Mr. J. Miers on the Menispermacez. 11 
II.—On the Menispermacez. 
By Joun Minrs, F.R.S., F.LS., &e. 
[Continued from vol. xix. p. 330.] 
50. PycNARREENA. 
This genus was established by me in 1851 upon an Indian 
plant in the Wallichian Collection. It is easily recognized by 
its oblong, acuminated, simply penninerved leaves, upon short 
and remarkably tumid petioles: this manner of nervation, 
though less frequent, is not rare among the Menispermacee, 
for it occurs also in Hyperbena, Antitaxis, Penianthus, Clambus, 
Elissarrhena, Spirospermum, and Rhaptonema. It is also remarka- 
ble for having nine stamens almost without filaments, or, rather, 
as many 2-celled anthers, crowded in three series so as to form a 
sessile central head, after the manner of Anamirta; the anthers are 
transversely oval, 2-valved, gaping by a common horizontal suture. 
The drupe is oval, with the vestige of the style placed a little 
above the middle on the ventral face ; the putamen is reniformly 
oval, somewhat compressed, thin and testaceous, the seed being 
appended to the slight intrusion of an almost obsolete con- 
dyle on the ventral side; the embryo is exalbuminous; the co- 
’ tyledons, occupying almost the whole space of the cell, are very 
fleshy, accumbent, lunately incurved at the apex towards the 
ventral face, where the minute radicle points to the persistent. 
style. The genus comes near to Antitazis. 
PycnarruENna, nob.—Flores dioici. Mase. Sepala 6-9, ter- 
natim disposita, exteriora gradatim minora et bracteiformia, 
3 interiora multo majora, cuneatim ovalia, valde concava, 
eestivatione imbricata. Petala 6, sepalis breviora, cuneata, 
transversim latiora, apice subtruncata, lateribus paulo oblique 
involutis, membranacea. Stamina 9, in glomerulum centralem 
crebriter aggregata; filamenta brevissima, tenuia, fere obso- 
leta; anthere subglobose, cruciatim sulcate, septo transverso 
bivalvatim hiantes, loculo antico septulo verticali diviso, hinc 
ineequaliter 3-locellate.—F/. Mem. ignoti. Drupa gibboso- 
ovata, styli vestigio facie ventrali supra medium notata, 
glabra: putamen subreniformi-ovatum, paulo compressum, 
-leve, chartaceo-testaceum, 1l-loculare ; condylus e sinu ven- 
trali intra loculum paulo intrusus, hine convexiusculus. Se- 
men loculo conforme, exalbuminosum ; integumentum tenuiter 
membranaceum, facie ventrali condylo affixum: embryo locu- 
lum implens; cotyledones magne, carnose, accumbentes, 
apice incumbentim incurve, radicula minima supera ad stylum 
- spectante multoties longiores. 7 
Frutices Indie orientalis et insularum indigent; rami rigidt, 
