CONTRIBUTIONS TO BOTANY, 
125 
view we may add that Chailletia has similarly-shaped staminodes, 
placed ia like manner in the same whorl alternately with the 
stamens. Similar processes appear to exist in Siphonodon, GrifF., 
a genus referred to Aquifoliacece. 
From the analytical details before given, I now offer the fol- 
lowing amended generic character 
yExTOxicuM, R. & P. — Flores dioico-polygami. Masc. in di- 
versa planta. Bracteola membranacea, in calyptram undique 
clausam cum pedicello contiuuam florem involucrans, dense 
lepidota, e basi demum irregulariter rupta, et hoc modo 
decidua. Sepala 5 (rarissime 6), orbicularia, concava, mein- 
branacea, glaberrima, in aestivatione valde imbricata. Pe- 
tala 5 (rarissime 6), spathulato-oblonga, apice obtusa, inib 
angustiora, intus carina longitudinali prominente extusque 
nervo instructa, margine crenulato-crispata, aestivatione quin- 
cuncialiter imbricata, apicibus introflexis et inter se plicatis. 
Stamina 5 (rarissime cum sexto rudimentario), petalis alterna 
et breviora, introrsa ; filamenta semiteretia, incurva, carnosula, 
circa ovarium sterile depressum inserta : antherce conniveutes, 
subglobosae, basi cordatae, dorso affixae, 2-lobae, lobis adjunctis, 
subcoriaceis, utrinque rima obliqua demum poriformi latera- 
liter debiscentibus. Staminodia 5 (rarissime 6), staminibus 
alternantia, et cum iis hypogyna, carnosula, cuneatim sub- 
deltoidea, summo sub-bilabiata, labiis emarginatis, erecto- 
patentia, glaberrima. Ovarium rudimentarium, discum par- 
vum depressum subplanum mentiens, stylo obsolete mammae- 
formi notatum, dense lepidotum. — Foem. Bracteola, sepala, 
et petala maris. Stamina 5, sterilia, hypogyna, ovario ad- 
pressa, persistentia ; filamenta linearia, compressa, erecta, 
imo paulo curvata, apice obtusatim emarginata, intus glan- 
dulis 2 polline destitutis apiculata. Staminodia 5, cum sta- 
minibus altematim hypogyna, iis dimidio breviora, et duplo 
latiora, erecta, compressa, extus sulco notata, apice emar- 
ginata, persistentia. Ovarium ovatum, snbgibbum, petalis 
paulo brevius, crebi’iter lepidotum, 1-loculare; ovula 2, col- 
iateralia, summo linese parietalis prominentis suspensa. Stylus 
subtenuis, teres, glaber, ovarii tertia parte longitudinis, valde de- 
flexus. Stigma breviter2-furcatum,furcis acutis. exsucca, 
inversim obovata, sublepidota, stylo marcido apiculata : puta- 
men coriaceo-chartaceum, 1-loculare, 2-spermum. Semina 
plano-convexa, ex apice pendula ; integumenta membranacea, 
imo chalaza parva signata. Embryo in summo albuminis car- 
nosi et ejus dimidio longitudine immersus ; cotyledonibus 
foliaceis, subdeltoideo-cordatis ; radicula tereti, subulata, sub- 
sequilonga, summo spectante. 
