PLUMBAGINES. CXVI. PLANTAGINEAE. 



IIkkhak perennes v. rarius suffrutices, 

 caule in plurimis abbreviato , subterranco , pe- 

 dunculos scapiformes exserente, nunc elongato, 

 ramoso, tcreti. Folia in plurimis omnia radi- 

 calia, rosulato-congesta, in aliis canlina, oppo- 

 sita v. alterna, simplicia, nervosa, integerrima, 

 dentata v. pinnatim incisa, in nonnullis carno- 

 sa, semiteretia, nunc sessilia, nunc inpetiolum 

 basi saepissime dilatatum attenuata. 



Florrs unisexuales, monoici, polygami v. 

 Iiermaphroditi, masculi in pedunculo scapifor 

 mi medio unibracteato, basi femineis pluribus 

 scssilibus stipato solitarii , Iiermaphroditi im 

 mixtisinterdiimfloribus abortu femineis in spi 

 cam densam, simplicissimam, elongatam v. ab- 

 breviatam, capitiiliiormem, pedunculo sca- 

 piformi radicali v. terminali sustentam congesti, 

 singuli bractea unica, plus minus lata, margini- 

 bus scarioso-membranacea stipati. 



Calyx herbaceus, quadrifidiis, laciniis sub- 

 inaeqiialibus, margine scariosis , per acstiva- 

 tionem imbricatis, persistens, in floribus femi 

 ncis triphyllus , (oliolis subiinilateralibus. 



Corolla hypogyna,scariosa, tubulosa, lim- 

 bo quadrifido, v. rarius trilobo , aeqtiali v. in- 

 terdum snbinaeqiiali , in floribus femineis ur- 

 ccolaris, ore contracto, et inaequalitcr tri-qua- 

 drifido, persistens, tandem saepius a fructu 

 grossificante pcr medias limbi lacinias fissa 



Stamina quatnor v. rarissime iinicnm, in 

 floribus hermapliroditis mcdio corollae tubo 

 inserta, in masculis hypogyna , limbi laciniis 

 alterna. Filamcnta fililormia, in alabastro 

 inflcxa, sub anthesi Ionge exserta, flaccida, pcr- 

 sistentia. Antherae introrsae, biloculares, 

 basi v. supra basim aflixac , versatilcs , deci- 

 duae; loculi oppositi, contigui, longitudinaliter 

 dchiscentcs. 



Ovarium liberum, in floribtts fcmineis uni- 

 locularc; ovulo unico eplaeenta basilari bre 

 vissima crassiuscula erecto, amphitropum, v. 

 eidem peltatim affixo , transversim amphltro- 

 po, in floribus herma|)hroditis biloctilare; 

 ovttlis plarentac dissepimentum censlituenti 

 peltatim offixis, ampbitropis, micropyle infera, 

 in quovis lorulo solitariis v. geminis collatera- 

 libus, autindefiniteplurimis. Stylus termina- 

 lis, exsertus, simplex; stigmate indiviso v. 

 rarissime obsoletc bifido. 



Necdla ossea, monosperma, semine crecto 

 v. pcltatim transvcrso , vel capsula membra- 

 naeea,bilocitlaris, locttlismono-di-polyspcrmis, 

 qnandoque loculis intcr scmina collateralia sep- 

 tulo secundario plns minusve completo bilocel- 

 latis spurie quadrilocularis, circumscisse de- 

 hiscens, dissepimento deiniim libero , facicbus 

 scminifero. 



Semintm t e s t a membranacea v. raticilagino- 

 sa; umbilico ventrali, rarissimc prope basim 

 laterali. Albumen dense carnosum. 



Kmiikvo in axi albuminis rectus, cylindricus, 

 ejusdem fere longitudine, rarissimc subarcua- 

 tus , supra albumen transvcrsim periphericus. 

 Cotyledones plano- convexae. Radicula 

 cylindrica, ab umbilico remota v. interdum eidem 

 parallele contigua, infera, rarissime centrifuga. 

