222 



Ordo CXTI. Plantagineae. 



Herbae perenncs, rarins siiffrutescentes, caule in plurimis 

 abbreviato, subterraneo, peilunculos scapiforines exserente, nunc 

 clongato, tereti, ramoso. Folia in plcrisque omnia radicalia, 

 rosulato-congesta, in aliis caulina, opposita v. alterna, siniplicia, 

 nervosa, inlegerrinia, dentata v. pinnatifido-incisa, in quibusdara 

 carnosa, semiteretia, sessilia v. in petiolum basi dilatatuni angu- 

 stata. Flores perfecti v. iniperfecli, monoici, dioici v. polyganii, 

 starainigeri in pedunculo scapiformi, medio unibracteato, basi 

 pistilligeris pluribus stipato solitarii, perfecti, immixtis nonnun- 

 quam aliquibus abortu raere pistilligeris, in spicara densara, sira- 

 plicissimam, elongatara v. abbreviatani et capituliformem, pedun- 

 culo scapiformi, radicali v. terrainali sustentam congesti, singuli 

 bractea unica, plus minus lata, raargine scarioso-membranacea 

 stipati. Calyx persistens, herbaceus, quadrifidus, laciniis subin- 

 aequalibus, margine scariosis, aeslivatione imbricatis, floribus 

 typice pistilligeris triphyllus, foliolis unilateralibus. Corolla sca- 

 riosa, receptaculo inserta, lubulosa v. iirceolaris, limbo tri-qua- 

 drifido, aequali v. interdura subinaequali, persistens, saepius a 

 fructu grossificante tandera per raedias lacinias fissa. Stamina 

 quatuor v. rarissime unicura, in floribus perfectis raedio corollae 

 lubo, in staminigeris receptaculo inserta, limbi laciniis alterna; 

 jilamentis filiformibus, distinctis, aestivatione inflexis, sub anthesi 

 exserlis, flaccidis, persistentibus, antheris introrsis, bilocularibus, 

 basi V. supra basim affixis, versatilibus, longitudinaliter dehiscen- 

 tibus, deciduis. Germen liberum, in floribus typice pistilligeris 

 monophyllum (?), uniloculare, gemmula unica, e trophosperniio 

 basilari, brevi erecta, araphitropa, v. eidem peltatim affixa, 

 Iransversim araphitropa; in floribus perfectis germen diphyllum, 

 biloculare, gemmulis trophospermio dissepimentum constituenti 

 pellatim affixis, amphitropis, micropyle infera, in quovis loculo 

 solitariis v. geminis collateralibus, aut indefinite plurimis. Stylus 

 terminalis, simplex; stigmate indiviso v. rarissime obsolete bifido. 

 Fruetus in aliis nucula monosperraa, seraine erecto v. peltatira 

 transverso, in aliis capsula raembranacea, bilocularis, loculis 

 mono-di-polysperrais, quandoque loculis inter semina collatcralia 

 septulo secundario, plus minus corapleto spurie quadrilocellatis 

 quadrilocularis, circurascisse dehiscens, dissepiraento tandera li- 

 bero, faciebus serainifero. Seminum integuraentum raembrana- 

 ceura V. raucilaginosuni, hilo ventrali, rarissime prope basim 

 laterali. Emhryo in axi albuminis dense carnosi rectus, cylin- 

 dricus, ejusdera fere longitudine, rarissime subarcuatus, supra 

 albumen transversira periphericus; cotyledonibus plano-convexis, 

 radicula ab hilo remota v. eidem parallele conligua, infera v. 

 rarissirae centrifuga. 



