(Vol. V, 4914). FRANZ STEPHANI. SPECIES HEPATlCAKUM Rectolejeunea. 



integerrigimis, rostro brevi valido. Folia floralia perianthio duplo vel 

 Iriplo breviora, obovata, apice rotundata, lobulus duplo vel tertio bre- 

 vior, linearis vel oblongus, ad medium solutus, vel omnino accretus 

 acutus. A»> phigastHum ftorale perianthio duplo brevins, subrotundum, 

 ad V 3 inciso-bifidum, sinu acuto subrecto, lobis late triangulatis acutis. 

 Andraeia desunt. 

 Hab. Cuba. 



16. Rectolejeunea Gaudichaudii (Ldbg.) St. 

 Syn. : Lejeunea Gaudichaudii Ldbg. 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 mm. lata) apice obtusa 

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

 lem superantia, optime symmetrica. CeUul.-e superae 27x27 p trigonis 

 majusculis, basales 27x^5 {j. trigonis parvis, parietibus tenuibus. 

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

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

 angustiore, exciso, angulo dente valido armato. Amphigas/ria caulina . 

 magna, caule triplo latiora, subrotunda, sinuatim inserta, ad 2 /a biflda, 

 rima angusta obtusa, lobis anguste triangulatis subacutis. Amphigastria 

 nnnulina valde aberrantia, angustiora, profunde biloba, lobis porrectis 

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

 Reliqua desunt. 



Hab. Peruvia (Lima. Callao). 



17. Rectolejeunea heteroclada (S.) St. 



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



Dioica, minor, dilute rufo-brunnea, in cortice spongiose caispitans. 

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

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

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

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

 cato-rotundata integerrima. Cellulse superae 18X18^, basales 27X36 |x, 

 parietibusvalidis.lofttt/twmagnusjolio triplo brevior,insitu oblongus, 

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

 apice quam basis duplo angustiore, recte truncato, angulo acuto. Amphi- 

 gastria caulina majuscula, caule triplo latiora, subrotunda, transverse 

 inserta, integerrima. Penanthia in ramis terminalia, pyriformia 

 (4,17 mm. longa, superne 0,75 mm. lata) apice rotundata, rostro brevi 

 688 



