Masligolejennea. franzstephani. SPECIESHEPATICARUM (VoL. IV, 1^)12). 



27. Mastigolejeunea formosensis Sl. n. sp. 



Slerilis, mediocris, liisco-virens, flaccida, sponi!;iose cajspitans. Caulis 

 ad 35 cm. longus, parun) longeque ramosus. Fulia caulina conferta, 

 recte pailula, squarrose recurva, in plano late elliptica, symmetrica 

 (1,33 mm. longa, 1 mm. lata) apice rotundata, late basi inserta. Cellulx 

 super;« 27X'45 [x basales vix majores, trigonis parvis, inferne nullis. 

 Lobulus maximus, in situ saccatus, carina oblique adscendens, bene 

 arcuata, levi sinu in folii marginem excurrens, in plano oblongus, folio 

 subduplo brevior, duplo longior quam latus, apice oblique truncatus, 

 atienuatus, angulo obtuso vix prominente. Amphigastria caulina reni- 

 formia, inaxima, caule quintuplo latiora, breviter sinuatim inserta, 

 apice late truncato-rotundata. 



Kab. Insula Formosa. 



28. Mastigolejeunea guahamensis (Ldbg.) St. 

 Syn. : Lejeunea guahamensis Ldbg. Syn. Hep. p. 333. 



Dioica mediocris pallide virens, flaccida, in cortice dense depresso 

 cajspitans. Caulis ad 4. cm. longus, irregulariter pinnulatus, pinnis 

 saepe fasciculatim aggregatis. Folia caulina imbricata, subrecte patula, 

 [);n'um concava, in plano ovato-elliptica, subsymmetrica (0,93 mm. 

 longa, 0,6 mm. lata) apice late rotundata, ad medium accreta, basi 

 antica leviter rotundata. Celluliv superse 12X18 (j. trigonis parvis, 

 basales 18X36 [jl trigonis majusculis. Lobulus in situ fusiforrais, in 

 plano oblongus, subligulatus, duplo longior quam latus, apice parum 

 aiigustiore, truncato, angulo apiculato. Amphigastria caulina late obcu- 

 neata, caule quintuplo latiora, subtransverse inserta, apice iate rotun- 

 data. Perianthia oblonga, plus duplo longiora quam lata, plica postica 

 altissima, rostro pai'vo. /^o/m Jloralia intima obovato-oblonga, perian- 

 thio parum longioi^a, obtusa, lobulo triplo breviore, semirotundo, ad 

 Vs soluto, apice late rotundato. Amphigastrium florale intimum perian- 

 thia subsequilongum, anguste ellipticum, apice truncato-rotundatum. 

 Andrcecia in medio ramorum, bi'acteis ad 12 jugis. 



Hab. Insulx Marianse, Guaham. Samoa. 



29. Mastigolejeunea humitis (G.") S. Hep. Am. And. 

 p. 401. 



Syn. : Phragmicoma humilis G. Syn. Hep. p". 299. 



Dioica mediocris rufo-brunnea, valida, in cortice laxe caespitans. 

 Caulis^A i cm. longus, irregulariter raultiramosus. Folia cauHna con- 

 ferta, recte palula, margine postico arcte recurvo, in plano ovato- 

 rotundata (1,33 mm. longa, \ mm. lata) apice obtusa, ad raedium 



5 Mais 19)2. 769 49 



