Trachylejeunea. franz stephani. species HEPATICARUM (Vol. V, 1913). 

 (rarius dichotome) innovata, acute quinqueplicata, plicis posticis bre- 

 viter decurrentibus lateque divergentibus, omnibus superne breviter 

 bialatis, alis regulariter denseque crenulatis, rostro parvo. Folia floralia 

 perianthio aequilonga, obovata, apice rotundato, regulariter crenulata, 

 lobulo subduplo breviore, oblongo, ad medium soluto, acuto. Amphi- 

 gastrium florale lobulis duplo longius, ovato-ellipticum, apice breviter 

 inciso-bilobatum, sinu recto, lobis late triangulatis, crenulatis acutis. 

 Andraicia sessilia, bracteis ad 15 jugis, diandris. Capsula 0,2 mm. in 

 diametro. Sporae 12 jj. virescentes, minute asperae. 

 Hab. Jamaica. Dominica. 



5. Trachylejeunea dominicensis St. n. sp. 



Monoica parva, dilute brunnea, dense depresso-caespitans, corticola. 

 Caulis ad 15 mm. longus, irregulariter remoteque pinnatus. Folia cau- 

 lina imbricata, valde concava apiceque arcte decurva, in plano ovata, 

 valde asymmetrica, margine postico stricto, antico valde arcuato 

 (0,75 mm. longa, 0,58 mm. lata) apice obtusa, marginibus papillatis, 

 brevissima basi inserta, basi antica longe truncata. Cellulse superae 

 18X27 {i, basales 18X36 ji trigonis maximis, antice grosse papillatae. 

 Lobulus magnus, folio duplo brevior, oblique adscendens, oblongus, 

 triplo longior quam latus, carina valde arcuata, sinu profundo in folium 

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

 obtuso, sub apice maxime constrictus. Amphigastria caulina parva, 

 caule vix duplo latiora, sinuatim inserta, vix longiora quam lata, ad 

 medium inciso-biloba, sinu recto, lobis obtusis, leviter divergentibus. 

 Perianthia parva, uno latere innovata, obovata (0,83 mm. longa, 

 superne 0,5 mm. lata) apice rotundata, plicis posticis longius decur- 

 rentibus, parallelis, omnibus grosse papillatis, inferne nuda; rostro 

 magno conico. Folia floralia perianthio aequilonga, late obovata falcata, 

 apice rotundata, lobulo duplo breviore, oblongo, apice rotundato, haud 

 soluto. Amphigastrium florale perianthio duplo brevius, late obovato- 

 obconicum, ad l /« inciso-bilobatum, sinu recto, lobis late triangulatis 

 acutis. Andrcecia sessilia, bracteis ad 6 jugis. 



Hab. Insula Dominica. 



6. Trachylejeunea inflexa (Hpe) St. 

 Syn. : Lejeunea inflexa Hpe Syn. Hep., p. 350. 



Monoica, minor, flavescens vel brunnea, corticola et foliicola. Caulis 

 ad 3 cm. longus, irregulariter multiramosus. Folia caulina parum 

 imbricata, recte patula valde concava apiceque arcte decurva, in plano 

 ovato-oblonga (0,9 mm. longa, 0,58 mm. lata) asymmetrica, margine 

 303 



