480 



A. HESSELBO 



Folia caulina decurrentia, inferiora ovata, breviter cuspidata, 

 superiora longius cuspidata, breviter vel non decurrentia, 2.3 mm. longa 

 et 0.9 1 mm. lata, apice integra vel leviter dentata; margine ad apicem 

 reflexa, seriebus 24 cellularum angustiorum limbata. Cellulae foliares 

 leptodermes, indistincte porosae, basilares rectangulae, 0.0350.050 mm. 

 longae et 0.0180.020 mm. latae, ad insertionem rubrae; illae folii medii 



elongato-hexagonae, vel rhomboideae 



0.050.08 mm. longas et 0.015- 

 0.018 mm. latse, apicales angustiores. 

 Costa fusco-lutea, ad insertionem 

 0.08 mm. lata, in foliis inferioribus 

 sub apice desinens. in superioribus 

 in cuspidem integram excurrens. 



Folia perichsetialia intima 

 anguste triangula, margine limbata. 

 Inflorescentia synoica; an- 

 theridia perpauca; archegonia 

 et paraphyses numerosae, roseae. 

 Seta 3 4 cm. longa et 0.20 mm. 

 crassa, rubra. 



C a p s u 1 a nutans, arcuato-clavata 

 deoperculata 3. 35 mm. longa et 1 mm. 

 crassa, sub orificio obliquo rubra 

 contracta; collum 1.5 mm. longa. 

 Oper culu m humile conicum, apice 

 rubro. Annul us 0.14 mm. latus, 

 triplex. Exostomii dentes e fundo 

 purpureo vel rubro-aurantio bene 

 definite 0.400.45 mm. longi et 

 0.10 mm. lati, fusco-lutei, anguste 

 limbati, dense et subtiliter papil- 

 lulosi; lamellae ca.24, inter se liberae, 

 margine integra. Endostomium 

 exostomia vix adhaerens, luteum, 

 subtiliter papillulosum; processus 

 dentibus aequilongi, fenestrati; Cilia 

 nulla. Sporae olivaceas, 0.025-0.033 

 mm. di a metro, punctulatse. 

 damp gravelly ground at an altitude 



Fig. 5. Bryum Grcenlundii (X 3). 



W. Iceland: Haukadalsheidi on 

 of about 350 metres, August 1st, 1909. 



144. Bryum fallax Milde. 



N. Iceland: Geitaskard!, fr. 



It was growing here in a dried up pool among Pohlia temiifolia. 



145. Bryum oeneum Blytt. 

 Bnjnm nitihms Brid. 



E. Iceland: Djupivogur!; Seydisfjordur!; at an altitude of 400 metres. 

 N. Iceland: Akureyri!, at an altitude of 350 metres. NW. Iceland: Bildu- 



