Lejeunea. franz stepiiani. species iiepaticarum (Vol. V, 1915)> 



niciim, ad V^ inciso-bifidiiin, rima angusta, laciniis triangulatis acutis. 

 Andrsecia exigua capitata, bracteis 2-3 jugis. 

 Hab . Kilini a n dsc/i aro. 



17. Lejeunea isomorpha Gottsche. Abh. Ver. Bremeu, VII 

 p, 355, 



Monoica mediocris, flavo-virens, vel rufescens, in cortice cKspitans.. 

 Caulis ad 3 mm, longus, irregulariter multiramosus. Folia caulina 

 imbricata, parum concava, in plano subrotunda, (0,67 mm. longa, 

 0,58 mm. lata) ad medium accreta, basi antica truncato-rotundata, 

 caulem tegentia, apice late rotundata, integerrima; cellulx super8& 

 18X18 [j., basales 18x27 ^, parietibus validis, trigonis nuUis. Lobulm 

 majusculus. folia triplo brevior, in situ ovato oblongus, mplano ovato- 

 triangulatus, carina oblique adscendens, ieviter arcuata, amplo sinu in 

 folium excurrens, apice quam basis duplo angustiore, oblique truncata 

 vel exciso, angulo apiculato. Amphigastria caulina gigantea, optime 

 cordiformia (0,58 mm. longa et lata) basi profunde cordata, apice ad 

 medium inciso biloba, rima angusta, laciniis late triangulatis acutis. 

 Perianthia uno latere innovata, majuscula, obovato-oblonga (1,17 mm.. 

 longa. medio 0,58 min. lata) apice obtusa, rostro valido quinqueplicata, 

 plicis posticis angustis, longe decurrentibus, plica antica bene pro- 

 ducta. Folia floralia maxima perianthio sequilonga, obovato-oblonga, 

 obtusa, lobulus parum brevior, subligulatus, ad medium solutus, obtu- 

 sus. Amphigastrium florale, giganteum, perianthio sequilongum, obo- 

 vato-oblongum, ad V^ inciso-bifidum, rima angusta, laciniis lanceolatis 

 acutis porrectis. Androecia exigua, sessilia, bracteis bijugis. 



Hab. Africa orientalis., australis et occidentalis, communis. 



18. Lejeunea julacea. St. n. sp. 



Dioica pusilla, dilute virides, in cortice pulvinatim csespitans. Caulis 

 ad 6 mm, longus, parum longeque ramosus, Folia caulina conferta,, 

 oblique patula, parum concava, in plano ovata, symmetrica (0,67 mm. 

 longa, medio 0,5 mm. lata) brevi basi inserta, basi antica rotundata, 

 caulem obvelantia, apice obtusa, integerrima. Cellulse superse 27x27 jj.,. 

 basales 27X36 {j., trigonis nullis. Lobulus parvus, folio quadruplo bre- 

 vior, oblongus, sublinearis, triplo longior quam latus, carina leviter 

 arcuata, levi sinu in folium excurrens, apice quam basis vix angus- 

 tiore, oblique emarginato, angulo acuto, Amphigastria caulina gigan- 

 tea, caule quintuplolatiora,0,4 mm. longa et lata, circularia, transverse 

 inserta, ad medium inciso-biloba, sinu semirecto, laciniis triangulatis 

 obtusis. Flores feminei uno latere innovati. Folia floralia caulinis majo-^ 



715 



