E 
Pete er ae eee Yo, 
STANDLEY: SPECIES OF AMARANTHUS 509 
viscidulus is readily separated by its larger, rounded leaves, 
longer bracts, spicate rather than axillary inflorescence, and 5 
instead of 3 sepals in the pistillate flowers. 
In their original description of A. viscidulus, Uline and Bray 
cite also a cultivated specimen in the National Herbarium. 
This appears to be nothing more than a somewhat abnormal form 
of A. hybridus. 
AMARANTHUS ACUTILOBUS Uline & Bray, Bot. Gaz. 19: 320. 1894 
Euxolus emarginatus A. Br. & Bouché, Ind. Sem. Hort. Berol. 
1851; Linnaea 25: 297. 1853. Not Amaranthus emarginatus 
Salzm.; Uline & Bray, 1894. 
This was originally described as having come from Mexico. 
The authors do not cite the name of the collector, and it is probable 
that the description was based upon cultivated plants grown 
from seeds believed to have come from Mexico. In the herbarium 
of the Missouri Botanical Garden is a specimen collected by A. 
- Braun in 1857, in the Royal Botanical Garden at Berlin, where 
it is said to have escaped (‘‘verwildert”) from cultivation. No’ 
other collection than the original one has ever been reported from 
Mexico. Thellung* reports the species as adventive in Germany 
at Berlin, Dresden, and Mannheim, and in Austria at Vienna 
and Prague. 
Recently, while examining the Amaranthus material in the 
herbarium of the Missouri Botanical Garden, the writer found 
four sheets of a species which at first was not recognized. Upon 
examining the flowers it was soon apparent that the plants were 
Amaranthus acutilobus, although in general appearance they were 
unlike cultivated specimens of that species, having longer, less 
fleshy, more slender stems and smaller leaves. All four sheets 
are from southern Italy, one having been collected at Naples in 
1871 or 1872, and three at Gioja, Calabria, in 1871 and 1872. 
Upon one of the sheets from Gioja is a specimen of Amaranthus 
crassipes Schlecht., a species known only from the West Indies 
and peninsular Florida. This indicates that the material was 
carelessly prepared, for it is not probable that this species has 
been introduced in Italy. The occurrence .of A. acutilobus in 
Italy is of great interest, for it suggests a possibility that the 
*In Asch. & Graebn. Syn. Fl. Mitt. Eur. §: 282. 1914. 
