48 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
\ 
Annona macroprophyllata Donn. Smith is very closely allied to A. diversifolia 
Safford,’ the “ilama” of Colima and Acapulco (figs. 27, 28, pp. 19, 20) ; but it 
differs in its shorter-petioled, smaller leaves, its oblong flowers and thicker 
peduncles, and its persistently ciliate, smaller bracts or prophylla. 
Mr. O. F. Cook, of the Bureau of Plant Industry, U. S. Department of Agri- 
culture, while on a mission of agricultural exploration, found this species near 
Tapachula, in the State of Chiapas, southern Mexico, in 1902, 7 years before the 
type specimen described by Capt. Donnell Smith was collected, and describes it 
in his field notes as follows: 
“May 8, 1902. There is an Anona with glaucous leaves not infrequent at 
Tapachula, State of Chiapas. The smaller leaves or 
bracts are, like the bud scales, clothed on the back 
with long, silky, brown hairs. The mature petals 
are greenish at the base and become yellow in the 
distal half; along the margins and on the inside 
they are tinged and mottled with pink and deep red 
like the flesh of a peach. The clustered apices [con- 
nective heads] of the stamens are dull pinkish when 
fresh. The pollen lies in the anthers in chains [of 
tetrads], two chains in each of the two sacs. The 
stigmas have a joint or collar at the base and are 
bathed in a transparent fluid [at the time of polli- 
nation]. The petals turn dark brown within a few 
minutes after being placed in alcohol.” 
EXPLANATION OF PLATE 26.—Photograph taken in the 
field, at Tapachula, State of Chiapas, Mexico, near the 
Guatemala boundary, May 7, 1902, by Mr, Guy N. Collins, 
Annona bullata A. Rich. 
Anona bullata A. Rich. (in part) Ess. Fl. Cuba 
31. 1845. Same in Sagra, Hist. Cuba 10:13. 
aa pl. 5. 1845. 
"hillata, Onenetal annone Section Saxigena. A shrub or tree; new branches 
Scale 4. ~. ferrugineous-subtomentose, at length glabrate; older 
branches glabrous, grayish or brownish, longitudi- 
nally plicate-striate and bearing numerous inconspicuous brownish lenticels; 
leaves ovate to oblong-elliptical, acutish, obtuse or rounded, occasionally 
retuse, often mucronulate at the apex, obtuse or rounded at the base, 5 to 9 cm. 
long, 2.5 to 4.5 cm. broad, upper surface with the midrib, nerves (12 to 14 on each 
side), and reticulating veins impressed, the small areoles formed by the last having 
a gibbous or bullate appearance, when young pubescent with short grayish or pale 
rufous hairs, at length glabrescent; under surface with the venation elevated 
and ferrugineous-pubescent, the ultimate areoles concave, olive green or grayish; 
petiole 4 to 6 mm. long, ferrugineous or fulvous-tomentose, grooved above in 
continuation of the impressed midrib; peduncles solitary, extra-axillary, often 
issuing from very near the base of a new branchlet opposite a small leaf (not 
“subterminal” as described, in the specimens examined by me) at least 3 times 
the length of the petioles (15 to 18 mm. long), bibracteolate, the bracteoles 
squameform, ferrugineous or rufous-tomentose, alternate, one at the base, the 
other near the middle of the peduncle; flower buds oblong-pyramidal and sub- 
acute; flowers yellowish green when fresh, long and slender, resembling those 
of A. cherimola but with the outer linear petals when mature narrower and not 
* Journ. Washington Acad. Sci. 2: 118. 1912. 
