1179 
Aeaeia albida Delile. (Mimosaceae.) 44922. Seeds 
from the vicinity of Khartum, Egyptian Sudan. Pre- 
sented by Mr. P. G. Walsingham, Giza Branch, Ministry 
of Agriculture, Cairo, Egypt. A large, much-branched 
tree, native of tropical and northern Africa, and 
yielding a gum similar to gum arable. The leaves are 
eaten by goats, and the bark is used in curing leather. 
(Adapted from Oliver, Flora of Tropical Africa, vol. 
2, p. 339, 1871, and from Kew Bulletin Miscellaneous 
Information, Additional Series 9, Part 2, p. 288.) 
Aeaeia seyal Deli'le (Mimosaceae.) 44923. Seeds from 
the vicinity of Khartum, Egyptian Sudan. Presented by 
Mr. F. G. Walsingham, Giza Branch, Ministry of Agricul- 
ture, Cairo, Egypt. A small or medium-sized tree com- 
mon in tropical Africa north of the equator. It is 
one of the principal gum-yielding acacias in the Nile 
region. The gum, which flows freely from all wounds, 
is of a bright amber color, becoming white and brit- 
tle when thoroughly dry. It has a relatively high 
viscosity and strong adhesive power. (Adapted from 
Oliver, Flora of Tropical Africa, vol. 2, p. 351, and 
from Kew Bulletin Miscellaneous Information, Addi- 
tional Series 9, Part 2, p. 295-296.) 
Aeaeia spadieigera Cham. & Schlecht. (Mimosaceae.) 
Bull-horn acacia. 44914. Seeds from Zacuapam, Vera Cruz, 
Mexico. Presented by Dr. C. A. Purpus. "An interest- 
ing shrub or small tree, with spreading branches armed 
with thorns resembling the horns of a bull, and conse- 
quently called, together with its allies, bull-horn acacia. 
The thorns attracted the attention of early botanists 
from the. fact that they are usually hollowed out and 
inhabited by stinging ants which serve as body-guards, 
protecting the plant from herbivorous animals. The 
present species is very closely allied to A. eornigera 
of Linnaeus if not identical with that species. The 
hollow, indehiscent pods, terminating in sharp spines, 
enclose a number of hard seeds surrounded by a sugary 
aril which is much relished by cattle and other ani- 
mals." (W. E. Safford. ) 
Annona eherimola Miller. (Annonaceae . ) 44841. Cheri- 
moya. From Oran, Salta, Argentina. Presented by Mr. 
S. W. Damon. "Seeds of Annona eherimola from rather good 
fruit which I ate a few days ago. The trees which 
bore the fruit withstood, last winter, a temperature 
of about 15° Fahr." (Damon.) 
