SAFFORD—CLASSIFICATION OF ANNONA. 37 
pale fulvous or yellowish white hairs, tapering upward and surmounted by a 
fleshy truncated stigma about half its length, this grooved longitudinally on the 
ventral side and covered with minute short straight hairs and glandular 
tubercles; fruit ovoid, small, resembling the fruit of Annona echinata, that of 
the type material (immature) about 4.5 cm. long and 3 cm. in diameter, some- 
times reaching 7 cm. in length with a diameter of 4 cm., muricate with 
numerous pyramidal protuberances spirally arranged, clothed with dense rufous 
or ferrugineous pubescence, marked with a longitudinal groove on the side 
opposite the peduncle, as in A. purpurea, and terminating in a hooked point 
recurved toward the peduncle, the latter somewhat thickened and woody 
when mature and bearing the persistent triangular calyx; seeds (immature) 9 to 
10 mm. long and 4 to 5 mm. broad, the testa brown and smooth but not polished, 
truncate at the apex and bearing at the base a conspicuous caruncle; pulp 
edible, sweet and pleasantly flavored. (PLatTe 19. Ficures 44, 45.) 
Type in the U. S. National Herbarium, no. 692739, collected and photographed 
on the Hacienda Solorzano, Borburata Valley, a short distance southeast of 
Puerto Cabello, Venezuela, July 14, 1913, by H. Pittier (no. 6465). 
This species is named in honor of Dr. Alfredo Jahn of Caracas, civil engineer 
and botanist, to whom Professor Pittier is indebted for many courtesies and 
for valuable botanical information received while on his recent mission to 
Venezuela. 
SPECIMENS EXAMINED: 
VENEZUELA: Hacienda Solorzano, near Puerto Cabello, Pittier 6465 (type). 
CoLombBia :’ In thickest forests, on margins of streams, Rio Meta, at Ororué, 
Lehmann 8824 (Berlin Herb.). 
DISTRIBUTION : Coast of Venezuela to Rio Meta, Colombia. 
LocaAL NAME: “ Manirito,” a diminutive form of “ manirote,” the local name 
of A. purpurea, applied to it on account of the resemblance of the fruits of the 
two species, 
EXPLANATION OF PLATE 19.—Field photograph of the type. Fruit not yet mature. 
Natural size, 
Annona cornifolia St. Hil. 
Anonea cornifolia St. Hil. Fl. Bras. Merid. 1: 33. 1825. 
Section Gamopetalum. <A low shrub or undershrub sometimes less than a 
foot in height, with simple or branching stems glabrous at the base and fer- 
rugineous-pubescent or tomentose on the upper part, especially near the apex; 
hairs simple, not stellate; branches axillary, slender, straight, ascending; leaves 
membranaceous, broadly ovate, or in the same specimen ovate and obovate and 
sometimes subrotund, obtuse or acutish at the base, acutish or sometimes obtuse 
at the apex, frequently mucronulate, the apex terminating in a minute rigid 
point, 5 to 10 em. long and 2.5 to 6 cm. broad, above sparsely puberulent, at 
length glabrous or nearly so, beneath puberulent or pubescent and canescent, 
with the prominent midrib and lateral nerves more or less rufous-tomentose ; 
petiole 3 or 4 mm. long, broadly grooved above, convex beneath, rufous-tomen- 
tose like the midrib; peduncles solitary or geminate, extra-axillary, often 
opposite a leaf, or apparently terminal by the abortion of the stem or branch 
beyond them, when geminate usually subtended at the common base by a sessile 
leaflike bract (the latter rufous-tomentose beneath on its midrib and lateral 
nerves), 1-flowered, usually incurved or nodding, thickened from the base to 
the apex, 2.5 to 6 cm. long, clothed with appressed ferrugineous hairs and 
bearing a small ferrugineous-tomentose or pubescent bracteole near the middle 
and one at the base, the hairs straight or floccose; calyx small, ferrugineous- 
