Hygrolejeunea. franz stephani. species hepaticarum (Vol. V,19U). 



79. Hygrolejeunea microloba (Taylor) St. 

 Syn. : Lejeunea microloba Tayl. Syn. Hep. p. 764. 



Dioica mediocris, pallide virens vel flavicans, in humo laxe caespi- 

 tans. Caulis ad 4 cm. longus, sparsim irregulariterque ramosus. Folia 

 caulina parum imbricata, recte patula, valde concava, in plano ovata, 

 subsymmetrica (1,25 mm. longa, 0,9 mm. lata) apice rotundata vel 

 acuta, ad medium inserta, basi antica truncato-rotundata. Cellulse 

 supera? 27 X27 u, basales 27x*5 fi trigonis parvis. Lobulus parvus, 

 saepe obsoletus, folio septuplo brevior late conicus, carina oblique 

 adscendens, leviter arcuata, recto sinu in folium excurrens, apice 

 quam basis triplo angustiore, recte truncato, angulo apiculato. Amphi- 

 gasiria caulina magna, caule tripio latiora (0,58 mm. longa et lata), 

 optime cordiformia, leviter sinuatim inserta, basi utrinque cordatim 

 arnpliata, apice ad medium biloba, sinu angusto, lobis acutis. Amlrwia 

 exigua, sessilia, bracteis bijugis. 



Hab. InsuLr paeifien-. 



80. Hygrolejeunea Moelkenboeriana (Sande-Lac) St. 

 Syn. : Lejeunea Molkenboeriana Sande-Lac Syn. Hep. Jav. 1856, p. 66. 

 Dioica magna gracillima, pallide virens, in cortice dense depresso- 



caespitans. Caulis ad 6 cm. longus, irregulariter breviterque pinnatus, 

 ramis longioribus interjectis paucis, similiter pinnulatis, rarius bipin- 

 natis. Folia caulina remotiuscula vel parum imbricata, recte patula, 

 valde concava, in plano oblonga (1 mm. longa, medio 0,67 mm. lata) 

 apice grosse cuspidata, ad medium inserta, basi antica late rotundata. 

 Cellulte superse 18X48 { x, basales 27X36 jx, trigonis nullis. Lobulus 

 rnagnus, falio quadruplo brevior, in situ ovatus, in plano subrotundus, 

 carina oblique adscendens, bene arcuata, recto sinu in folium excur- 

 rens, apice quam basis parum angustiore truncato, angulo apiculato. 

 Amphigastria caulina magna, caule quintuplo latiora, optime cordi- 

 formia, sinuatim inserta, basi utrinque cordatim ampliata, apice ad 

 2 /3 inciso-biloba, lobis late triangulatis cuspidatis porrectis. Perianthia 

 uno latere innovata, obovata(l,5 mm. longa, superne 0,75 mm. lata) 

 plicis angustis longe decurrentibus, rostro brevi valido. Folia floralia 

 parva, perianthio triplo breviora, obovato-oblonga, apice rotundata, 

 lobulus parum brevior, lanceolatus, acutus vel obtusus. Amphigastrium 

 florale perianthio duplo brevius, late obovatum, ad mediura inciso- 

 bifidum, lobis lanceolatis cuspidatis. Androecia parva, sessilia, bracteis 

 sexjugis. 

 Hab. Java. 



563 



