THE CULTIVATED ANONAS. 
119 
previous to the freeze of 1886, in Manatee. Only a few isolated 
specimens have been grown and these in the extreme south of 
the peninsula and on the Keys. 
Martius® describes a new species from Brazil under the name 
Anona marcgravii, to which he refers Araticu ponhe ; but admits 
that the difference between this species and Anona muricata is 
exceedingly slight. There is probably little doubt that this 
species is merely a variety of Anona muricata as later botanists 
do not appear to have collected any specimens of Anona marc- 
gravii. 
Anona glabra L. (§ Guanabani) PL XL (Anona palustris L., A. 
laurifolia D'unal.) 
A shrub or tree, sometimes exceeding 7.5 meters in height, 
of spreading habit; leaves oblong, oval, or obovate, 10 to 18 cm 
long, glabrous, coriaceous, obtuse or abruptly narrowed at the 
base, apex acute or shortly acuminate, dark-green above, paler 
beneath, petioles 1 to 2 cm long, flowers solitary, nodding, petals 
six, in two series, yellowish-white outside, glabrous, concave, 
fleshy, the exterior 2.5 to 4 cm long, exceeding the interior ones, 
acute, scarcely obtuse, marked with red near the base inside, 
the interior petals, except a narrow, transverse, yellowish band 
near the base, red within. The fruit is heart-shaped, 6 to 12 
cm long, regular, moderately smooth, undulate, yellowish or 
brownish; flesh yellowish, scarcely edible containing numerous 
pale-brown seeds. 
The mamon, recently used as a stock for the cherimoya, 
custardapple, and soursop, was first described by Piso and 
Marcgrav from Brazil under the name Araticu pana(55), and has 
since been mentioned by many travelers and botanists. It has 
a wider natural distribution than any other species in the genus, 
as it extends throughout the American tropics to southern Flor- 
ida, and is also found in a large part of tropical Africa. 
The mamon, like its cultivated congeners excepting the cheri- 
moya, was known to prelinnean botanists, and the specific charac- 
ters distinguishing the species have long been well known, but 
although St. Hilaire has pointed out the similarity between 
Ano7ia palusU'is L. and Anona glabra L., the synonymy of these 
species is not yet recognized by all writers on anonaceous plants. 
From personal observations and by comparisons between the 
species known as Anona glabra in Florida and introduced plants 
of Anona palustris from the West Indies, the writer is of the 
* Fl. Brasil. 1 3 :6. 
