1898 } THE DEVELOPMENT OF SOME ANTHRACNOSES 81 
different hosts. Unlike G. venetum the acervuli are not confined 
to spots on the host, but spread indefinitely over the stem or 
leaves. From the form of the conidia I propose the name G/ao- 
sporium naviculisporum, with the following diagnosis : 
Acervuli erumpent-superficial, 60—240p in diameter, not con- 
fined to definite areas on the host. Basidia elevated, hyaline, 
30-354 in length. Conidia fusoid-elliptical, straight or slightly 
curved; ends acute, hyaline, continuous, measuring 12-15 X 6p; 
oozing out in deep pink masses on stems and leaves of Rubus. 
Harnesia Rupr (West) Sacc.® (figs. 10, 52, 52); on Rubus. 
Another fungus of the raspberry is described by Saccardo 
under the name Hainesia rubi (West) Sacc. (Syll. 3: 699). This 
species has been collected in various localities about Cornell 
University. It is found abundantly on the leaves of Rubus, and 
is associated with Ceoma nitens (xcidial stage of Puccinia Peckt- 
ana), although this fungus does not seem essential to its exist- 
ence, since it will grow on artificial media in pure culture. The 
acervuli are subcuticular, soon subsuperficial, on both upper and 
lower sides of the leaf. At maturity the conidia ooze out in 
pale pink heaps. 
In section the pustule has much the same appearance as that 
of G. naviculisporum, but the conidia have not the pronounced 
navicular form found in that species. The colonies have a 
growth strikingly similar however to that species. There is the 
Same abundant growth of white mycelium which gives the colo- 
nies a uniform undifferentiated appearance. The species 1s fur- 
6The species which Miss Stoneman has studied here is identical with that 
described by Ellis and Everhart as Gleosporium rubi (Jour. Mycol. 4:52. 1888) asso- 
ciated with Ceoma nitens on Rubus from Mississippi. There has been no opportunity 
to compare this material with the European specimens, but since their habitat 1s 
identical (association with Uredinez on Rubus), the difference in measurement of the 
Spores, which is not very great, : 
of the species, if they are generically the same. The genus Hainesia : 
branched basidia. This character is certainly not common in the American ape: 
mens which I have examined. While there is a strong probability that the arin 
— Earopean specimens are the same species, it is not possible at present to spea 
with certainty.—G, F, A. : 
