170 
SUPPLEMENTARY NOTES ON THE ERYSIPHEI OF THE 
UNITED STATES. 
Bv M. C. Cooks, MA., AND C. H. PECE. 
Since our — published in the January number of this 
Journal (pp. 11-14), some ‘additional facts have come to our ison 
which render it necessary to communicate these supplementary no 
Podosphera Kunzei, Lev. Under this species we included "e form 
found on Spirea salicifolia. . E. C. Howe, of New uie timore, N.Y., 
in some dede since published refers a species of Podosphera “on leaves 
” to P. clandestina, Lev. In the absence of see e of the 
form Saad by Mr. Howe, we see no reason to revise our determination of 
this species. We have the same species on Cerasus from Dr. Curtis. 
Phyllactinia guttata, Lev., var. N.; we have this form on Quercus 
falcata, from Dr. ES found in Carolina. The form on Celastrus 
sc bee from Salem, Mass. (E. C. Bolles 
cinula spiralis, B. and C. ; Berkeley" s Introduction, p. 278, f. 64 a, 
we e — Tio rag Cartii on leaves of Vitis, and it seems to be 
described anew éodit the name of Uncin ula 
Bübieroos, 3-6 tins longer than the diameter of the meine pe 
rangia 4—6, ellipsoid, pedicellate, with 4—6 sporidia." On leaves of Vilis. 
Dntinnle intermedia, B. and C. On leaves of Ulmus alata,—Carolina. 
We have received this also ^ei Dr. Curtis, but it is necessary to examine 
n a fresher condition before we can determine satisfactorily "whether it is 
identical with the form included by us under U. Bivone 
rt la adunca. , Lev. The form on Willow is the ouly one we have 
ta, on leaves mit is not distinct from U. od exbh, as ges on 
Poplar leaves in E The following is his description, fr " om which 
we pen no satisfactory kal for the construction of a new species :— 
sporidia. ” On leaves of niu. —Fort Edward, 1868; New Baltimore, 
Uncinula Wallrothii, be ; Cooke's Handbook, n. 1915 ; s record 
by Mr. e Howe as occurring on leaves of Ampelopsis at New Balti- 
more, N.Y. 
Uncinula parvula, C.and P. This is very distinct from Uncinula polychala, 
B. and C., which is found also on Celtis, Not only is the mycelium ume 
nd more ‘evanescent, but. the conceptacles are | not half the diameter 9 
those in that spec rand far less numerous. 
H ypophyllous.- Dem effused, delicate, evanescent ; conceptacles 
aien , globose, minute; ; appendages simple, numerous, scarcely gw 
porangia elliptical, rostrate ; spo 
On leaves of Celtis occidentalis. pu tomehkee rag Y.«C. H. P. n. 189.) 
This species was detected by Mr. W. R. Gerard, who takes an active 
