(VOL. V, 1914). FRANZ STEPHAM. SPECIES HEPATICAUUM Rectolejeunea. 



iiitegerrigimis, rostro brevi valido. Fo/ia floralia perianthio duplo vel 

 triplo breviora, obovata, apice rotundata, lobulun diiplu vel tertio bre- 

 vior, linearis vel obloui^us, ad niedium soluliis, ncI omnino accretus 

 acutus. Amphigaslrium tlorale perianthio duplo brevius, subrotundum, 

 ad 73 inciso-bifidum, sinu acuto subrecto, lobis late triangulatisacutis. 

 Androecia desunt. 

 Hab. Ciiba. 



16. Rectolejeunea Gaudichaudii (Ldbg.j St. 

 Syn. : Lejeunea Gaudichandii Ldi)g. Syn. Hep., p. 372. 



Dioica mediocris flaccida, rufescens, in cortice spongiose csespitans. 

 Caulis ad 25 mm. longus, irregulariter remoteque pinnatus. Folia cau- 

 lina imbricata, oblique patula, valde concava, in plano ovato-oblonga, 

 vel subelliptica (1,33 mm. longa, medio 0,83 inm. lata) apice oljtusa 

 vel rotundata, brevi basi inserta, basi antica truncato-rotundata, cau- 

 lem superantia, optime symmetrica. Cellulx superae 27x27 [i ti-igonis 

 majusculis, basales 27x45 [i trigonis parvis, parietibus tenuibus. 

 Lobulus parvus (ssepe obsoletus) ovatus, folio quintuplo brevior, carina 

 leviter arcuata, levi sinu in foliuni excurrens, apice quam basis triplo 

 angustiore, exciso, angulo dente valido armato. Amphigastria caulina 

 magna, cauie triplo latiora, subrotunda, sinuatim inserta, ad 7^ bifida, 

 rima angusta obtusa, lobis anguste triangulatis subacutis. Amphigastria 

 ru)nulina valde aberrantia, angustiora, profunde biloba, lobis porrectis 

 linearibus, apice rotundatis. Andrcecia parva, sessilia, bracteis trijugis. 

 Reliqua desunt. 



Hab. Peruvia (Lima. Callao). 



17. Rectolejeunea heteroclada (S.) St. 



Syn. : Cheilolejeunea heterocladu S. Hep. Am. And., p. 256. 



Dioica, niinor, dilute rufo-brunnea, in cortice spongiose ca3spitans. 

 Caulis ad 2 cm. longus, remote breviterque pinnatus. Folia caulina 

 conferta, recte patula, parum concava, in plano late ovata (0,91 mm. 

 longa, medio 0,7 mm. lata) asymmetrica, margine infero substricto, 

 supero arcuato, apice rotundata, ad medium accreta, basi antica trun- 

 cato-rotundata integerrima. Cellulx superse 18X18(1,, basales 27X36 p,, 

 parietibusvalidis.Z^o/^w/i^smagnus, folio triplo brevior, insitu oblongus, 

 in plano ovatus, carina leviter arcuata, levi siuu in folium excurrens, 

 apice quam basis duplo angustiore, rectetruncato, angulo acuto. Amphi- 

 gaslria caulina majuscula, caule triplo latiora, subrotunda, transverse 

 inserta, integerrima. Perianthia in ramis terminalia, pyriformia 

 (1,17 mm. longa, superne 0,75 mm. lata) apice rotundata, rostro brevi 



688 



