SAFFORD—CLASSIFICATION OF ANNONA. 25 
SPECIMENS EXAMINED—Continued. 
PANAMA: Hospital grounds at Ancon, February 13, 1911, Pittier 2724 
(U. 8. Nat. Herb., no. 676859). 
Brazit: Without definite locality, Sellow 1209 (Berlin Herb.). 
LocaL NAMES: Bosch-zuurzak, “ Wild soursop” (Surinam). 
From this species Annona muricata L. differs 
in its cordate, acuminate outer petals and in its 
fruits. The close relationship between Annona 
sphaerocarpa and A. montana is apparent from 
the accompanying illustrations. One of the 
chief differences between the two species is the 
greater size of the leaves of A. sphaerocarpa. 
Pittier’s no. 2724, collected in the hospital 
grounds at Ancon, on the Isthmus of Panama, 
is here referred to this species. The protu- 
berances on the fruit are smaller than those 
on the fruit of A. montana and in some cases 
are nearly absent. Should the two species 
prove to be identical the name Annona mon- 
tana Macfad., being the earlier, must prevail. 
If A. sphaerocarpa should prove to be identical 
with A. marcgravit Mart., and distinct from 
A. montana, it must take the former name, 
which was given one year previously. The 
three species are undoubtedly closely related. 
EXPLANATION OF PLATE 8,—-A, immature fruit of 
Annona montana, from photograph made at Coamo 
Springs, Porto Rico, June 29, 1901, by G. N. Collins 
(no. 2879). B, fruit of A. sphaerocarpa, from photo- 
graph made in Paramaribo, September 29, 1912, by 
Dr. J. Kuyper. 
Annona marcgravii Mart. 
Anona marcgravit Mart. Fl. Bras, 137: 5. 1841. 
Annona muricata Vell. Fl. Flum. 239. 1825. 
Atlas 5: pl. 126. 1827, not L. Sp. Pl. 536. 
1753. 
Section Euannona. A tree of moderate size, 
the ascending branches forming a dense oblong 
crown; bark grayish white, smooth, or lightly 
furrowed; branchlets glabrous, pale brown, 
bearing numerous inconspicuous pale brown 
lenticels; leaves usually obovate-oblong and 
acute at the base, sometimes subelliptical and 
rounded at the base, coriaceous at length, above 
deep green and very glossy, as if varnished, 
paler beneath, 8 to 25 cm. long by 4 to 9.5 cm. 
broad, shortly and usually obtusely acuminate; 
petiole 4 to 10 mm. long, terete and grooved 
Fic. 36.—Leaves and flower of An- 
nona sphaerocarpa. Scale 3. 
above; midrib prominent beneath; lateral nerves (about 10 on each side) 
slightly curved and connected by a network of anastomosing veins; peduncles 
solitary or geminate, if the latter, usually one only persisting and bearing fruit, 
glabrous, 12 to 25 mm. long, with a small broad semiamplexicaul acutish bracteole 
