Rectolejeunea . franz stephani. species hepaticarum (Vol, V, 1914). 



7 nim. loiigus, irregulariter ramosus. FoUa cauiina conferta, recte 

 patula, parum concava, in plano ovato-triangnlata (0,5 mm. longa, basi 

 0,4 nim. lata) asymmetrica, margine infero substricto, antico valde 

 arcuato, apice obtusa, brevi basi inserta, basi anticatruncato-rotundata. 

 Cellulse superse 18 ji, regulariter hexagonae, trigonis parvis, basales 

 18X27 ^, trigonis majusculis attenuatis. Lobulus magnus, folio duplo 

 brevior, oblique adscendens, carina leviter arcuata, levi sinu in folium 

 excurrens. apice quam basis vix angustiore, emarginato, angulo apicu- 

 lato. Amphigastria caulina parva, cauli sequilata, subrotunda, trans- 

 verse inserta, ad medium emarginato-biloba, lobis anguste triangu- 

 latis obtusis. «Perianthia uno latere innovata, late pyriformia, 0,4 mm. 

 longa, 0,3 mm. lata) rostro brevi, antice carinulata, carinis posticis 

 levissimis ». Folia floralia lanceolata, obtusa (0,83 mm. longa, medio 

 0,33 mm. lata) lobulis tertio brevior, sublinearis, parum solutus. 

 Amphigastrimn florale foliis floralibus sequilongum, anguste lanceo- 

 latum, ad medium inciso-bifidum, rima angusta, lobis angustis apice 

 setaceis. Androecia in ramis terminalia, bracteis trijugis. 



Hab. America tropica. Amazonas. Santarem. 



26. Rectolejeunea papulosa (S.) St. 



Syn. : Cheilolejeunea papulosa S. Hep. Am. And., p. 258. 



Dioica pusilla, rufo-brunnea, in cortice spongiose csespitans. Caulis 

 ad 5 mm. longus, longe irregulariterque pinnatus et bipinnatus. Folia 

 aulina parum imbricata, oblique patula, parum concava, in plano 

 ovato-elliptica (0,41 mm. longa, 0,33 mm. lata) asymmetrica, margine 

 infero leviter sinuato, supero late rotundato, apice obtusa vel rotun- 

 data, brevi basi inserta, basi antica truncato-rotundata, antice papulosa. 

 Cellulss superse 18X18 \l, basales 18X27 [j., trigonis parvis; Lobulus 

 magnus, folio duplo brevior, in situ oblongus, duplo longior quam 

 latus carina oblique adscendens, leviter arcuata, papulosa, apice quam 

 basis vix angustiore, emarginato, angulo apiculato, in plano late conicus, 

 parum longior quam latus, carina substricta, levi sinu in folium 

 excurrens, apice quam basis parum angustiore, recte truncato, angulo 

 apiculato. Amphigastria caulina exigua, caule parum latiora, transverse 

 inserta, rotunda, ad ^/3 emarginato-biflda, lobis angustis hamatim 

 conniventibus. Flores feminei in ramis terminales. Folia floralia cauli- 

 nis multo majora, lanceolata, valde concava apiceque arcte decurva, 

 in plano 0,83 mm. longa, 0,33 mm. lata) obtusa, antice papulosa, 

 lobulus parum brevior, anguste linearis, haud solutus, truncatus, angulo 

 acuto vel obtuso. Amphigastrimn florale lobulis sequilongum, ligu- 



693 