 Plantagincae e nnllo climate cxnles, impri- 

 mis hemisphaerae borealis regiones 

 tcmperatas incolunt, in regione mediter- 

 ranea et in A merica b or eal i imprimis 

 copiosae, transaequatorem in America paul- 

 lo frequentius observatae. 



Affinitas ordinis, e generibus ntiit fructus fa- 

 brica diversissimis, attamen arctissime cognatis 

 conflati , paullo obscurio. Cttm P 1 u m b a g i- 

 neis imprimis corollae textura, cum Primu- 

 laceis ovulorum directione, capsulae in non- 

 nullis dehiscentia transversa convenit; priori- 

 bus quoinvis oviilorum situ ct radiculae direc- 

 tionc satisdistinctis, certe affinis, a posteriori- 

 btis longitis distare vidctitr. 



SI«»N. l.iilMri-llli '.'\ V Flnres monni- 

 ct, masculi in pedunculu axillari sulilarii, fcininci 

 ad basiin pedicelli masculigcniini v. terni, sessilcs. 

 Jllir. Calyx qnadriparlitus, laciniis aequalihus. 

 Corolla hypngyna, luliulosa, scarinea, limlin 

 quadripartitu. Stamina 4, hypugyna, rnrnllac 

 laciniis altcrna; filamenta Inngc cxserta, flac- 

 cida, antberae introrsac, liilnculares, loculis 

 uppositis, cnntiguis, longitudinalitcr dehiscentibus. 

 Ovaiii rudiinentuui. Fcin. Calyx Irlpliyllus, 

 fnliolis linearihus, inacqualibiis, unilatcraliliiis. 

 Cnrolla searinsa, urceolata, ore cnntracto, inae- 

 qualllertri quadrifidn, pcrsislcus. Ovarium lilie- 

 rttni, unilocularc. O vul tim unicuin crcctuin. Sty- 

 1 u 8 tcrminalis, filiforniis, Inngccxscrlus ; stigtna 

 indivisum. Nncnla ossea, mnnospcrnia. Seni en 

 erectum ; testa memlirunaeea. Kmliryo inaxial- 

 inis dense carnosi reclus, cylindricus, ejnsdem 

 fcre longitndlne; cotyledonlbns ellipticis, plann- 

 convexis; radicula infera. __ llcrba aquatica, in 

 Europa imprimis borcaliore indigcna; radicc 8(0- 

 lonifcra, foliis ontnibus radicalibita , lineari-subula- 

 lis, camosulis, basi dilatata canaliculatis, vcduncn- 

 masculis folia subucquantibus , supra medium 

 bracteutis. 



Littorclla Linn. gen. n. 13SS. Schkulir I. Stf. Hook. 

 F/. l.ond. t. 168. Plantago unlflora Linn. 



«I«S». Bonmieria DEC/IISKE. Florcs 

 pntvganii, hcrmaplirnditi ciiin fcmincis spicatn-ca- 

 pitali, singuli liractea uicdin carnosa, marginibus 

 latcmcmliranaceatectl. Calyx qnadripurlitus, pcr- 

 sislens, laciniis antitis paulln niajuribus. Cnrnlla 

 hypngyna, tulmlusa, scarlnsa, limbo lircvi, irrcgu- 

 laritcr trl qnadrilobo. Stamen unictim, corullae 

 tubo nicdin inter limlii lolius inscrtnm; filamcn- 

 tuin lnngc cxsertuin, flaccitlum , antbcra biln- 

 cnlaris, basi emarginala aflixa, apice hrevissime 

 mucrunata , Incnlis lnngitudinalitcr deliisccnlilius. 

 Ovarinm libcrunt, rntundu-coniprcssuin . niiiln 

 cnlare. Ovulum unicum , placcntae brevi cras- 

 siusculac pellatim aflixuin, anipbitrupuni. Stylus 



