Ordo CLX. NYCTAGINACEJE (1). 
Jalapae Adam. fam. not. 2, p. 263 ( excl. Plumbago). — 
Nyctagines Juss. gen. p. 90. — Aggregatarum pare Giseke 
preelect. Linn. p. 528. — Jalapineae Batsc/i affin. p. 224 
( excl. Plumbago et Statice ). — Nyctagineae Juss. ann. Mus. 
2, p. 269, DC. ft. fr. 3 , p. 425. — Nyctagines Brown 
prodr.p. 421. — Nyctagineae Bartl. ord. p. 109. — Allio- 
niaceae Horan, prim, lin. syst. not. p. 68. — Nyctaginaceae 
Lindl. nat. syst. ed. 2, p. 213. — Nyctagineae Endl. gen . 
p. 310, Meisn. gen. p. 318 et comm. p. 329. — Nyctagina- 
cese Lindl. teg. kingd. p. 506, Choisy in mem. soc. genet, 
v. 12 ined. 
Bracteae ad basin flonim ; nunc ovate aut lanceolate , liber® 
aut connatae, involucram calyciforme circa flores efformantes ; 
nunc ovato-dilatate, flore majores, coloratae; nunc minutissimae 
1-3 ad quemque florem, deciduae aut persistentes. Involucram 
calyciforme , ubi adest, nunc garoophyllum 3-5-dentatum 1-5- 
florum post anthesin saepe ampliato-patulum, nunc polyphyllum 
multiflorum numero foliorum definite aut indefinite. Bracteae 
dilatato-coloratae, saepius trinae, circumdantes nunc florem unicum 
in medio situm nunc 3-flores, nempe unum cuique bracteae insi- 
dentem pedunculo bracteae coadunato. — Perigonium corollinum, 
tubulosum , tubuloso-campanulatum aut tubuloso-infundibuli- 
forme, varie coloratum, medio saepe constrictum, in Pisonia 
(cujus flores saepius abortu dioici) perigonium flonim mascul. 
magis dilafat nim campanulatum , fern, magis stricture cylindri- 
cum : pars inferior magis dura quandoque costata aut striata sem¬ 
per persistens et fractum involvens indurata et accreta; pars 
superior corollam melius referens raro marcescens smpius post 
anthesin decidua. Flores hermaphroditi, excepto genere Pisorna 
quod plerumque flores abortu dioicos refert, nempe in maseulis 
ovarii sterilis rudimentum , et in femineis stamina abbreviate 
quoque sterilia. Stamina munero definite, typo verosirailiter 
quinario sed saepe irregulariter imminuto, nempe raro 20 et 
quibusdam deficientibus 16-18 , aut 10 et ob deficientiam in se- 
cundo Verticillo 6-9, aut saepius 5 et abortu 4-1; hypogyna , 
basi saepe connate et circa ovarium arete marcescentia, baa 
perigonii quoque aliquando agglutinate, raro libera ; exsertaaut 
