26 ICONES MUSCORUM. 



PHYSCOMITRIUM HIANS, LhuJb. 



Tab. 16. 



Plants dense gregarite stepissime laxe caespitantes. brunneo- 

 virides. 



Caulis 2-3 lineas altus, simplex vel innovante quandoqiie 

 parce ramosus, basin versus valde radicidosiis. 



Folia erecto-patentia, oblongo-ovata, breviuscule acuminata, 

 integerrima, vel sub acumine angulis cellularura exeuntibus 

 levissime serrulata, nervo sub acumine dissoluto ; areolatione 

 hexagono-oblonga laxa, cellulis superioribus minoribus sub- 

 quadratis. 



Flores monoici : masculi gemmacei ad basin caulis laterales, 

 sessiles. 



Capsula in pedicello crasso 1-2 lineas alto ovali-obconica, 

 desiccata sub ore hiante leniter constricta, rugosa, collo crasso 

 longiusculo ; annulo triplici latissimo ; operculo deplanato altius 

 rostrato ; caljptra basi laciniata operculum tegente. 



Physcomitrium HIANS, Lindb. Manip. Muse. 1, p. 51 (1870). 

 Gymnostomum LATiFOLiUM, Drum. Muse. Bor.-Amer. 1, No. 16. 

 Physcomitrium Hookeri, Hampe, Icon. Muse. 3, No. 30. 



Hab. Wet meadows and marshy fields, not uncommon in 

 Ohio and the neighboring States, and generally mixed with 

 Physcomitrium pyriforme, as it is in the second edition of 

 the Musci Exsiccati Americani of Sullivant and Lesquereux, 

 No. 284. 



The reason for displacing the name of this species to consti- 

 tute of it a mere variety of Drummond's species is not evident. 

 As has been already remarked by Wilson, in the London Journal 

 of Botany, Vol. 3, it is very variable in size ; some of the plants 

 being as long as those of P. pyriforme, with which it is generally 



