XII, C, 1 
Merrill: Koordersiochloa Javanica 
69 
Australian material representing Amphihromus neesii Steud., 
for which I am indebted to Mr. J. H. Maiden, director of the 
Botanic Garden, Sydney, N. S. W., and a specimen in the Buiten- 
zorg Herbarium, collected by Reader, shows that this genus is 
radically different from Koordersiochloa in many characters, in- 
cluding its much smaller spikelets, the flowering glumes awned 
from about the middle of the back, the awn prominently geni- 
culate or bent. The awns are, moreover, free and spreading, not 
twisted together in the manner so characteristic of Koordersio- 
chloa. In Amphibromus the callus, while prominently bearded, 
is much shorter than are the joints of the rachilla. The alliance 
of Koordersiochloa with Amphibromus was originally deter- 
mined from the description of the latter genus, and now that 
specimens are available for purposes of comparison, I am still 
of the opinion that this is the correct disposition of the new 
Javan genus. 
