( 70 ) 191 



data, lineares, longe subulati, firmi, solidi, 

 densissime et minute punctulati, carina anguste 

 fissa, ciliis obsoletis aut carentibus. Planta mas- 

 cula ignota. 



Bois humides cntre la lagune du Barba et le 

 Carrizal, ^800 m. (Pitt. n« 5649). Montana de 

 Poas, 2200-2400 m. (n° 5650). Forets du Barba 

 (n«5651). 



Se distingue k premiere vue du P. stolonaeeum Hpe par 

 ses rameauxplus greles, comprimes et ses feuilies distiques. 



100. Porotrichiim plamosuniRen. etCard. (sp. nov.). 

 — Dioicum.Caulis primarius repens,stoloniformis, 

 radicosuSy seeundarius ereclus, 5-7 cent, longus, 

 dendroideus, inferne denudatus et inde stipitatus, 

 superne in frondem ovatam vel oblongam, pinna- 

 tarn et parce bipinnatam, complanatam, plerum- 

 que proliferam, nitenti-fulvescentem expansus, 

 ramis complanalis, plumosis, elongatis, inlerdum 

 ramulosis. Folia nitida^ fulvescentia, rigida, pul- 

 chre striata, disticbe patentia, caulina majora, 

 triangulari-lanceolata, acuminata, acuta, margini- 

 bus hie illic reflexis, superne serratis, costa per- 

 currente vel subexcurrente, vel infra apicem eva- 

 nida ; folia ramea multo minora,anguste oblongo- 

 lanceolata, sensim acuminata, acuta, marginibus 

 superne remote et irregulariter serratis, cosia 

 procul apice desinente; areolatio vermicularis, 

 e cellulis linearibus angustissimis, incrassatis 

 efformata, infimis brevioribus, fuscis. Flores 

 masculi numerosi, in caule secundario et in 

 ramis siii; folia perigonialia late ovato-lanceolata, 

 acuminata, integerrima, enervia; archegonia sat 



