Pla(/iorhi/if. \'H\m. STKIMIA.M. SPKCIKS UKPATirAHUM iVOL.VI, 1921) 



355. Pla(|ioehna tridons Sl. n. sp. 



Dioica, mediocris, gracilis, rigidus, vireiis, tielate bruunea, in 

 eortice laxe intricata. Caidis ad 6 cm. longus, parum longeque 

 ramosus, capillaceus. Folia caiilina imbricata, recte patula, decur- 

 vo-homomalla, in plano anguste oblonga (1,5 mm. longa, medio 

 0,67 mm. lata) oblique inserta, basi itaque lata, ceterum symme- 

 Irica, marginibus aequaliter leviterque arcuatis, integerrimis, apice 

 truncata, 0,33 mm. lata, tridentata, dentibus latis brevissimis. 

 Cellulse supera? 18 X 27 u., basales 18 X 36 u. trigonis nullis. 

 Perianthia obovata, ore creberrime longeque spinosa. Folia floralia 

 caulinis aequilonga, simillima, margine siipero quidem et apice 

 irregulariter denseque dentata. Androecia desunt. 



Hab. Malacca. Perak (Ridley legit). 



356. Plagiochila tenuieaulis St. n. sp. 



Sterilis minor rigidula, dilute rufo-brunnea, in cortice pulvi- 

 natim csespitans. Caulis ad 2 cm. longus, simplex, flagellis basa- 

 libus parvis, minutifoliis. Folia caulina imbricata, opposita, cauli 

 a latere appressa, parum concava, in plano subrotunda (2,25 mm. 

 longa, medio 1,75 mm. lata) integerrima, brevissima basi inserta. 

 Cellula.' superse 27 X 27 u, trigonis majusculis truncatis, basales 

 36 X 63 tf., trigonis magnis truncatis. 



Hab. Nova Caledonia (Lerat legit). 



357. Plagioehila taona St. n. sp. 



Sterilis magna gracilis flaccida, dilute brunnea, in arborum 

 ramis pendula et nidulans. Caulis ad 12 cm. longus, irregulariter 

 remoteque ramosus, ramis primariis ad 6 cm. longis, simplicibus 

 vel parum breviterque pinnulatis. Folia caulina imbricata, oblique 

 patula, parum concava, in plano ovato-trigona (4 mm. longa, 

 supra basin 2,75 mm. lata) asymmetrica, margine supero e basi 

 leviter arcuata stricto, remote valideque spinoso, margine infero 

 stricto nudo, sub apice bidentulo, apice ipso oblique truncata 

 (1 mm. lata) quinque dentata, dentibus insequalibus, supremo 

 multo validiore. Cellulae superae 27 X 27 u, trigonis subacutis, 

 basales 27 X 45 u, trigonis majusculis, nodulosis. 



Hab. Nova Caledonia (Franc legit). 



358. Plagiochlla terricola St. n. sp. 



Sterilis major rufo-brunnea, rigida, in rupibus laxe caespitans. 

 Caulis ad 6 cm. longus, superne ramosus, ramis approximatis, 



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