Metzgeria. franz stephani. species hepatigarum. 943 



30. Metzgeria dichotoma (Sw.) Nees. Hep. Eur. III, p. 508. 

 Syn. : Jungermannia dichotoma Sw. Prodr. Ind. occ. p. 145. 



Dioica, mediocris, pallida vel viridula, corticola rarius saxicola, dense 

 depresso csespitans. Frons regulariter furcata, convexa, apice obtusa. Costa 

 crassa, bene producta, ventre breviter setosa; cellulse corticales 10, 

 quaruni 4 anlicae et 6 posticse. Alas decurvse, postice breviter et minus 

 dense pilosse, margine setulis strictis simplicibus oblique patulis armatse. 

 Cellulse alarum 27X36 {x, margine minores, ad costam majores. Rami 

 feminei profunde obcordati, dorso margineque dense setosi. Calyptra 

 clavato-pyriformis, superne hispidissima. 



Hab. Jamaica (Swartz), Cuba (Wright), Brasilia (Beyrich, Glaziou, G. 

 A. Lindberg, Lindman, Puiggari). 



31. Metzgeria linearis (Sw.) Austin. Torrey Bot. CI. YI, p. 18. 

 Syn. : Jimgermannia linearis Sw. Prodr. veg. Ind., p. 145. 



Dioica, minoi';, rigida, angusta, olivacea, algoidea, in fruticum ramulis 

 effuse csespitans. Frons ad 2 cm. longa, vix 1 mm. lata, furcatim mulli- 

 ramosa, ramis adventivis posticis haud raris, parum convexa. Costa nuda, 

 radicellis suctoriis tantum sparsim aflixa, crassa, subteres, cellulis corti- 

 cahbus 12, utroque latere 6 seriatis, centralibiis maxime incrassatis 

 himineque cellularum fere obliterato. Alae nudse, ad 20 cellulas latee, 

 validse ob cellulas ad arigulos trigone incrassatas et limbo maxime incras- 

 sato, ex una serie cellularum formato. Ciliae marginales valde reductae, 

 dentifmines, breves, valde incrassatffi obtusse, ssepe deflcientes. Cellulae 

 alarum rhombeo-hexagonse 18X45 [j., ad costam latiores, margine 

 18x117 [i , obliquae seriatae. Rami masculi pilis numerosis spini- 

 formibus hirti. 



Hab. Jamaica (Swartz), Cuba (Wright). 



32. Metzgeria effusa St. n. sp. 



Dioica, mediocris, dilute flavicans vel hyahna in ramulis ultimis fruti- 

 cum elTuse csespitans maximeque inlricata. Frons valde ramosa, repetito- 

 furcata, ramis simplicibus interjeclis; rami poslici numerosi, ssepe in 

 furca seriati. Costa crassa, in sectione efliptica, bene producta, ventre 

 nuda vel setosa, setis strictis longiuscuhs; cellulae corticales costse 16 

 (utroque latere 8) ; cellulae internse 5 seriatse, corticalibus vix minores. 

 Al3e planse vel undulatse, 12 ceflulse latae, nudse, radicellis hic ilflc afflxae, 

 margine nudse vel simpliciter setosae, setis longiusculis strictis oblique 

 ad posticum nutantes. Cellulse alarum 18X36 ^l, ad costam 27X^4 |x, 



291 



