Ceratolejeunea. FRANZ STEPHANI. SPECIES HEPATICARUM (VOL.V, 4913). 



Amphigastrkm florale lobulis aequilonguin, oblongum, duplo longius 

 quam latum, ad medium emarginato-bifidum, laciniis angustis apice 

 setaceis porrectis. Reliqua desunt. 

 Hab. Andes quitenses. 



74. Ceratolejeunea pyriformis S. Hedwigia 1890. 



Dioica, mediocris rufescens, dense depresso-caespitans, corticola. 

 Caulis ad 5 cm. longus, irregulariter remoteque ramosus, rariusbipin- 

 natus. Folia caulina parum imbricata, recte patula, leviter concava, in 

 plano late ovata (0,83 mm. longa, 0,75 mm. lata) symmetrica, apice 

 obtusa, ad medium inserta, basi antica truncata. Cellulse superae 27 X 

 27 {jL basales 27 X 36 {x, trigonis nullis ; ocellus basalis 27 X 45 ji. 

 Lobulus parvus, late ovatus, oblique adscendens, carina bene arcuata, 

 recto sinu in folium excurrens, apice quam basis triplo angustiore, 

 oblique truncato, angulo spinula armato. Amphigastria majuscula, 

 caule triplo latiora, subrotunda, transverse inserta, ad Vs inciso-biloba, 

 rima angusta, lobis obtusis vel acutis. Perianthia obovato-oblonga 

 cellulis inflatis papulosa, e lata basi abrupte angusteque cornuta, corni- 

 bus perianthio quadruplo brevioribus, parum divergentibus obtusis, 

 rostro parvo. Folia floralia caulinis parum longiora, obovato-oblonga, 

 acuta, superne irregulariter dentata, rarius integerrima , lobulus parum 

 brevior, oblongus, duplo longior quam latus, acutus, marginibus inte- 

 gerrimis vel parum angulatis, profunde solutus. Amphigastrium. florale 

 foliis floralibus duplo brevius, obovato-obcuneatum, liberum, ad V^ 

 inciso-bilobatum, sinu subrecto, lobis acutis. Andrcecia ignota. 



Hab. Mexico. Zacuapan. 



75. Ceratolejeunea radicosa (Nees) St. 

 Syn. : Lejeunea radicosa Ness. Syn. Hep. p. 401. 



Stirilis mediocris, rufo-brunnea, foliicola. Caidis ad 15 mm. longus, 

 irregulariter multiramosus. Folia caulina parum imbricata, recte patula, 

 ovato-trigona (1 mm. longa, basi 1 mm. lata) asymmetrica, leviter 

 falcata, margine postico parum sinuato, antico magis arcuato, brevi 

 basi inserta, basi antica longe truncata, apice obtusa. Celluloe superse 

 18 (x, basales 18X 27 jx trigonis nullis ; ocellus basalis magnus. Lobulus 

 majusculus, folio triplo brevior, oblique adscendens, ovatus, carina 

 leviter arcuata, levi sinu in folium excurrens, apice quam basis duplo 

 angustiore, oblique emarginato, angulo spina valida armato. Utriculi 

 numerosi. Amphigastria caulina majuscula, caule triplo latiora sinuatim 

 inserta, ad medium biloba, sinu obtuso angusto, lobis triangulatis acutis. 



Hab. Guiana. leg. Leprieur. 



435 



