1915] CURRENT LITERATURE 243 
Arthur on Comptonia asplenifolia Banks. SPAULDING” has now succeeded in 
infecting this host with aecidiospores of Peridermium pyriforme from Pinus 
silvestris (confirming CLINTON’s work), P. ponderosa Dougl., P. Taeda L., 
and P. austriaca Link. On account of its eis frequency in nurseries, 
this fungus-is becoming economically important. 
Jacos% in a short note reports that pea of Puccinia Poiygoni- 
amphibii Pers. from Polygonum amphibium L. infected Geranium pratense L. 
(confirming the result of KLEBAHN), G. pusillum Burm., and G. pyrenaicum 
Burm. Among the species not infected was Geranium phaeum L., which 
KLEBAHN had successfully infected with this rust. The aecidiospores from 
these cultures were sown on various species of Polygonum, but only P amphi- 
bium was infected. Teleutospores of Puccinia Polygoni Alb. amd Schw. from 
Polygonum Convoloulus L. infected only Geranium columbinum L., with a 
doubtful infection on G. molle L. which was successfully infected by KLEBAHN. 
Aecidiospores from G. molle reinfected only Polygonum Convolvulus. Uredo- 
spores from Uromyces Kabatianus Bubak from G. pyrenaicum infected G. 
pyrenaicum, G. maculatum L., and G. pusillum Burm., but not G. silvaticum 
L. which is the principal host of Uromyces Geranii. These cultures furnish 
further evidence in justification of BUBAK’s separation of U. Kabatianus from 
U. Geranii. CRUCHET* reports that teleutospores from Polygonum Bistorta L. 
S 
Imperatoriae Cruchet) derived from the culture reinfected Polygonum Bistorta. 
The rust is described as Puccinia Imperatoriae-mamillata. CRUCHET was 
led to suspect this connection by the fact that Peucedanum “Ostrailion bears, 
in addition to Aecidium Imperatoriae, a micr se mene teleutospores 
resemble those of Puccinia mamillata Schroter on Polygon 
ISCHER'S in two short papers reports further depots with Urmoyces 
caryophyllinus (Shrank) Winter and Puccinia Pulsatillae Kalchb. which is a 
micropuctinia of the type of P. Anemonis-virginianae Schwein. inhabiting mem- 
bers of the Ranunculaceae. In his former work’ Fiscuer found that aecidio- 
2 SpauLpING, P., Notes on Cronartium Comptoniae. Phytopathology 3:62, 308- 
310. 1913. 
3 Jacos, G., Zur Biologie Geranium-bewohnender Uredineen. Mycol. Centralbl. 
3:158-159. 1913. 
™ CRuCcHET, P., Ponape a étude des Urédinées. Etude biologique et 
description de Ricsbaka Imperatoriae-mamillata, nov.sp. Mycol. Centralbl. 3: 209-214 
Igt3. 
R, Ep., Beitriige zur Biologie der Uredineen. 4. Weitere Versuche iiber 
die Sree bation des Uromyces caryophyllinus (Schrank) Winter. My col, Centralbl. 
3°145-149. 1913. 
idem. 5. Puccinia Pulsatillae Kalchb. (Syn. P. de Baryana Thiim.) 
und Theoretinclies iiber die Specialisation. bid. 214-220. 1913. 
6 Rev. Bor. GAz. §6:237. 1013- 
