ICONKS MUSOOIUIM. 97 



TETRAPLODON AUSTRALIS, Sulliv. 8f Lesqx. 



Tab. 58. 



Plants tenerae, graciles, tomento radiculoso intertextae, in 

 caespitulis compactis superne laete viridibus inferne fuscescentibus 

 congesta3. 



Caulis uncialis, brevior vel longior, simplex vel parce fastigi- 

 ato-ramosus. 



Folia mollia, dissita, erectiuscula, elongato-lanceolata, longe 

 tenui-acuminata, remote grosse serrato-dentata, interdum fere 

 pinnatifida, rarius subintegra ; costa cum apice desinente ; reti 

 laxissimo oblongo-hexagono. 



Flores dioici et monoici : flos masculus discoideo-capitulifor- 

 mis, conspicuus, in planta distincta graciliore terminalis, vel 

 gemmseformis in plantae fertilis foliorum axillis ; floris terminalis 

 perigonialibus 4-6, e basi late ovata erecta repente lineali- 

 attenuatis subliorizontalibus ; antheridiis et paraphysibus sub- 

 clavseformibus, numerosissimis. 



Capsula oblongo-ovalis, parvula, apophysi sporangio paululum 

 latiore et longiore in pedicellum 3 - 5-linearem crassum sensim 

 defluente instructa, laxius areolata, cellulis orificii marginalibus 

 subquadrato-rotundis nee (ut in T. angustato) transversim ob- 

 longis ; peristoma dentibus binatim conjunctis haud demisse 

 insertis ; calyptra elongato-conica, basi baud fissa, operculum 

 hemisphaerico-conicum obtuse apiculatum vix tegente. 



Tetraplodon australis, Sulliv. & Lesqx. Muse. Bor.-Amer. Exsicc. (ed. 



1), No. 151 ; Sulliv. Mosses U. States, p. 53, t. 4. 

 Splachnum setaceum, Hook. & Wife, in Drumm. Muse. Amer. Coll. 2, 



No. 27, nee Miehx., cujus planta ad Tetrap. angustatwn referenda est. 

 Sphagnum foliis tenuibus, etc., Dill. Hist. Muse. t. 85, f. 15, p. 550. 



Hab. Swamps near the sea-coast, Florida to New Jersey. 



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