REPORT OF THE BOTANIST. 115 
UsTILAGO UTRICULOSA Zw. 
A form of this species was found in Forestburgh, having 
the spores rather larger than usual and their reticulations 
smaller and less distinct. Itinhabits Polygonum sagitta- 
tum. Nine species of this genus are now known to occur 
in the State. They are injurious to the plants they attack 
and are worthy of careful study. To facilitate the identifi- 
cation of the species, the following analytical synopsis and 
list of host plants is subjoined : 
2, Spores produced in the leaves. only 27... ..6. 2. case cwc ccs sns oc b. 
a. Spores produced in the flowers, fruit or ovaries .............. C. 
b. Spores produced in suborbicular swellings or blotches... = Erythronii. 
bb: Spores: Producediim lonpvlinesz (och oc) ie ate ee sic\nvei sis ae Ose re longissima. 
G, Spores intensely black/in the mass ~.. 0. 0.52210 sles oe cee d. 
c. Spores black, generally tinged with brown .......... ........ a 
C1 opores black. tinged ywiths purploleisrstacreis oto. «11s c1<)cieic/oiemieisteltetels utriculosa. 
de mba bitin oy Jun cue, (5/5. eicte snc carers aseeicveleiicle.s siaislsjeisvabes ese ie Junci. 
ai, LAE oyhiuiys) OTE ao gee bus macs dons Dono OD OOD OELOT obec urceolorum. 
e. Place of spore formation, much swollen or distended... .... Maydis. 
e. Place of spore formation, not much swollen.................. fe 
f. Generally affecting but few of the ovaries ............... Montagnei. 
f, Generally affecting whole spikes or panicles..... Bae Siteeve tars g. 
g. Spores smooth, .0002 inch in diameter.............. 5........ Carbo. 
g. Spores rough, .0004inch in diameter.....................0005- Syntherisme. 
Ustilago Erythronii Clinton. Inhabits Erytbronium Americanum Sm. 
Ur longissima Jud. Glyceria aquatica Sm. 
U. utriculosa Jul. Polygonum (several species). 
Uf: Junci Schw. as Juncus tenuis Willd. 
U. urceolorum Twi. : Carex (several species). 
U. Maydis Cd. af Zea Mays L. 
Wh Montagnei Twi. sc Rhynchospora alba Vahl. 
U. Carbo Tul. ;) j re aaa oo Vill., etc. 
U. Syntherisme Schw. € Cenchrus tribuloides Z. 
T have seen U. utriculosa on Polygonum Pennsylvanicum 
and P. sagittatum. In Europe it occurs on other species. 
U. urceolorum is found with us on Carex Pennsylvanica 
and C. umbellata. In Europe it attacks other species. U. 
Maydis Cd. is the same as U. Zee Schw., and U. Carbo Tul. 
equals U. segetum Ditm. U. Syntherisme is said to occur 
also on Digitaria and Andropogon. 
In closing this report, grateful acknowledgments are ren- 
dered to C. F. Austin, Esq., for aid in the determination of 
Hepatice, and to H. Willey, Esq., for aid in the determination 
of lichens, and to all the botanists whose names appear in the 
preceding pages, for their kind codperation in the investiga- 
