54 DR. J. D. HOOKER ON THE GENERA AND SPECIES 
stages of growth led to the same conclusions as were obtained from Balanophora involu- 
erata. After flowering, the capitulum and peduncle wither, dry, and fall away from the 
base of the volva, but do not deliquescé nor turn putrid, nor are they attacked by insects 
to any extent. Each peduncle seems to become detached from the rhizome by a very 
obscure articulation, which may be seen as å dark transverse line, on å longitudinal section 
of the base of the peduncle, some time before its falling away. The rhizome is perennial, 
but does not give forth its buds until July, and the plant ripens its fruit in September. 3 
The apex of the stigma, described and figured by Griffith as an opaque rounded body, - à 
is when young, and even after impregnation, perfectly simple. 
The apices of the articulated hairs consist of several series of cells, which are (as figured — 
by Griffith) much darker than the rest; and the outer cell-membrane becomes transversely 
wrinkled, as in the South American Helosideæ. 
XIII. Corynæa, Hook. fil. 
Rhizoma deforme, lobatum. Pedunculi nudi. Capitula androgyna, squamis hexagonis peltatis velata. | 
Fu. 3. Perianthium infundibuliformi-campanulatum, margine crenatum. Anthere 3 v. synema — 
` 6-loculare. Fr. 9. Heloseos. : 
1. Coryn#a CRASSA, Hook. fil.; capitulis clavatis cylindraceis. (TAB. XIII.) 
Hab. Sylvis densis Crategi, Thibaudie et Befarie, prope S Fé de Bogota, Nove Granade, alt. 8000 ped. 
(Purdie, 1846). : 
Rhizoma lobatum, a magnitudine nucis Juglandis ad capitis humani. Pedunculi plurimi, juniores basi E 
annulo cincti, 1-8 unc. longi, 1-12 unc. crassi, nudi, cylindracei. Capitulum obovato-oblongum v. 
clavatum, in pedunculum attenuatum, flores perplurimos utriusque sexus gerens, filis articulatis 
immixtis. Fr. 4 ad basin capituli plurimi. Perianthium basi cum tubo stamineo connatum, 
supernè ampliatum, filis paulló longius, margine crenatum, rariüs fissum. Columna staminea longè 
exserta, filamentis omnind coalitis. Anthere 3, 2-loculares, arctè cohærentes, introrsüm et ad apices 
dehiscentes. Pollen 3-4-nucleatum. FL. 9. Ovarium obovato-oblongum, compressum, limbo peri- 
anthii breviter bilabiato coronatum ; styli graciles, elongati. Fructus latè oblongus v. orbicalaris, 
compressus. - 
This fine species often weighs many pounds, and is so abundant that the roots of å 
plant attacked by it resemble a mass of potatoes. The rhizome encloses the roots of the 
plant on which it grows parasitically. In the evolution of the flowers it follows 
the same law as Helosis. The male flower entirely resembles that of Rhopalocnemis. 
After the fall of the scales from the capitula, both the stigmata and the tips of the arti- 
culate threads covering the head sphacelate; the latter wrinkling, and the stigma, which | 
consists of two series of globular cells (enclosing a mucilaginous passage down the style), 
becomes minutely punctulate. The body of the style consists of about eight large peri- 
pherical cells, enclosing the cellular conducting tissue. The cavity of the ovarium is 
small, compared with its congeners; and the seed * is also small and broad. | 
* In Tab. XIII. figs. 11, 12, 13, I have figured a large embryo in i : thi i | 
fruits (now ten years ago) ; but having meer fed since das in me ine" prem dad g | 
in the body of this memoir. Since Mr. Weddell has informed me of the very rare occurrence of the calyx in Sar- | 
cophyte, I have been induced to reconsider the propriety of introducing these drawings, and now do so with the more 
confidence from the embryo of Sarcophyte being so entirely similar to this.—Kew, Aug. 2, 1856. ft 
