N. BRYHN. [2nd arc. exp. fram 



152. Bryum liliputanum Bryhn & Ryan sp. nov. 



Csespites densi, 4 — 5 mm. tantnm aiti, intus fusci, superne aetate 

 lutesceiites. 



Surculus brevis, inferne subnudus, foliis versus apicem congestis, 

 innovationibus penicelliformibiis ramosus, tomento rubro-fusco verrucoso 

 denso vestitus. 



Folia caulina accrescentia, comalia subito majora, humiditate con- 

 cavo-carinata, erecto-patentia, apice subrecurva, e basi viridi angusto 

 baud decurrente ovato-lanceolata, 1.5 mm. longa et 0.45 mm. lata, in 

 cuspidem brevem denticulatam angustata, margine plus minusve reflexo 

 seriebus duabus cellularum incrassatarum lutescentium optime limbata. 



Gellnlse foliares incrassata3, parietibus lutescentibus, basilares elon- 

 gato-rectangulae circiter 0.07 mm. longse et 0.02 mm. latse, per totum 

 folium caeterum rhomboidese vel hexagono-rhomboidese circiter 0.04 mm. 

 longae et 0.02 mm. latse. 



Costa foliorum valida, rubescenti-fuscescens, in apice dissoluta vel 

 in cuspidem excurrens. 



Folia perichaetialia intima breviora qvam caulina coronalia breviter 

 mucronata, margine piano elimbata. 



Inflorescentia synoica; antheridia pauca, brevi-pedunculata, ovalia, 

 0.25 mm. longa; archegonia item pauca. 



Seta tenuis, 6 — 7 n)m. longa, inferne flava, superne lutescens, apice 

 arcuata. 



Capsula pendula, deoperculata 1.7 mm. longa et 0.75 mm. crassa. 

 Collum 0.7 mm. longum, curvatum, contra sporangium humiditate baud 

 attenuatum, siccitate constrictum, in setam defluens, plicatum, epidermide 

 e cellulis fere uniformibus qvadrato-rectangulis formato, stomatibus satis 

 numerosis ovalibus, 0.033 mm. iongis. Sporangium ad orificium 0.48 mm. 

 diametro latum, obovatum, siccitate ovale, flavum, subnitens, sub orificio 

 baud constrictum, cellulis epidermicis valde incrassatis, parietibus earum 

 baud flexuosis, plurimis elongato-rectangulis, submarginalibus in seriebus 

 duabus qvadratis, marginalibus in seriebus duabus transverse rectangulis. 



Exostomii dentes prope orificium affixi ad insertionem aurantium, 

 siccitate in tholum conniventes, 0.26 mm. longi et basi 0.05 mm. lati, 

 spatio 0.02 — 0.04 mm. inter se remoti, aurantii, versus apicem lutescentes, 

 sublaeves, sensim attenuati, mediocriter late limbati; scutula inferiora 

 qvadrata, dense punctata, suturis distinctis, mediana psene recta; la- 

 mellse altae, 12 — 16, normaliter efformatse, inter se liberse inqve eadem 

 distantia remolae. 



