SAFFORD—RAIMONDIA, A NEW GENUS OF ANNONACEAE. . 219 
a ferrugineous, silky pubescence on the outside; inner petals triangular, con- 
cave, rounded at the apex, 7 to 8 mm. high and 6 to 7 mm. broad at the base, 
forming a cone-like covering over the sexual organs; receptacle hemispherical 
or conoid in the male flower, in the female flower elongating at length into 
a linear axis, the carpels radiating around this at right angles; male flowers 
without vestiges of carpels; stamens very numerous, the pollen sacs terminal 
contiguous, oval, dehiscing on the back by a median longitudinal slit; fila- 
ment stout and fleshy; female fiowers with very numerous one-ovuled carpels 
closely crowded and cohering, forming an oblong gyneecium, this devel- 
oping into a glabrous, thin-skinned compound fruit about 10 cm. long and 5 
cm. in diameter, shaped somewhat like an ear of maize, depressed at the base, 
and rounded at the apex, borne on a peduncle 2 to 2.5 em. long; seeds oblong- 
obovate, flattened laterally and usually obliquely truncate at the apex, sharp- 
edged, enveloped when fresh in a thin membranous aril as in the genus Annona 
and surrounded by scant pulp; testa chestnut-colored, thin and brittle, with the 
surface glabrous and shining but punctate with shallow pits, rough on the 
inner surface to conform with the grooves of the endosperm, this ruminate as in 
other Annonaceae and with the minute embryo embedded in its base. 
The staminate flowers shrivel up and fall off after having performed their 
function, and the peduncles of the pistillate flower elongate and thicken as the 
fruit matures. The large obovate, membranaceous, undulate leaves with their 
short petioles, somewhat resemble those of Annona purpurea. The branches, 
however, are not conspicuously covered with lenticels, as in many Annonaceae, 
though these are present in the grayish brown bark of the older branches. 
Type in the United States National Herbarium, nos. 5381655 and 531656, col- 
lected from the same tree, at the Alto de Primicias, near Jambalé, Rio Palo 
pasin, Tierra Adentro, Cordillera Central of Colombia, altitude 2,600 meters, 
latitude about 2° 25’ north, February 5, 1906, by Prof. Henry Pittier (no. 1456). 
Only a single tree was observed. 
EXPLANATION OF PLATES 52, 53.—Plate 52, leaf and fruit. Reproduced from a field 
photograph taken by Cc. B. Doyle. Natural size. Plate 53, details of inflorescence and fruit. 
a, Male flower from which one outer petal has been removed, showing the three inner 
vaivate petals covering the andreecium: b, male flower from which the calyx, outer petals, 
and one inner petal have been removed, showing the andrecium; c, stamen composed of 
thick fleshy filament and a pair of pollen sacs, seen from the outside or back; d, in- 
florescence from the base of which a female flower has heen broken; e, young fruit with 
persistent calyx; f, mature fruit: cross-section showing the seeds inclosed in their mem- 
pranous arils; g, seeds with aril removed showing the glossy, glabrous testa. a, b, Scale 
about 2; ¢, scale 20; d, e, f, g, natural size. Drawings by J. M. Shall. 
