No. 3] MOUSSES NOU VELLES. 



Bryum Kaalaasii n- sp. 



(PI. II. lig. 10, a, a, b, c.) 



Cæspites densiusculi, humillimi, ca. 5 mm. alti, superne vindes 

 vel luteo-virentes. 



Siirculus sub apice fertili innovationes binas subpenicillatas 

 radicellasque longissimas parum ramosas nigro-violaceas crasse 

 papillosas proferens. 



Caulis 0.26 mm. crassus, violaceo-niger, more generis con- 

 structus. 



FoUa caulina siccitate adpressa, humiditate erecto-patentia, 

 haud decurrentia, inferiora ovata, breviter cuspidata, margine plana, 

 costa in apice dissoluta; media ovato-ovalia, sensim breviter cu- 

 spidata, 1.9—2.2 mm. longa, 0.6—0.64 mm. lata, margine integro 

 late revoluta, apice tamen plana, male limbata, concaviuscula, ad 

 insertionem vinoso-rubra ; cellulce tenues, haud porosæ, chloro- 

 phyllo fere destitutæ; basales mediæ subrectangulæ, ca. 0.085 mm. 

 longæ et 0.027 mm. latæ, angulares latiores, ut 0.035 mm. lalæ, 

 turgidulæ; illæ folii superioris rhomboideo-hexagonæ, ca. 0.04 mm. 

 longæ et 0.018 mm. latæ, marginales in folio dimidio inferiore vix 

 diversæ, turgidulæ, in dimidio superiore in seriebus ca. 2 paullo 

 longiores et angustiores, limbum indistinctum sistentes; costa in 

 foliis inferioribus tota longitudine vinoso-rubens, in junioribus basi 

 tantum vinosa, ceterum virescens, basi 0.07 mm. lata, cum apice 

 dissoluta, inferne plano-convexa, superne teres et dorso valde pro- 

 minens, e ducibus ventralibus mediocribus 2, grege comitum, fasci- 

 culo cellularum maxime stereidearum, cellulis dorsalibus ca. 8 

 constructa. 



Folia innovationum caulinis minora et angu^tiora, sæpe paullo 

 distinctius limbata, ceterum similia. 



Folia perichætialia intima minuta, ovato-triangula, margine 

 plana ; costa debilissima. 



Inflorescentia heteroica, floribus bisexualibus, rarius masculis. 

 Antheridia ca. 4, 0.5 mm. longa, 0.07 mm. crassa; pistillidia 

 pauca, 0.8 mm. longa, paraphyses numerosiores. 



Vaginula ovalis, 0.6 mm. longa, 0.35 mm. crassa, violacea. 

 Seta 12—16 mm. longa, inferne 0.18 mm., superne 0.15 mm. 



