Pycnolejeunea. franz stephani. species iiepaticarum (Vol. V, 1914). 



34. Pycnolejeunea cookiensis St. n. sp. 



Sterilis, major, flavescens, flaccida, aliis hepaticis consociata. Caulis 

 ail 5 cm. longus, sparsim longeque ramosus, ramis saepe simplieibus, 

 aliis sparsim pinnulatis. Folia caulina parum imbricata, recte patula 

 valde concava, in plano subrotunda (0,81 mm. longa, medio 0,87 mm. 

 lata) apice rotundata, brevi basi inserta, basi antica truncato-rotundata. 

 Cellulae 18X18 trigonis magnis, basales 18X27 [i parietibus vali- 

 dis. Lobulus majusculus, parmn inflatus, folio triplo brevior, ovato- 

 triangulatus, carina oblique adscendens, substricta, levi sinu in folium 

 exeurrens, apiee quain basis tripio augustiore, ohli([iie emargiuato, 

 angulo spina valida stricta armato, margine supero stricto. Amphigas- 

 tria caulina maxima, late rcniformia tt mm. lata, 0,67 mm. longa) 

 transverse inserta, apice breviteremarginato-bidentata,dentibus acutis. 



Hab. Cook Island (Oceania pacifica). 



35. Pycnolejeunea corticola St. n. sp. 



Sterilis mediocris gracilis, pallide flavo-virens, flaccida, in cortice 

 dense depresso-caspilans. Caulis ad ."> ein. longus, irregulariler remo- 

 teque pinnatus, hic illic bipinnatus. Folia caulina conferta, reete patula, 

 valde concava, in plano ovato-triangulata leviterque faleata (1,17 mm. 

 longa, medio 1 mm. lata) asymmetrica, margine supero semicirculari, 

 infero stricto vel leviter sinuato, apice obtusa, brevissima basi inserta, 

 basi antica longe truncata. Cellulse superse 27x27 ji, basales 27x36 ji, 

 parietibus validis ; ocelli vix majores, irregulariter distributi. Lobulus 

 parvus, recte palcns, in siln siibiniauYatus, earina stricta, recto angulo 

 in folium excurrens, apiee truneatu>, margine supero occulto, inplano 

 late ovatus, apice excisus, angulo spina valida hamata armato. Amphi- 

 gastria caulina majuscula, caule quintuplo latiora, transverse inserta, 

 basi utrinque rotundata, superne late acuminata, ad V 3 iuciso-biloba, 

 sinu angusto, lobis late triangulatis, porrectis acutis. 



Hab. Insula Luzon. 



36. Pycnolejeunea decurvifolia St. Hedwigia 1896, p. 101. 

 Dioica pallida vel flavescens, mediocris, flaccida, in cortice caespitans. 



Caulis ad i em. longus, irregulariter multiramosus. Folia caulina con- 

 ferta, recte patula, concava apiceque arcte decurva, in plano ovata 

 (1,58 mm. longa, medio 1,17 mm. lata) asymmetrica, margine supero 

 late arcuato, infero stricto, apice truncato-rotundata, brevi basi inserta, 

 basi antica longe truncata. Cellulse superae 27 X 27 basales 27 X 45 {jl 

 trigonis nullis. Lobulus exiguus, folio sextuplo brevior, in situ rectan- 

 gulatus, parum longior quam latus, carina stricta, recte patula, sinu 

 617 



