PR0DR0MUS FLORiE NOVO-GRANATENS1S. 287 evidenter platystachya ! S. ambigua habitu et foliorum forma haud absimilis, sed l'oliis lateralibus evidentius cordatis, margine anteriore longius ciliatis tacile distinguendai In monographia ci. Spring haec species in Columbia quoque indicatur « Caracas (Moritz, n° 67 teste Klotzsch) », sed in herb. Ber. pianta a ci. Klotzsch citata non adest, neque in aliis herbariis veram S. cordifoliam e Columbia vidi. S. flagellata Spr., 146, p. 207, e Guyana gallica ; surculis regulariter pùmato-pyramidatis flagellatim excurrentibus, foliis parvis, lateralibus basi truncatis vel subcordatis, intermediis falcato-incurvatis conniventibus aliisque notis tacile distinguitur. S. deltoides Al. Br., prope Panuré, ad rio Uaupès detecta (Spruce, n. 2532 et 2535), quamvis flagellis careat, tamen ad consortium S. Moritziance pertinere videtur. Habitus fere 5 . serpentis. Folia rigida, parum diaphana, lateralia ovato-deltoidea, acutissima, margine anteriore versus basin breviter ciliolata, posteriore integerrima anguste revoluta et aspera. Folia intermedia late ovata, in aristam laminarti subaequantem acuminata. Bractea antica posticis longius acuminata?, dorso anguste cristato-carinatse. Microsporse rubra laxe granulata. Macrospora albidae Uh millim. crassa, grosse rugoso-tuberculata. ** Adscendentes 24. vel erectce, flagellis slolonibusque SELAGINELLA LYCHNUCHUS Spr., 1. e , expertes. 186, p. 2 / | 7 . — Tenera, surculis e basi breviter repente adscendentibus simpliciter vel composite ramosis, elongato-pyramidatis, ramis ereciopatentibus. Folia pallide viridia, plus minusve diaphana, cellulis sclerenchymaticis minus distincte striata : lateralia postica, erectopatentia, remotiuscula, lata, superneaugustius lanceolata, recta, subinsequilatera, antice versus basin paululum dilatata, sed caulis dorsum parum tegentia, prope basin attenuata, acutiuscula, preeter basin anteriorem immarginata, margine anteriore inferne ciliolata, superne remote, apice confertim denticulata, margine posteriore a medio ad basin integerrima, nervo parum conspicuo versus apicem evanescente. Folia intermedia quadruplo minora, ovata, in aristam laminam sequantem arcuatopatulam denticulatam acuminata, versus apicem carinata, marginata, utrinque denticulata, denticulis nonnullis interdum in cilias elongatas productis. Spicse ramulorum plano paulo an-