262 ARKIV FÖR BOTANIK. BAND 1. 



segmentis panels longe remotis elongatis, basi inéequali, mar- 

 gine posteriore exciso, utroqiie margine irregulariter lobato- 

 inciso, venulis omnibus liberis. 



Herba elatior, glabra, frondlbns aggregatls. Petlolns stra- 

 minens, sterilis circa 15 cm longns, petiolns fertilis ad 30 cm 

 longns. Lamina sterilis 15 cm longa, 15 cm lata. Segmenta her- 

 bacea, tennia, pnlchre viridia, siipra nitidinscnla snbtus palli- 

 diora, 5 — 6-jnga preeter pauca cum lobo terminali confluentia, 

 horizontaliter patentia, 7 — 10 cm longa, 1 — 2 cm lata, spatio 

 2 — 4 cm inter se distantia, angnste trapezoideo-lanceolata in 

 apicem longum attenuata, acuta vel subacuta, margine crenu- 

 lato-dentata et prtecipue anteriore plus minus subpinnatifide 

 lobata incisuris parum protundis. Venulte liberse magis con- 

 fertcB quam in An. pliyllitidis. Rachis segmentorum fertilium 

 sparsissime pilosa. 



Ab An. Schraderiana Mart., le. plant, crypt. Brasil., 1817^ 

 t. 58, differt segmentis longioribus angustioribus irregulariter 

 lobatis, basi perfecte imequali, segmento apicali non dilatato- 

 conjugatim bilobo, venulis magis abundanter ramosis. 



Brasil., Matto-Grosso, Fazenda Palmeiras, ad margines. 

 fossarum locis umbrosis, Exp. 1. Regn. A 2547. 



Aneiiiiia pliyllitidis Sw. 



Von den Regnell'schen Exemplaren teile ich nur mit: 



Brasil., Rio Grande do Sul, Porto Alegre, ad terram, loci» 

 umbrosis frequens, Exp. 1. Regn. A 317; Matto-Grosso, Fazenda 

 Palmeiras, ad terram silvse umbroste, Exp. 1. Regn. A 2383; 



Paraguay, Paraguari, in declivibus silvaticis montis 

 Cerro-liii, Exp. 1. Regn. A 1819. 



(Area: sGoyaz— S. Catharina, Bahia, extrabrasil.»). 



Equisetum L. 



Einiisetiiiii g'ig-aiitenin L. 



Brasil., Rio Grande do Sul, Ö. José do Norte oppidum 

 regionis litoralis, in dumetis solo uliginoso, Exp. 1. Regn. A 

 715. — (Area: >]\Iexico — Buenos Ayres->). 



Eqiiisetiiin xjloohaetiiiii Mett. 



Paraguay, El gran Chaco, in conspectu urbis Asuncion, 

 locis siccis inter silvulas et fruticeta, Exp. 1. Regn. A 2315, 

 planta 4 m älta. — (Area: :>Peni, Chile»). 



