430 
Horne and Williamson .— The Morphology and 
and terminally on branches, yellow brown, thick-walled, circular or ovoid, 
12 by i o /i to 40 by 34 /x. 
Eidamia catemdata , n. sp. 
Mycelium hyalinum, septatum, ramosum, 3-11 4 latum ; conidiophora 
erecta, simplicia vel ramosa, septata ; sterigmata gracilia, ad basim turgidius- 
cula, 8-16 4 longa inferne, 1-2-5 /x lata ; solitaria vel gregaria turn ad 
hypham simpliciam turn ad apices ramorum conidiophoreorum vel gregaria 
ad apicem rami brevis turgidi sita; conidia catenulata (circa centena), flava 
anguste vel late elliptica, utrinque acuta, 4-7 x 2-3-5 interdum ad 
apicem sterigmatis aggregata ; macrosporae hyalinae, solitariae vel binae ad 
apicem rami brevis turn intercalaris, pachyclermaticae, subglobosae, 7-5 x 
8- 5 /x, vel pyriformes, 14 x 10—18 /x. 
Hab. in li gno exsiccato quercus. 
4 
Eidamia viridescens , n. sp. 
Mycelium hyalinum, septatum e hyphis ramosis 7-11 4 latis com- 
positum ; conidiophora ramosa, septata ; sterigmata lageniformia, 8-20 /x 
longa inferne, 1-5-3 f 1 l a1:a 5 solitaria vel gregaria, praeter conidiophori 
ramos disposita ; conidia aggregata vel breviter catenulata, flavida aut 
viridia, subovoidea, 4x5^, vel ellipsoidea, 2-5 x 4 /x, vel sphaerica, 4-5 4 diam.; 
macrosporae hyalinae, turn solitariae ad apices ramorum lateralium, turn 
intercalares, pachydermaticae, subglobosae, 11x8 fj, vel ovoideae, 13 x 
9- 12 y. 
Hab. in malis putridis. 
Physiological Characters . 
3 . The approximate temperature optima are as follows : E. acremonioi- 
des , 20 0 C.; E. viridescens , 25 0 C. ; E. catemdata , 30° C. 
2. Whereas E. acremonioides produced growth of a relatively feeble 
character the remaining species responded freely to a wide range of nutritive 
conditions. The growth-rate of E . viridescens is much greater than that of 
E. catemdata when the species are grown at their respective temperature 
optima, other conditions being constant. 
3. E. catemdata and E . viridescens hydrolyse starch, invert sucrose, 
decompose protein and asparagin with evolution of ammonia, and ferment 
certain sugars with acid production in the presence of protein. In these 
respects they differ markedly from E. acremonioides . 
4. In the presence of carbohydrate, E. viridescens produces a volatile 
compound with an odour recalling that of coco-nut oil. 
5. No growth was obtained on cellulose. 
6. Unlike E. acremonioides the remaining species are able to utilize 
soluble pectin. 
