SAFFORD—ANNONA SERICEA AND ITS ALLIES. 971 
middle; sepals ovate-acuminate, 8 to 10 mm. long, 6 mm. broad at the base, clothed 
on the outside with ferrugineous tomentum like that of the petiole, within glabrous 
at the base, elsewhere shortly appressed-pubescent; petals suborbicular, obtusely 
apiculate, thick and leathery, concave, 18 to 23 mm. long and 17 to 19 mm. broad, 
clothed on the outside with short dense velvety fulvous puberulence and on the 
inside with fine tomentulum, olive yellow with a broad dark brown spot covering the 
lower half; receptacle convex, clothed with very short straight fine whitish hairs; 
stamens numerous, crowded, 3.3 to 3.8 mm. long, with a very short flat filament and 
parallel linear pollen sacs 2 to 2.7 mm. long; connective expanded above the pollen 
sacs into a yellow head, this minutely muriculate with glossy points; gyncecium 7 to 9 
mm. in diameter, composed of crowded carpels about 4 mm. long, united into a solid 
mass, the ovaries about equal to the styles in length, clothed with whitish sericeous 
hairs, the pale yellow styles more or less prismatic, termi- 
nating in a rounded stigmatic head, the whole surface 
minutely velvety as seen under the microscope; fruit 
spheroid, 5 cm. in diameter, the component carpels pro- 
duced into long-attenuate fleshy claw-like protuberances, 
the surface velvety and each with a median longitudinal 
groove on the side remote from the peduncle; seeds 
oblong, 7 to 9 mm. long by 4 to 5 mm. broad, dull brown, 
witha caruncle at the base. (PiaTes 92,93. Fieur# 43.) - 
Type in the U. S. National Herbarium, no. 716048, col- 
lected at Gamboa, Canal Zone, Isthmus of Panama, April 
9, 1911, by H. Pittier (no. 3409). ‘‘A tree 5-6 meters high, 
leaves soft, tomentose; petals thick.” 
DistripuTion: Isthmus of Panama, Canal Zone to Rio 
Tuyra, Darien. 
SPECIMENS EXAMINED: CANAL ZONE—Gamboa, near 
Matachin, type collection, flowers and leaves. DartEN— 
Marraganti and vicinity, Rio Tuyra, 10.to 200 feet eleva- 
tion, R. S. Williams, April, 1908, flowers, fruit and leaves, 
‘A tree 50 feet high, with a trunk 14 inches in diameter.” 
To this species should probably be referred Sutton 
Hayes’s no. 127, collected at Obispo Falls, near Barbacoas, 
Isthmus of Panama, cited by Hemsley as ‘‘Anona sp. 
(?.Anonae sericeae, var. foliis pedalibus),”’* and described 
by T. A. Sprague under the name Anona uncinata.? The 
latter name is unavailable, having been previously used 
by Lamarck.* If Hayes’s plant, which I have not had 
the opportunity of comparing with the material upon 
which the present species is based, proves to be identical] Fic. 43.—Leaf and fruit of 
with the latter, it must assume the new specific name. 4””onaspraguei. Scale}. 
The leaves of Hayes’s plant are considerably larger than those of the material exam- 
ined, and a photograph of the fruit in the Kew Herbarium shows it to differ from that 
of Williams’s specimen in the New York Botanical Garden in being ovoid-globose 
instead of spheroid and in having the claw-like tips of the carpels directed toward the 
peduncle instead of away from it, as in the latter (fig. 43). 
Annona spraguei is named in honor of Mr. Thomas Archibald Sprague, of the Royal 
Botanic Gardens, Kew, by whom Dr. Hayes’s plant was described, as a tribute to 
his valuable work in botanical taxonomy. 
EXPLANATION OF PLATES 92, 93.—P1. 92, photograph of a flower of the type collection, preserved in 
alcohol, with two petals removed, so as to show the essential parts, and also of the gynoscium of another 
flower showing the consolidated mass of carpels with the sericeous-hairy ovaries surmounted by the prism- 
shaped styles terminating in swollen stigmas. Scale 5. Pl. 93, photograph of the type in the United 
States National Herbarium. Natural size. 
1 Biol. Centr, Amer. Bot. 1: 19. 2 Bull. Herb. Boiss. II. 5: 701. 1905. 
3 Lam. Encycl. 2: 127. 1786. 
