501 



aqua coc(i substanliam saccharatam fuscam praebent. Plurimarum fibra ufilis, 

 Marsdeniae tenacissimae Wight.etArn. et Orlhantherae vimineae Wighf. can- 

 nabina (enacior. Seminum coma cum lana gossypina et bombycum tela miscerl 

 solet. 



Marsdeniae tinctoriae R.Br. eiGijynnetnatis tingentis Wighf., planfarum 

 indicarum, folia colorem caeruleum praebent. 



Ordo CXXXV. Gentianeae. 



Herhae annuae v. perennes, interdum suffrutescentes, rarlus 

 frutices huniiles, interdum volubiles, caule ramisque terelibus, 

 corapressis v. intcrdum tetragonis, succo in omnibus aqueo, pube 

 nulla, aut in quibusdam glandnlosa sive viscida. Folia opposita 

 V. interdum verlicillala, rarissime alterna, radicalia saepius con- 

 gesta, omnino simplicia et integerrima, in Menyantheis ternata, 

 saepius crenata, plerumque nervosa, sessilia v. in petiolum an- 

 gustata, CAStipuIata. Flores perfecti, regulares v. rarissime 

 irregulares, terminalcs v. axillares, solitarii sive fasciculati, nunc 

 corymbosi, racemosi v. cymosi. Calyx persistens, liber, e folio- 

 lis quatuor aut quinque, rarius sex-octo, liberis v. plus minusve 

 connatis, foliolis aestivatione valvalis v. contortis, planis sive 

 carinatis, teres, angulatus v. interdum alatus, rarissime foliolorum 

 suturis in alas productis. Corolla receplaculo nudo v. disco aut 

 glandulis instructo inserta, decidua v. marcescenti-persistens in- 

 terdura supra capsulam contorta, gamopetala, infundibuliformis, 

 hypocrateriraorpha v. subrotata, fauce nuda v. annulo subtilissirao, 

 firabriato instructa, laciniis basi nudis v. intus foveolis glanduli- 

 feris, interdum ciliatis aut squamula propria tectis, interdum in 

 calcar fundo glanduliferum, rarissime extus glandula munitis, 

 aestivalione dextrorsum contortis v. in Menyantheis induplicatis. 

 Stamina corollae tubo v. fauci inserta, ejusdem lobis numero 

 aequalia et alterna, exserta sive inclusa. Filamenta filiformia, 

 libera, aequalia v. subinaequalia, rarissirae basi dilatata et in an- 

 nulum connata, nonnunquam basi dilatata et distincta, utrinque 

 in dentem producta. Antherae introrsae, biloculares, erectae v. 

 incumbentes, connectivo brevi v. loculos superante, apice poro 

 geraino v. rimulis brevibus, saepissime juxta totam longitudinem 

 dehiscentes, demum iramutatae, v. spiraliter involutae aut con- 

 volutae. Germen liberum, diphyllum, carpophyllorum marginibus 

 valvatim connatis v. parum introflexis uniloculare, nunc iisdem 

 intus longius productis seraibiloculare v. discretis pseudoquadri- 

 loculare, interdum Irophospermium centrale altingentibus complete 

 biloculare. Trophospermia ad suturas solitaria v. gemina, inter- 

 duni carpophyllorum parietibus adnata, rarius trophospermium 

 centrale solitarium, maturitate pleruraque solutura. Gemmulae 

 pluriraae, pluriseriatae, analropae. Stylus terminalis, carpophyl- 

 lis contiuuus, interdum brevissimus v. nullus; stigma bifidum v. 



