ON THE LIFE-HISTORY OF ÆCIDIUM BELLIDIS. 511 
Because Fries and Schweinitz were misled by external resem- 
blance to refer this plant to Spheriacei (since they give no indi- 
cation of having observed its structure under the microscope), it 
cannot be contended that this is not the species of Schweinitz. 
When it is remembered that the free globose spores are identical 
in size and form with the spore-joints in many species of Hypocrea, 
some excuse may be made for the supposition that it might be a 
species of Hypocrea. I do not know that any except the original 
specimens have ever been found ; and it is not surprising that the 
fortunate possessors of a single cup or two should have hesitated 
to cut in pleces and examine its structure as I have ventured to 
do, in the hope of setting the question at rest as to what is the 
Spheria pocula of Schweinitz. 
DESCRIPTION OF PLATE XLVII. 
Fig. 1. Cups in situ, natural size; 2, 3. Magnified bunches; 
4. Magnified section. All after Schweinitz. 
. Section of cupule, magnified 12 times. 
. Section of hymenium, further magnified. 
. Section of tubes, showing basidia lining them. 
. Arrangement of basidia forming walls of tubes. 
. Separate basidia, with spicules. 
10. Spores. Figs, 8, 9, & 10 x 500 diameters. 
Norr.—Since the above was in type I have discovered that 
Berkeley and Curtis, in the fourth volume of the ‘ Proceedings 
of the American Academy of Arts and Sciences’ (1860), describe 
this species anew as Polyporus Pocula, Berk. & Curt., but the 
description appears always since to have been neglected, and 
even to have passed from the memory of the Rev. M. J. Berkeley 
himself. 
SOM MND c 
On the Life-history of ZEcidium bellidis, DC. By Cnanrxs B. 
Prownrc'tr, M.R.C.S. (Communicated by W. T. THISELTON 
Dxzz, C.M.G., F.L.S.) 
[Read March 20, 1884.] 
Tur Acidium upon the common Daisy (Bellis perennis, L.) has 
hitherto, both by British and continental botanists, been regarded 
as a mere variety of ZEcidiwm compositarum, Mart. During the 
past four months this fungus has been made the subject of experi- 
mental culture, by which it has been demonstrated that this view 
