218 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
than the petals, broadly ovate or triangular, cohering at the base; petals 6, 
hypogynous, in 2 series, coriaceous, valvate; outer petals lanceolate, concave 
at the base, when mature much longer than the inner; inner petals (those only 
of male flowers observed) ovate forming a pyramidal covering to the andre- 
cium; receptacle (torus) hemispherical or conoid; stamens closely crowded in 
a broadly ovoid or conoid mass; filaments short and thick, bearing at their 
extremity a pair of contiguous pollen sacs, somewhat like those of the genus 
Annona, but much shorter and without the characteristic annonaceous hood-like 
or capitate, expanded connective above them; female flower long-peduncled 
(when mature); carpels humerous, coherent, closely crowded on the torus; 
ovules solitary; fruit oblong, resembling that of an Annona, formed by the con- 
solidation of the carpels into a fleshy mass around the elongated torus as an 
axis; seeds enveloped when fresh by a thin membranous aril; testa thin, 
glabrous, impressed with shallow pits; albumen ruminate as in other Anno- 
naceae, with the minute embryo embedded in its base. 
Type species, Raimondia monoica. 
The genus is named in honor of the eminent geographer and naturalist, Prof. 
Antonio Raimondi, in recognition of his valuable scientific work in many fields 
and in grateful acknowledgment of his kindly assistance to a young botanist 
studying the vegetation of the shores and mountains of his adopted country.2 
Raimondia monoica sp. nov. Prates 52, 53. 
A small tree with the younger parts densely ferrugineous-tomentose: branches 
at length glabrate, terete, grayish brown; leaf blades obovate to oblanceolate, 
18 to 23 em. long and 5 to 12.5 em. broad, membranaceous, usually acute at the 
base (sometimes somewhat rounded), abruptly acuminate, feather-veined, undu- 
late, at first densely ferrugineous-tomentose on both sides, at length sparsely 
“$0 except along the prominent midrib and lateral veins beneath, these per- 
sistently ferrugineous-tomentose ; petioles with a similar indument, 10 to 15 
mm. long, with a longitudinal sroove above, this a continuation of the impressed 
channel along the midrib; inflorescence densely ferrugineous-tomentose, con- 
sisting of several flowers closely crowded on short extra-axillary branchlets, 
these often issuing from the old wood or from a point opposite a leaf; peduncles 
5 to 15 mm. long, densely ferrugineous-tomentose with a broad, clasping, ovate, 
acuminate bracteole below the middle and one at the base; flowers monecious, 
the pistillate flower issuing from the base of the flowering branchlet (in the 
specimens examined) and several staminate flowers occupying the remainder; 
calyx divisions broadly ovate or triangular, abruptly acuminate, 2.5 mm. long 
and 2.5 mm. broad at the base, ferrugineous-pubescent ; outer petals valvate, 
lanceolate, rounded at the apex, 15 to 20 mm. long and 7 to 8 mm. broad, with 
*Raimondi, Antonio. Born at Milan, 1825; died at Lima, Peru, December, 
1890. An eminent geographer and naturalist. He went to Peru in 1850, and 
spent twenty years in traveling and collecting material for his great work on 
the geography and natural history of the Republic. This was to have been 
printed at the expense of the nation, and three preliminary volumes appeared 
(1874, 1876, and 1880). The edition of the fourth volume was destroyed by the 
Chileans in 1881, and after the war the publication was interrupted; but the 
materials collected by Raimondi, including his valuable herbarium, are preserved 
by the Peruvian Geographical Society. Included in his great work, #1 Peru, 
are accounts of the vegetation of various parts of the Republic. He also pub- 
lished Elementos de la Botanica for the use of schools (Lima, 1857), and during 
the latter part of his life he was professor of botany and zoology at Lima. See 
Amat di San Filippo, Stud. Biogr. Viagg. Ital. p. 597, 1882. 
