(VOL. V, 1914). IHANZ STEi'ii\.M. si-EClES IIEPATICARUM Rectolejeunea. 



Sterllis iiiajor navescens, naccida, corticola. Caulin ad ^5 cm. longus, 

 parimi I()iiti0(|ii<' lamosiis. FoUa caiilina confoiia, recle patula parum 

 (•(incava, iii plano ovato-oblonga (1,17 mni. loiiga, medio 0,75 inm. 

 lata) apice angustiore, rotundato, brevissima basi inserta, basi antica 

 truncato-rotundata, asymmeti-ica, margine infero substricto, supero 

 late arcuato, integerrima. Cellula' superse iSxt^ a, l)asales 48X27 jjl, 

 parietibiis validis. Lobulus majusculus, ovato-oblongiis, subdiiplo lon- 

 gior quam latus, in plano late ovatus, carina leviter arcuata, slricte in 

 f(tlium excurrens, apice quam basis triplo angustiore, emarginato, 

 angulo spiiia valida longissima liamata aniiato. Amphrfjaslria caulina 

 majusciila, canle siibtriplo latiora, subrotuiida, Iransverse inserta, ad 

 medium inciso-biloba, sinii semirccto, lobis aciitis. 



Hab. (^iiba, Piicr/orico, America septcntr., Bahama Insulas. 



5. Rectolejeunea Bornmulleri St. n. sp. 



Dioica mediocris, pallide virens, flaccida, corticola. Caulis ad 2 cm. 

 longus, irregulariter bipinnatus. Folia caulina parum imbricata, recte 

 patula, concava, in plano late ovata, symmetrica (1 mm. longa, medio 

 0,83 inm. lata) apice obtusa, brevi basi inserta, basi antica truncata. 

 Cellulse superse 18X18 [j., basales 18X36 [x parietibus validis. Lobulus 

 parvus, folio sextuplo brevior (ssepe ol)SoIetus)Iate triangulatus, carina 

 substricta, stricte in folium excurrens, apice quam basis subduplo 

 angustiore, oblique emarginato, angulo acuto. Amphigastria caulina 

 inagna, caule triplo latiora, transverse inserta, ad ^Js bifida, sinu recto 

 obtuso, lobis anguste lanceolatis porrectis acutis. Perianthia uno latere 

 innovata, pyriformia (1,33 mm. longa, superne 0,75 mm, lata) apice 

 rotundata, rostro parvo, plicis posticis angustis, longe decurrentibus. 

 Folia floralia perianthio duplo breviora, obovato-oblonga oldusa lobulus 

 duplo brevior, profunde solutus, oblongus, obtusus. Amphigasirium 

 florale foliis floralibus sequilongum late ovato-ellipticum, ad medium 

 bifidum, rima agusta obtusa, lobis triangulatis acuminatis obtusis. 

 Androecia ignota. 



Hab. lirasilia. Rio Grande do Siil. 



6. Rectolejeunea Brittoniae Evans. Bull. Torr. Bot. CI. 1914, 

 p. 209. 



Dioica tlavo-virens, depresso-csespitans, corticola. Caulia paruin irre- 

 gulariterque ramosus, ramis late divergentibus. Folia caulina imbricata, 

 oblique patiila, paruni concava, in plano late ovata, vel subrotunda 

 (0,5 mm. longa,0,45 mm. lata) apice obtusa vel rotundata, ad inedium 

 accreta,basi anticarotundata, caulemsuperantia, irregularitercrenulata. 



682 



