Tmchytejeunea. FRANZ STEPHANI. SPECIES HEPATICARUM (VOL. V, 1913). 

 solutus, obtusus. Amphigastrium florale perianthio duplo brevius, 

 ovato-oblongum, apice angusto breviter inciso-bidentato. Androecia 

 valde numerosa, bracteis sexjugis, confertis, dorso papulosis, ex axilla 

 infera foliorum orta. 

 Hab. Brasilia, prope Rio-Janeiro. 



Trachylejeunea S. 1884 



Plantse minores vel parvae, saepe exiguae, in cortice caespitantes, 

 rarius foliicolae. Caulis 2-7 cm. longus, irregulariter ramosus, saepe 

 multiramosus, sub fiore simpliciter, rarius dichotome innovatus. Folia 

 caulina imbricata, recte patula, valde concava apiceque arcte decurva, 

 vulgo ovata, obtusa vel acuta vel apiculata, brevi basi inserta, basi 

 antica longe truncata, semper armata, marginibus crenulatis vel serru- 

 latis, antica saepe papillata vel cellulis papuloso-prominulis aspera. 

 Cellulae foliorum mediocres, basales parum longiores, trigonis magnis 

 vel maximis, parietibus tenuibus, saepe validis vel trabeculatim incras- 

 satis. Lobulus magnus, oblongus, carina oblique adscendens, arcuata, 

 sinu profundo in folii marginem excurrens, apice angustiore, truncato 

 vel excisulo, acuto vel obtuso, rarius spina armato. Amphigastria cau- 

 lina majuscula vel magna, rarius parva, apice bifida, basi obcuneata, 

 nusquam cordata. Inflorescentia vulgo monoica, rarius dioica vel autoica. 

 Perianthia pyriformia vel clavata, quinque carinata, carinis armatis, 

 papulosis vel cristulatis vel dense spinulosis, rarissime nudis. Folia 

 floralia caulinis multo majora, acuta vel obtusa ; lobulus majusculus, 

 oblongus. Amphigastria floralia caulinis conformia i. e. apice bifida, 

 minora vel majuscula, rarissime lobulis connata. Andracia sessilia, 

 parva, rarius in ramis terminalia. 



I. Africa 



t. Trachylejeunea serrulata St. 



II. America tropica 



2. Trachylejeunea acanthina S. 



3. Trachylejeunea conifera. St. n. sp. 



299 



