848 BULLETLN DE I/HERBIER BOISSIER. (266) 



lata, basi 4-plo latiora quam apice. postice caulem late superantia, uno 

 latere caulis reflexa, altero plano-legentia, marginibus arcuatis (antico 

 multo magis) apice et margine postico (nudam basin exceptam) remote 

 dentata, dentibus validis, brevibus, e lata basi pungentibus; ramulina 

 angustiora, postice minus ampliata, dentibusque angustioribus. Cellulae 

 apice 25 p, medio 35 X 43 fx, basi 35 X 50 jx parietibus trabeculatis- 

 (ex Herb. Spruce). 



Plagiochila casspitosa St. n. sp. 



Sterilis, longissinia. gracilis, flavicans, effuse caespitosa. Caulis usque 

 ad 8 cm longus, longe pauciramosus. Folia remotiuscula, recte patula, late 

 ovata, postice plus minus ampliata. cauli pro more incumbentia, alia a 

 caule recurva, apice et margine postico valide dentato-spinosa, dentibus 

 sub 10. anguste triangulatis, cuspidatis, in apice inlerdum majoribus 

 unde folium acutum vel bidentatum evadit. Cellulae apicales 30 jx, parie- 

 tibus validis, medio 25 X 50 \±, basi 35 — 70 jjl, parietibus trabeculatim 

 incrassalis (Baldwin. Herb. Askenasy). 



Plagiochila tingens St. n. sp. 



Sterilis. muscis commixta. major, flavo-rufescens, aquam sulpbureum 

 tingens. Caulis 5 — 6 cm longus, cum foliis 3 mm latus, subsimplex 

 (semperf). Folia oblique patula, conferta, pro planta parva, triangulata, 

 basi sub triplo latiora, si alam decurrentem excipis; ventre ampliata et in 

 cristam nudam ereclo-conniventia, apice truncata, 4—5 dentata, margine 

 postico 9 dentata. dentibus ubique angustis, brevibus, versus folii apicem 

 spectantibus. Cellulae apicales 25 jji, medio 25 X 40 (i, basi 25 X 50 ji 

 (ex Herb. Spruce). 



Radula acutangula St. n. sp. 



Sterilis, fusco-rufa, corticola, dense depresso casspitosa, mediocris. 

 Caulis usque ad 3 cm longus, irregulariter pinnatus vel bipinnatus, pin- 

 nulis remotis vel contiguis. Folia valde conferta, oblique patula late 

 semicordata, apice rotundata, antice caulem latissime superantia. CelL 

 ubique aequales, 17 (x, haud incrassatse. Carina lobuli oblique et arcuatim 

 adscendens, levi sinu in folium excurrens; lobuli magni, imbricati, folio 

 solum duplo breviores, apice oblique truncati, angulo ssepe acuminato 



