52 DR. J. D. HOOKER ON THE GENERA AND SPECIES 
or subspirally marked. Outside of each wedge is a bundle of liber-cells, which are - 
long sclerogen-tubes. This arrangement accords with that of Helosis, and is essentiålly 
exogenous. | ; 
The young peduncle and capitulum are wholly concealed by the imbricating scales and 
bracts, which are hexastichously arranged in my specimens, but pentastichously as — 
described by Swartz. As the peduncle elongates the bracts fall away from the lower 
part of the capitulum, leaving an areolated surface; the uppermost are persistent for a 
considerable period. The upper part of the peduncle or base of the capitulum is rough 
with conical papillæ, which become fusiform and slenderer upwards as they mix with the 
articulated threads and female flowers, of which they appear to be arrested states. 4 
The female flowers protrude their styles, which are bent down under the bracts, as - 
soon as the latter fall away, and the evolution of the flowers follows the same law as in 
-Helosis. The ovary resembles that of Scybaliwm more than of Helosis, being broader, with 
larger semicircular lips to the calyx and short stout diverging styles. The fruit is broadly 
ovoid, truncate at both ends, striate, sulcate towards the apex, and more turgid than usual 
amongst the Helosideæ. On a transverse section the style is found to consist of about - 
eight large cells surrounding a few smaller ones that enclose a soft conducting tissue. 
The seed is broadly oblong, compressed, very oily, of the same structure as Helosis. 
The articulated threads of the capitulum are (like the ovaries) much broader in this 
genus than in its allies, and are often fusiform and geminate. The apical cells turn black, 
and their cell-walls become minutely wrinkled soon after the bracts fall away. 
The male flowers have often a 4-lobed perianth, and the odd lobe is as often the lower 
. as the upper; there being no constant arrangement of the lobes with reference to the 
axis of the capitulum. The anthers are 2-celled, narrow oblong, and the pollen escapes 
through an irregular opening at the apices of the loculi: the filaments are free just below 
the insertion of the anthers. Pollen globose, with four minute papillze on the surface. 
XII. RuoParooxEuis, Junghuhn. 
CHAR. EMEND.—Rhizoma deforme, globosum, lobatum. Pedunculi basi volvå carnoså irregulariter fisså 
circumdati. Capitula elongata, bracteis peltatis deciduis velata, unisexualia, filis articulatis densè 
obtecta. Fu. 3. Perianthium campanulatum, integrum, basi columnæ stamineæ adnatum. Filamenta 
coadunata, longè exserta; antheræ 3, 2-4-loculares, arctè cohærentes, apice dehiscentes. FL. 9 ob- 
longæ, compressæ; perianthio bilabiato; stylis 2 elongatis; ovulo 1 pendulo, Fructus lineari- V. | 
ovato-oblongus, turgidus. Semen Heloseos. 
1, RHOPALOONEMIS PHALLOIDES, Junghuhn, in Nov. Act. Acad. Cees. Nat. Cur. vol. xviii. | 
Suppl. p. 215. (Tan. XII.) 
Pheocordylis areolata, Griff. in Linn. Soc. Trans. xx. p- 100. t. 8, descript. incompleta. 
Hab. Sylvis Acacie montibus Ins. Javæ, alt. 7000 ped. (Junghuhn)! Sylvis densis montium Khasiæ, et 
Himalayz orientali iæ orientali ikki | 
e Duc. 2n entalis, Nepaliæ orientalis et Sikkim, alt. 6-8000 ped. (Griffith, Thomson, J. D. Hm | 
| This ne remarkable plant has been much misunderstood, both by the author of the | 
genus, .J unghuhn, and more recently by Griffith. From J unghuhn' s des criptio n it is P 
