94 
J0TTBNAL OF THE EOYAL HOETICTJLTUEAL SOCIETY, 
Baron Thuemen, in his enumeration of the Fungi of the Yine in 
Austria, does not mention a single species of this group as 
occurring on V. vinifera , and only Septoria vilicola , B. & C. (our 
Sacidium viticolum), on leaves of the American Yine. 
Ascochyta ampelina , Sacc. This species is described by Saccardo 
in “Michelia,” part ii., p. 168, and Professor Saccardo has also 
favoured us with specimens and drawings. It forms small whitish 
spots on the leaves, and also on the twigs of V. vinifera in Italy. 
The spots are surrounded by a broad purplish-brown margin, and 
the perithecia are nearly of the same size as those of Phyllosticta 
viti's, the spores are almost fusiform, rather obtuse at the extre¬ 
mities and uniseptate *01-'012 x *003~'0035 mm., acquiring an 
olivaceous tinge. When this species occurs on the twigs the 
perithecia attain nearly double the dimensions of those on the 
leaves, and the spores also are somewhat larger (-015 x *003 mm). 
At present it has not been recorded out of Italy. 
Ascochyta rufomaculans , Berk. This was described and figured 
by the Bev. M. J. Berkeley, in the Gardener s Chronicle for 1854, 
(p. 676), under the name of Septoria rufo maculans. It was said to 
form orbicular spots of a sienna-brown, preserving constantly a 
definite outline upon the berries and not upon the leaves. The 
spot separates readily from the subjacent pulp, in consequence of a 
copious crop of mycelium, the threads of which form radii of 
a circle. The surface is rough with little raised orbicular reddish 
perithecia arranged concentrically. The spores vary in size from 
•02 mm. in length. In age the perithecia fall away leaving a 
little aperture, the border of which is often stained black. 
XY.—Pern Sports. By T. Mooee, F.L.S., Curator of the 
Chelsea Botanic Garden, 
The number of Fern sports now known in our gardens is amazing, 
and though a considerable proportion of them have been produced 
under the hand of the cultivator, yet a very large number have 
been found in natural habitats, and have been produced in what 
would be called a “wild” condition. This is especially true of 
British Ferns, which are probably better known than those of most 
other countries owing to the extensive taste for them which exists 
