SAFFORD—CLASSIFICATION OF ANNONA. 89 
LocaL NAMES: Araticii mirim, Cuyabé (according to Endlich); Aratici do 
campo, southern Brazil (according to St. Hilaire). 
Annona cornifolia St. Hil. is closely related to A. spinescens Mart. which 
grows in the low regions subject to inundations called ‘“alagadisso,” on the 
river San Francisco, near Joazeiro, in the Province of Bahia. The latter 
differs, however, in having spinescent branches and obtuse leaves, these glaucous 
rather than hoary white beneath, with the midrib and nerves of the same 
color as the rest of the under surface and less pilose, the nerves not so nearly 
parallel, and in having the flowers somewhat larger, . It is also very closely 
related to Annona nutans R. E. Fries. 
EXPLANATION OF PLATN 20.—Photograph of specimen in the De Candolle Herbarium 
(from type collection). 
. Annona nutans J. E. Fries. 
Anona nutans R. E. Fries, Bull. Herb. Boiss. II. 4: 1171. 1904. 
Anona cornifolia Morong, Ann. N. Y. Acad. 7:47. 1892, not A. cornifolia 
St. Hil. 
Anona spinescens var. nutans Tt. E. Fries, Vet. Akad. Handl. Stockholm 
84°: 43. 1900. 
Section Gamopetalum. A low shrub with slender erect stems and short straight 
ascending branches, rufous-pubescent at first, at length glabrate, longitudinally 
striate and pale brown with small inconspicuous pale brown lenticels; typical 
leaves broadly ovate to obovate or elliptical, rounded or obtuse and mucronulate 
at the apex, 3 to 5 em. long and 2.5 to 3.2 cm. broad, membranaceous or sub- 
coriaceous, quite glabrous above, glaucous and glabrous beneath except along 
the midrib and lateral nerves, these usually pale rufous or fulvous, clothed when 
young with scant straight appressed minute reddish hairs, at length glabrate; 
lateral nerves about 10 on each side; petiole about 2 mm. long, grooved above, 
appressed-pilose like the midrib when young, at length glabrate; leaves at the base 
of the branches sometimes emarginate or retuse at the apex, obtuse, rounded, 
or sometimes acute at the base; peduncles solitary or geminate, extra-axillary, 
usually opposite a leaf, or subterminal by the abortion of the stem or branch be- 
yond them, with a ferrugineous-tomentose scalelike bracteole at the base and a 
similar one near the middle, the latter sometimes reduced to a tuft of floccose 
hairs or even wanting; when geminate the pair sometimes subtended by a 
sessile suborbicular leaflike bract, straight or recurved near the extremity, 2.5 
to 4 cm. long, at first clothed with appressed ferrugineous hairs, at length glab- 
rate; calyx gamosepalous, with the triangular lobes terminating in linear points, 
clothed on the outside with ferrugineous silky hairs; corolla resembling that of 
Annona cornifolia, depressed-hemispherical in bud and about 1.5 em. in diameter, 
finely ferrugineous-pubescent on the outside, bowl-shaped when expanded and 
about 2.3 cm. in diameter, gamopetalous, 6-lobed, composed of 3 narrow lobes 
corresponding to inner petals, alternating with 3 broad lobes overlapping 
their edges, pale yellow, spotted with purple on the inside; torus convex, glabrous 
between the bases of the stamens; stamens 1.8 to 2.2 mm. long, the filaments 
flat, the connectives broadly expanded above the parallel pollen sacs, echinulate, 
with short diaphanous sharp-pointed hairs; carpels closely crowded into a cone- 
shaped gynecium, the ovaries prism-shaped, 4-angled, 0.9 to 1 mm. long, straight 
or slightly curved at the apex, glabrous or with a line of minute ascending hairs 
on each angle; styles about equal in length to the ovaries, fleshy, quadrangular- 
prismatic in shape and terminating in ovoid or spheroid stigmas, the outer ones 
11419°—14—_4 
