8 I. HAGEN. [1904 



Bryum Moenkemeyeri n. sp. 



Cæspites extensi, 2 cm. alti, densiusculi, intus decolorati, apice 

 virentes. 



Surcuhis innovationes ad 5 mm. longas ima basi tantum nudas 

 emittens, tomentum brunneum papillosum proferens. 



Caulis purpureus, 0.24 mm. crassus, sectione pentagonus; 

 fasciculo centrali 0.06 mm. magno, areolis ceterum laxis, polygonis, 

 undulatis, ad angulos nodosis, superficiem versus minoribus. 



Folia caulina densa, erecto-patentia — erecta, siccitate lenis- 

 sime flexuosa, decurrentia, inferiora ovato-acuminata, margine re- 

 curva, costa in apice evanescente ; superiora ovato4anceolata, costa 

 excurrente mediocriter cuspidata, 2.2 mm. longa, 0.77 mm. lata, 

 leviter concava, toto margine reflexa — spiraliter revoluta, subin- 

 tegra, indistincte limbata, basi demum brevi spatio rubentia ; cellulæ 

 leptodermes, porosæ, basilares pro ratione parvæ, hexagono-rectan- 

 gulæ, 0.053 — 0.07 mm. longæ et ca. 0.02 mm. latæ, angulares 

 vix diversæ ; illæ folii superioris elongato-hexagonæ — rhomboideæ, 

 0.048—0.07 mm. longæ, 0.013 — 0.018 mm. latæ, margines versus 

 crassiores et angustiores, ita ut formetur limbus 3- — 1-seriatus 

 indistincte definitus; costa ad basin 0.08 mm. lata, demum viridi- 

 fusca, in cuspidem subintegram excurrens, plano-convexa, cellulis 

 ventralibus 4, ut ducibus totidem satis parvis, fasciculo comitum 

 distincto, illo stereidearum crasso, cellulis dorsalibus ca. 8, incrassatis. 



Folia innovationum aliquanto latiora, ceterum caulinis similia. 



Folia perichætialia ovato-triangula, margine plana, costa ex- 

 currente. 



Infiorescentia synoica, antheridia 2—4, 0.3—0.37 mm. longa, 

 0.11 mm. crassa; pistillidia numerosiora, 0.43 mm. longa; para- 

 physes roseolo4uteolæ. 



Vaginula brunneo-purpurea, sub microscopio semipellucida, 

 oblonga, 0.8 mm. longa, 0.37 mm. crassa. 



Seta 2.5 — 4 cm. longa, 0.16 mm. crassa, luteo-rubra, subrigida, 

 apice arcuata. 



Capsula deoperculata pro more horizontalis, curvula, clavata, 

 ca. 2.4, mm. longa et 0.83 mm. crassa; collum 1.2 mm. longum. 



