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OF BALANOPHOREÆ. 51 
recurvis. Capitula laté oblongo-cylindracea v. ovoidea, filis articulatis densissimè operta, e squamis 
delapsis areolata. Flores masculi synemate solido triloculari (nempe antheris unilocularibus) cylin- 
draceo, apice dehiscente, septis e strato duplici conflatis, exteriore celluloso, interiore floccoso albido 
e fibris minutissimis implexis. Pollen globosum, immaturum 3-nucleatum, maturum peripheriá 
hyalinå, tuberculis 3 notatá. Ovarium lineari-obovatum compressum, perianthii labiis latè ovatis, 
stylis breviusculis recurvis. Fila articulata lineari-clavata simplicia v. varié coadunata. 
Å very curious and peculiar-looking plant, of which Mr. Purdie has sent several spe- 
cimens belonging possibly to two species, and differing remarkably in the amount and 
disposition of the scales of the peduncle. These in small short specimens form a dense 
mass between the rhizome and capitulum, are very numerous, closely packed, broad, 
short and patent: in specimens 3-5 inches long, the scales are more loosely placed, linear- 
oblong, adnate by a broad base, and those towards the capitulum are completely peltate 
or sessile by the middle and lower part of the face of the scale; the upper parts and base 
being truncate, free, and slightly recurved: still larger and apparently old specimens 
appear to have shed these scales altogether. The bracts on the capitula are much larger 
than in Helosis, but are in an imperfect state upon the only specimen retaining them. 
The plants are evidently of annual duration, penetrating the last year's wood only, and 
producing no injury in the layers below that. 
XI. PHYLLOCORYNE, Hook. fil. 
Rhizoma crassum, deforme, ramosum. Pedunculi crassi squamis hexastichè imbricatis tecti, supernè tuber- 
culis conicis densissimè obsiti, | Capitula androgyna, cylindracea, squamis imbricatis deciduis tecta : 
filis articulatis densissim operta. Fr. 4. Perianthium 3-lobum. Anthere 3 in capitulum 6-loculare 
apice dehiscens connatæ. Fr. 9. Ovarium obovatum, compressum, calycis limbo bilabiato coronatum. 
Fructus turgidus, utrinque truncatus. 
l. PHYLLOCORYNE JAMAICENSIS. (Tas. XI) 
Cynomorium Jamaicense, Swartz, Fl. Ind. Occ. i. p.11; Browne, Jam. p. 334. 
Helosis Jamaicensis, A. Richard, Mém. Mus. viii. 432. 
Scybalium? Jamaicense, Schott & Endl. Melet. p. 12. 
Hab. In sylvis savannisque Jamaicæ (Swartz, Purdie, Wilson) Fl Jan.-Jul. (Nom. vern. * John 
Crow's nose.") 
Richard suggested the separation of this from Helosis, with which genus however it 
entirely agrees in the structure of the flowers of both sexes, but differs remarkably in 
habit, in the leafy peduncles, and imbricated bracts of the capitulum. Like its congeners, 
it varies extremely in stature and in the relative size of its organs; old specimens form 
subterranean masses a foot in diameter. 
The rhizome on a transverse section presents a thick, brown, cellular cortical layer, 
formed of hexagonal cells full of starch-granules and chlorophyll, with occasionally masses 
of sclerogen-cells. "The axis is occupied by a slender column of cellular tissue forming a 
true pith; it is surrounded by a layer of long woody sclerogen-cells or tubes ‚that pass 
between the wood-wedges as medullary rays, and are there shorter and cubical. The 
wood-wedges are about twenty, lanceolate (on the transverse section), symmetrically 
disposed round the axis, and are composed of pale slender tubes, which are scalariform 
H2 
MISSOURI 
BOTANICAL 
GARDEN. 
