M A IE SEL E A € E A Е, 
MARSILIACEAE v. MansILIEAE Bartl. Ord. mat. 15 ; Endl. Gen. 67. 
Plantae paludosae, rarius terrestres. 
CAULIS repens, prostratus, radicans, hic illic ramis brevibus 
sub diversis angulis egredientibus instructus, intus fasciculo cylindrico atque ductibus aëreis et lacunis 
septis transversis partitis praeditus. FOLIA in caulis dorso distiche alternantia, plus minus remota, pe- 
tiolata, vernatione circinata, petiolis haud articulatis, foliolis quatuor subverticillatis obovatis s. obcor- 
datis s. cuneiformibus, nervis flabellatim dichotomis, s. lamina destituta foliis filiformibus graminifoliis. 
SPOROCARPIA pedicellata, globosa s. oblonga in axillis foliorum s. juxta petiolum s. in petiolo ipso 
solitaria s. aggregata, capsuliformia, coriacea, pilosa, valvis plurimis s. rima ventrali dehiscentia. SPORO- 
CARPIA ex uno s. compluribus soris formata, qui nonnullas maerosporas et numerosissimas microsporas 
continent. 
Genus in Brasilia unicum: 
MARSILIA LINN. 
Maps Linn. Gen. Plant. 1182; A. Braun Monatsber. d. 
Berlin. Akad. d Wissensch. 1863. p. 413 sqq.; 1870. р. 653 sqq.; 
18% 2. p. 635 sqq. 
CavuLIS repens, radicans. Forra disticha, petiolata, 
lamina quadrifoliata segmentis cuneatis s. obovatis, 
ecostatis, nervis flabellatim dichotomis instructa. Spo- 
ROCARPIA basin petioli s. petiolum ipsum oceupantia, 
oblonga, pilis e cellulis 2—10 formatis linearibus ob- 
tecta, carpopodiis (i. e. petiolis sporocarpiorum) plus 
minus longis instructa soros 2—12 includentia strato 
gelatinoso circumdatos, ex macrosporis 12— 300 (ut 
in M. Ernesti A. Braun inveniuntur) et microsporis 
numerosissimis formata. 
Marsiliac. 
CONSPECTUS SPECIERUM. 
A. Sporocarpia numerosa 6—25 supra basin petioli seriatim 
disposita, carpopodiis brevibus cernuis insidentia 
1. M. РОГҮСАКРА Hook. et Grev. 
В. Sporocarpia pauca (2—8) a basi petioli paullo remota, 
carpopodiis deflexis, oblonga, pentagona 
2, M. pEFLEXA А. Braun. 
1. MARSILIA POLYCARPA Hook. et Grev. Rhi- 
zoma repens elongatum ad basin foliorum multis radicibus 
instructum. Folia longe petiolata, lamina quadrifoliata, foliolis 
obovato-cuneatis, integerrimis, glabriusculis vel sparse pilosis. 
Sporocarpia numerosa (usque ad 25) supra basin petioli se- 
riatim disposita, subglobosa angulis carentia, carpopodiis bre- 
vibus, vix longioribus quam diametri sporocarpiorum. 
Tabula nostra LXXX. Fig. 1—5. 
Marsilia polycarpa Hooker et Greville, Icones Filicum 
vol. II. t. 160; Brackenridge in Exploring expedition of C. 
Wilkes. vol. XVI. Cryptog. p. 341; A. Braun, Monatsber. d. 
83 
