260 BOTANICAL GAZETTE [APRIL 
Sacc.4 and G. Ribis (Lib.) Mon. & Desm.’ The first of these 
he connects with Gnomonia veneta (Sacc. & Speg.) Kleb., which has 
uniseptate ascospores, and hence is not congeneric with the anthrac- 
noses, whose ascospores are not septate. In the case of G. Ribis, 
KLEBAHN claims to have demonstrated by infection experiments 
and by pure cultures that its ascogenous stage is a discomycete, 
which he has described as Pseudopeziza Ribis. It is very remarkable 
if conidial forms so similar as to be placed by taxonomists in the 
same genus should have ascogenous stages belonging to such different, 
distinct groups as the Pyrenomycetes and the Discomycetes. Miss 
STONEMAN (/.c.) in 1898, CLINTON® in 1902, VON SCHRENK and SPAULD- 
ING’ in 1903, SHELDON® in 1905 and 1906, and Scott? in 1906 have 
worked with organisms from various hosts which have usually passed 
under the name of Gloeosporium or Colletotrichum, and which are 
undoubtedly congeneric with the plants treated of in this paper. 
We may say, in the beginning, that neither of the names just 
mentioned is tenable for any of the plants to be considered here, as 
these names were originally applied to species belonging to other 
‘genera than those to which they are applied by Saccarpo and other 
recent mycologists. The name Glomerella, of SPAULDING and VON 
SCHRENK, will be used here, as it is the only one which we are abso- 
lutely certain at present belongs to this group of organisms. There is 
little doubt, however, that there are older valid generic names which 
have been applied to either the conidial or ascogenous stages of these 
4 KLE , H., Untersuchungen iiber einige Fungi imperfecti und die zuge- 
hérigen a II. Jahrb. Wiss. Bot. 41:515. 1905. 
s—————, Untersuchungen iiber einige Fungi imperfecti und die zugehorigen 
Ascomycetenformen. III. Zeits. Pflanzenkrank. 16:65. : 
® CuinTon, G. P., Apple rots in Illinois. Agr. Exp. Sta. Bull. no. 69. 1902. 
7 SCHRENK, H. von, and SpauLpinc, P., The bitter-rot of the apple. U. S. 
Dept. Agr., Bur. Pl. Ind., Bull. no. 44. 1903. 
* SHELDON, J. L., Concerning the identity of the fungi eg an anthracnose 
of the sweet-pea and the bitter-rot of the apple. Science N. S. 22:51. 1905. 
————, The ascigerous stage of Gloeosporium Psidii. dies N. S. 21: 
143. 1905. 
———, The ripe rot or mummy di f guavas. W. Va. Agr. Ex. Sta. Bull. 
no. 104. 1906. 
9Scott, W. M., The control of the apple bitter-rot. U.S. Dept. Agr., Bur. Pl. 
Ind., Bull. no. 93. 1906. 
