Madotheca. franz stephani. species hepaticarum (\ol. IV, 1910). 



ramis longis simplicibus paiuni patulis. Foliu vaulina conferta, leviter 

 decurva, disticha, concava, ovato-triangulata, acuniiuata, apice irregu- 

 lariter dentata, niarginibus ceterum anguste incurvis, postico remote 

 grosseque dentato. Cellulx superse 27 a trigonis magnis nodulosis, 

 basales 18 X "2 pi trigonis grosse oblongo-nodulosis subtrabeculatis. 

 Foliorum lobi postici utriculati, folio longe accreti duploque breviores, 

 medio supero liberi, fusiformes, niedio antico circulariter foveolati, 

 foveola ut in congeneribus fissa, fissura labiis insequalibus, altera ros- 

 ti'atim producta, altera plana. Tubi vacui magni ex angusta basi longe 

 cyiindrici. Folia flomlia trijuga, intima maxima, valde concava, amplexi 

 caulia perianthio appressa integerrima, apice breviter trilobata, lobis 

 acutis ciliatis. Perianthia magna, anguste fusiformia, decemplicata, 

 apice maxime contracta breviter ciliata. Capsula ovalis in pedicello per- 

 brevi. Elateres 300 |i,. Sporse 40 {ji brunneae. Androecia spicata, bracteis 

 ad 12 jugis, conduplicatim concavis, appressis, monandris, apice den- 

 tatis. Antheridia magna ovali-globosa in stipite aequilongo. 



Hab. Asia et Oceania tropica, Insulse Mascarense, St-Helena, Insula 

 San Thom4 (Africa). 



Madotheca Dum. 1822. 



Plantae foliiferse majores vel maximae coiticolse, rarius rupicolae, 

 laxe csespitosse vel pendulse, virides vel plus minus flavescentes, actate 

 Sccpe brunneae. Caulis, e caudice valido repente ortus, \Tilgo regulariter 

 pinnatim et bipinnatim ramosus, e basi amphigastrii vel ex apice 

 attenuato pinnularum radicans, nudus vel ramentaceus, ramis latera- 

 libus, ex axilla interna foliorum ortis, recte patulis. Folia incuba, recte 

 patula, disticha, vulgo concava, antice oblique inserta, plus minus 

 asymmetrica, postice lobulo minore coalita. Lobulus folii elongatus, 

 plus minus concavus, cauli parum accretus sed longius saepe decur- 

 rens. CeUulse foliorum semper bene incrassatse, cuticula levis. Amphi- 

 gastria caulina magna, cauli appressa, marginibus vulgo recurvis, basi 

 plus minus inaequaliter decurrentia. Inflorescentia dioica. Flores 

 feminei in ramulo brevi laterali terminales. Folia floralia paucijuga, 

 intima caulinis subaequilonga, saepe quidem angustiora et magis 

 armata, lobulo simili breviore, vulgo uno latere amphigastrio coalito. 



18 Avril 1910. 241 1« 



