132 
CONTRIBUTIONS TO BOTANY, 
male flower, and also Peraphora, where the petal in the same sex 
is sometimes wanting, and where the floral envelopes are two deep 
bursiform sepals, and the putamen is echinated in a manner dif- 
ferent from that of Cissampelos. Clambus is also constituted a 
genus distinct from Cissampelos, not only because it has six sepals 
and six petals in the male flower, but on account of the very 
difi'erent habit of its species, and the peculiar mode of venation 
of their leaves. 
Cissampelos, Linn. — Flores dioici, rarius monoici, Masc. 
Sepala 4, rarius 5 vel 6, spathulato-obovata, vel sublanceo- 
lata, submembranacea, ssepe eroso-denticulata et extus pilosa, 
patula, sestivatioiie imbricata. Petalum unicum, cyathiforme, 
interdum poculiforme, margine crenato, 4-lobum, carnosulum 
aut membranaceum. Stamen unicum, centrale; filamentum 
breve, filiforme, apice comec/iuM/zi plus min usve disciforme pel- 
tatum margine antheriferum fulciens j anthera e cellulis 4 vel 
pluribus in annulum circumcingentem coalitis, rima horizon- 
tali bivalvatim hiantibus. — Foem. Sepalum unicum, ovatum 
vel oblongum, subconcavum. Petalum unicum, sepalo ante- 
positurn et multo minus. Stamina nulla. Ovarium solitarium, 
gibbum, 1-loculare, ovulo unico ad angulum ventralem appenso ; 
stylus brevis, excentricus ; stigma tripartitum, laciniis aristse- 
formibus, divaricatis, ssepe uncinatis. Drupa ovata, camosula, 
stylo persistente ad hilum proximo notata; putamen obovatum, 
compressum, 1-loculare, loculo hippocrepiformi, extus liris plu- 
rimis interstitiisque sulcatis radiatim crenato, intus semini con- 
forme ; condylus loculo circumdatus, excentricus, discifornjis, 
extus utrinque subconvexus, intus ad hilum marginalem pro 
introitu vasorum tantum pervius. Semen hippocrepiforme vel 
lunatum, compressum ; integumentum tenue, linea longitudi- 
nali in fissuram condyli infixa ; embryo in albumine simplici car- 
noso, hippocrepiformis, teres, tenuiter elongatus, cotyledonibus 
incumbentibus, rad/icw/a supera,tereti,iis sequilonga et sequilata, 
ad stylum spectante. 
Frutices aut suffrutices scepius alte scandentes, interdum repentes, 
rarius erecti, plerumque inter tropicos totius orbis crescentes ; 
folia alterna,integr a, scepius cordato-orbicularia, petiolata, petiolo 
rarius palatim, scepius plus minusve intra marginem inserto : pa- 
niculse $ axillares, composite ramosce, scepe cymosce, multiflorce, 
vel e ramulo novella aphyllo aut bracteato plurimce, hoc modo 
racemum floriferum efformantes ; flores minuti : racemi $ axil- 
lares, longiusculi, scepe ramiformes ; bracteis plurimis, scepius 
majusculis, foliolosis, suborbicularibus, alternatim approximatis 
aut imbricatis ; flores minimi, pedicellati, plurimi, in axillis 
bractearum fasciculati et absconditi. 
