perithecia of U. necator—hitherto known in Europe 
only from France—has been made by Dr. G. Liistner, who gives 
(41) the following account: “Die von mir aufgefundenen Peri- 
thecien wurden an einer an einem Geiztrieb gebildeten Traube, 
an Welcher gleichzeitig auch conidienbildendes Mycel vorhanden 
ha 15 November angetroffen ; sie sassen an den Beerenstielen 
he Tuppen beisammen.”’ Dr. Liistner kindly sent me a _micro- 
es © mount of some of the perithecia. These latter, which un- 
wdly belong: to U. necator, are immature, some of the appen- 
being still uncolored and not yet showing the uncinate 
