Pycnolejeuneu. franz STEPHANI. species hepaticarum (Vol. V, 101-4 1. 

 alis cordatim rotundatis, accretis, apic<- |)anun angusliora, ad medium 

 biloba, rima angusta obtusa. lobis anguste triangulatis obtusis. Perian- 

 thia uno latere innovata, parva, late pyriformia, rostro valido rouico. 

 piicis posticis angustis longe decurrentibus. Folia floralia periantbio 

 subduplo longiora, obovato-oblonga, obtusa, lobulus giganteus, pman- 

 tliio aequilongus, lanceolatus, obtusus, ad medium soiutus. Amphi- 

 guHlrium tlorale ovato-rotundatum, liberum (1 mm. longum, supra 

 basin1,l mm. latum) ad medium inciso-bifidum, riiua angusta. lobis 

 anguste triangulatis obtusius culis. Andraevia ignota. 

 Hab. Ceylon. 



63. Pycnolejeunea Fitzgeraldii St. n. sp. 



Sterilis minor, dilute brunnea, flaccida, muscicola. Caulis ad25 mm. 

 longus, sparmim irregulariterque ramosus. Fo//fl caulina paruui itnbri- 

 cata, recte patula, valde concava, in plano late ovata (0,83 mm. 

 longa, medio 0,75 mm. lata) symmetrica, apice obtusa, lata basi 

 inserta, basi antica truncato-rotundata. Cellulx supene 18X18 a, 

 basales 18X27 a trigonis majusculis. Luhnhis maximus, folio parum 

 brevior (0,67 mm. longus) in situ anguste oblongus (in plano parum 

 latior) oblique adscendens, triplo longior quam latus, carina leviter 

 arcuata, siuu brevi acuto in folium excurrens, apice quam basis multo 

 angustiore, recte truncato, angulo acuto, margine supero sub apice 

 constricto. Amphigastria caulina majuscula, caule quadruplo latiora, 

 subrotunda transverse inserta, ad medium inciso-biloba. sinu anguslo. 

 lobis acutis. 



Hab. Xora Guinea. 



64. Pycnolejeunea excisula St. n. sp. 



Monoica, major, flaccida, flavo-rufescens, in cortice spongiose caes- 

 pitans. Cuulis ad 4 cm. longus, irregulariter breviterque pinnatus. 

 Folia caulina dense imbricata, subrecte patula, concava, in plano late 

 ovata (1,67 mm. longa, medio 1,33 mm. lata) asymmetrica, margine 

 supero late arcuato, infero substricto, apice rotundata, brevissima basi 

 inserta, basi antica truncato-rotundata. Cellulee supene 18X18 t a, 

 trigonis magnis, basales 18X36 a, trigonis parvis. Lobulus mujus- 

 culus, folio subduplo brevior, oblique patens, in situ linearis, triplo 

 longior quam latus, in plano ovato-oblongus, duplo longior quam 

 latus, carina substricta, levi sinu in folium excurrens, apice quam basis 

 subduplo angustiore oblique truncato, angulo cellula prominente api- 

 culata. Amphigastria caulina magna, caule quintuplo latiora, reni- 

 formia, transverse inserta, inferne late cuneata, apice late truncato- 

 631 



