132 ON SOUTH-AMERICAN APOOYNACEZ. 
bright green and sparsely pilose above, sulcate on the midrib, of a yellowish tinge 
beneath, with many snow-white hairs, midrib and nerves reddish, 8-12 lines long, 
2-3 lines broad, on slender pilose petioles 4 line long; flowers solitary in many of the - 
axils, on a peduncle 6 lines long, bearing in its middle 5 erect verticillate bracts the 
_ size and shape of the sepals; sepals linear-lanceolate, acute, of a reddish hue, subpilose, 
7 lines long, 1 line broad; corolla large, hypocrateriform; tube 54 in. long, funnel- 
shaped in the mouth for $ of its length, narrowly cylindrical below, 1} line broad, and 
of a greenish hue; 5 segments, rotately expanded, obliquely trapezoid, 15 lines long, 
10 lines broad, the sinister margin thickened and of a bright red colour, archingly and 
dextrorsely curved, the rest pure white, and crispate on the margin; they close into a 
pentagonal twisting cone in the evening and again expand on the next morning; the 
stamens are inserted on a pilose ring at the constriction of the tube; the filaments are 
very short, the anthers oblong, yellow, 4 lines long, obtuse at the base, curving outwards, 
cohering by agglutination with the clavuncle, terminated by triangular membranes, all 
connivent in the axis; disk of 5 erect, acute lobes, half the length of the 2 acute oblong, 
subpilose ovaries; style slender, 4% in. long, bearing a green pentagonal oblong 
clavunele, having a lacerated peltate membrane at its base, and terminated by 2 minute 
stigmata; follicles 2, erect, subterete, striate, subtorulose, afterwards glabrous, 8 in. long, 
2 lines broad; pericarp subcoriaceous, red outside, yellow inside, these nitid and finely 
striate; seeds many, reddish, compressed, dorsally striate, subpilose, channelled on the 
ventral face, with a longitudinal raphe, 4 lines long, 2 lines broad, dorsally striate, sub- 
pilose, crowned with an apical coma 15 lines long, consisting of many dense erect reddish 
hairs ; embryo in corneous albumen, with a superior terete radicle 3 line long and oblong 
subobtuse cotyledons 2 lines long, 14 lines broad. 
Drawings of this species, in flower and in fruit, with the analysis of the flower, fruit, 
and seeds, are given in Plate XVII. 
Species excluded :— 
Macrosiphonia hypoleuca, Müll. . . . = Rhodocalyz hypoleucus, nob. 
M. suaveolens, Mart. & Gall. . . . . Rhodocalyx suaveolens, nob. 
STIPECOMA. 
This genus was elaborated by me in 1837, under another name, for some new species 
which I had collected, and illustrated by drawings and analyses taken from the living 
plants. Dr. Müller published the genus in 1860, upon Echites peltigera, A. DO., which 
he described and figured in the * Flora Brasiliensis, not recognizing two other species 
described by him under Echites. His generic name is not quite consistent, because the 
coma of the seed is not stipitated, properly speaking, but springs from the long rostrate 
summit of the testa. Messrs. Bentham and Hooker (Gen. ii. 724) quite misunderstood 
the earpologieal characters of the genus, which they had derived from Müller, who was 
unacquainted with the real structure. The following is a more correct diagnosis. 
