XXIII. PORTULACEJE. 1505 
Onpo XXIII. PORTULACEZ. 
Endl,. Gen. 946; Lindl. Veg. Kingd. 500. 
Flores regulares, hermaphroditi, Sepala petalis pauciora, vulgo 2, rarius 5, libera v. 
basi ovario adnata, valde imbricata, persistentia v. decidua, herbacea scariosa v. rigida. 
Petala 4—à, rarius oo, hypogyna v. rarius perigyna, libera v. ima basi, rarius altius, con- 
nata, imbricata, integra. Stamina cum petalis inserta et iis basi seepe adnata, nune numero 
petalis :equalia y. pauciora et iis opposita, nunc oo ; filamenta filiformia. .4mthere 2-locu- 
lares, loculis parallelis longitudinaliter delisoentine Ovarium liberum v. calyce semiad- 
natum (toro concavo semi-immersum ?), 1-loculare. Stylus basi simplex, superne v. profunde 
3- rarius 2-fidus, ramis intus longitudinaliter stigmatosis. Ovula 2—oo, funiculis e fundo 
ortis liberis v. in columnam centralem coalitis affixa, amphitropa, adscendentia, micropyle 
infera v. transversa. Capsula membranacea v. crustacea, in valvas tot quot styli v. cir- 
cumscisse dehiscens, rarius indehiscens, Semina co v. abortu solitaria, reniformi-globosa 
v. a latere compressa, obovata v. lenticularia, hilo marginali, testa sepius crustacea; non- 
nunquam strophiolata. Embryo nunc plus minus curvatus albumen farinaceum includens, 
nunc leviter tantum uncinatus albumine parco ; radicula teres. 
Herbze, rarius suffrutices v. fruticuli, &epius glabrse et plus minus succulentz, nunc longe 
pilose. Folia alterna v. opposita, integra, scepe carnosa. Stipule scarioss, nunc lacerz 
v. in pilos mutatze v. 0. Flores ad apices ramorum solitarii, racemosi cymosi v. paniculati, 
v. inferiores axillares v. laterales. Petala, scepius fugacia v. deliquescentia. 
Species ad 125, plereeque American: utriusque hemisph:erii, nonnullze Austro-Africanse v. Austra- 
lienses, perpauesz per Asiam, Africam borealem, v. Europam disperse. 
Portulacez Caryophylleis quoad ovarium et semina affines, facile dignoscuntur calyce, habitu, et 
staminum situ v. numero; a Mollugineis et Ficoidearum generibus apetalis, quibus a Fenzlio ad- 
sociatze fuerunt, different imprimis ovario haud septato. Ordo olim inter Calyeifloras enumeratus, 
propter ovarium abnorm dnatum in genere Europso, Poriulaca, cum in omnibus ceteris 
generibus, petala et stamina distinete hypogyna sint, et, discus perigynus CaryopAyllearum nonnul- 
larum omnino desit. 
FORMJZE. ABNORMES, 
Sepala 5 in Lewisia. 
Petala basi brevissime connata in speciebus nonnullis Claytonie, Calandrinie, etc., et corolla dis- 
tinete gamopetala in Montia et. Calyptridio. 
Ovarium semiadnatum, (toro dilatato semi-immersum ?) et versus medium sepalis petalis stamini- 
busque eireumdatum in Porfulaca. 
Orulum unicum et fructus alatus indehiscens in Poréviacaria, 
Embryo parum curvatus v. fere rectus albumine parco in GraAhaia, Talinopsi (et interdum in 
Anacampserote ?). 
CONSPECTUS GENERUM,. 
1. PogrurAca. Ovarium semiadnatum, petalis staminibusque perigynis.— eg. calid. utrius- 
que orbis. 
* Frutices suffruticesve, rarius herbe carnosa. — Embryo (ubi notus) arcuatus v. subrectus, 
albumine parco. 
2? PrxunoPETALUM. Sepala carnosa, persistentia, Stamina 8. Styli 4. Suffrutex, foliis 
alternis.—Zns. Galapagos. 
3. PogrurACARIA.  Ovulum unicum. Fructus alatus, indehiscens. Frutex, foliis oppositis. 
Afr. austr. 
4. Gnamawia. Calyx bracteis imbricatis scariosis cinctus. Stamina oo. Frutex, foliis al- 
ternis.—. Aser. austr. extratrop. 
5. TanrworPsis. Sepala rigida, persistentia. Stamina oo. Capsula oblonga. Frutex, foliis 
oppositis.——Nov. Mexico. 
6. ANACAMPSEROS. Sepala demum decidua, Stamina co. Capsula oblonga. Suffrutices 
v. herbz foliis crassis imbrieatis.—Af*. austr. 
