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Ordo CCVII. Meseinforyanthemeae.

Suffrutices v. rarius herbae succulentae. Folia opposil* '/alterna, carnosa, forma varia, plana, teretia sive trigona, exs* 1pnlala. Flores perfecti, regulares, axillares, alares v. terminal eS>solitarii, ternati, cymoso-corymbosi v. rarissime paniculati, s °.fervente, interdum sub vesperam expansi, aurei, crocei, purpur® 1 'violacei, rosei v. albi. Calyx tubo carnoso, cum germine c°®nato, limbi superi, quinquepartiti, rarius bi-octopartiti lacio 1 * 3 ,herbaceis, foliiformibus v. semiscariosis, plerumque inaequalil ,a :’aestivatione imbricatis. Corollae petala plurima, summo caly cistubo inserta, inultiseriata v. rarius uniseriata, linearia, post j 1 ®lliesim marcescentia v. gelatinose confluentia. Stamina indeliu lt ,®’cum petalis inserta, inultiseriata; filamentis subulatis v. setac elS ’inaequilongis, liberis v. basi coaliti^, antheris introrsis, biloc ul ‘ribus, ovatis, versatilibus, longitudinaliter dehiscentibus. GeTti 1inferum, carpidiis quatuor ad viginti, circa axim centralem cr ‘ lS ,sum subhorizontaliter verlicillatis quadri-vigintiloculare, carp®^phyllorum marginibus suturam ventralem liberam, superam c °^ }stituentibus, valvatim connatis, v. in sepium spurium plusdistincte introflexis. Trophospermia linearia, carpophyH 01 ^,nervo medio adnata, fundum loculi occupantia. Gemmulae Primae, pluriseriatae, funiculis longis, liliformibus insertae, ® ^pliitropae. Stigmata axim centralem terminantia, locul 0 *,,,numero, cristaeformia, crassa, v. filiformia, aut setacea, o 1 *sime multipartita. Capsula primum carnosa, deinde sublig 11 ®^,exsucca, apice truncato, depresso costis quatuor ad vigi» 11 ^arata, ad costas (suturas ventrales) longitudinaliter deliti^.carpidiorum a se-invicem haud secedentium-epicarpio subu ,u . Qincrassato, ab apice centrali ad basim periphericam ab cndoc®*^,chartaceo v. pergameneo in lacinias triangulares, temperi . ,,,mida erectiusculas, siccitate conniventes, soluta. Semina pl° rl q c *trophospermio basilari-parietali, lineari, extremitate peripl’®plerumque in tuberculum cartilagineum incrassato, funicul |Scurvatis inserta, globuloso-pyriformia, integumento cru* 1opaco, laevi, granulato v. tuberculato, hilo ventrali. j 0 r'

farinaceum, plus minus copiosum. Embryo periphericus» y,salis, curvatus v. uncinatus, magnus; cotyledonibus ovaboblongis, obtusissimis, radicula tereti, hilo adversa, proiu ,D

Genus unicum.

5163. Mesembryanthemum Linn.

IVTesembryon. Adans.

Mesemhryantlnis Sieclc,

Hymenogyue Uim.

Affinitas. Mesembryanlhemi vastum gemis, Porlulaccis^ cUr ),jt*liinc afline, illinc germinis et Irophospermioruin fabrica ad Cacteas